Updated on 2024/02/16

写真a

 
TOI Takeshi
 
Organization
Faculty of Science and Engineering Professor
Other responsible organization
Precision Engineering Course of Graduate School of Science and Engineering, Master's Program
Precision Engineering Course of Graduate School of Science and Engineering, Doctoral Program
Contact information
The inquiry by e-mail is 《here
External link

Degree

  • 博士(工学) ( 中央大学 )

Education

  • 1996.3
     

    Chuo University   Graduate School, Division of Science and Engineering   doctor course   completed

  • 1989.3
     

    Chuo University   Graduate School, Division of Science and Engineering   master course   completed

  • 1987.3
     

    Chuo University   Faculty of Science and Engineering   graduated

Research History

  • 2021.10 - 2025.10

    中央大学商議員

  • 2004.4 -  

    中央大学理工学部教授

  • 1998.4 - 2004.3

    中央大学理工学部助教授   Faculty of Science and Engineering

  • 1996.4 - 1998.3

    中央大学理工学部専任講師   Faculty of Science and Engineering

  • 1989.4 - 1993.5

    三菱電機株式会社中央研究所機械技術研究部

Professional Memberships

  • 精密工学会

  • 日本機械学会

  • 日本音響学会

  • 日本設計工学会校閲運営委員会委員

  • 日本設計工学会依頼原稿幹事

  • 自動車技術会

  • 日本設計工学会1999年論文賞・奨励賞審査委員会委員

  • 第4回生産学術連合会議実行委員会委員

  • International Institute of Acoustics and Vibration(IIAV)

  • Society for Experimental Mechanics(SEM)

  • 日本騒音制御工学会

  • 自動車技術会関東支部

  • Acoustical Society of America(ASA)

  • International Institute of Acoustics and Vibration(IIAV)

  • Society for Experimental Mechanics(SEM)

▼display all

Research Interests

  • Sound and vibration in general

  • Mechanical engineering in general

  • Sound and vibration in general

  • Mechanical engineering in general

  • システム工学

Research Areas

  • Informatics / Robotics and intelligent system

  • Informatics / Mechanics and mechatronics  / 機械力学・制御

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering  / 計測工学

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Control and system engineering  / 制御・システム工学

Papers

  • The Relationship between Operating Tactile Sensations and Onomatopoeic Expressions of Rotary Switches Reviewed

    Toru Miyairi, Hisato Shimomura, Takeshi Shirasaka, Takeshi Toi

    日本感性工学会論文誌   21 ( 2 )   189 - 197   2022.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本感性工学会  

    To apply onomatopoeia to product design, we investigated the relationship between the sound symbolism of onomatopoeia and physical quantities. The target of evaluation was the operating tactile sensation of rotary switches. First, a subjective evaluation experiment was conducted in which participants were asked to provide free answers using onomatopoeic expressions related to their impressions of the operating tactile sensation. The obtained onomatopoeia was analyzed by quantitative text analysis using mora as the unit of analysis, and it was found that the phonemes of onomatopoeia used by the participants differed depending on the magnitude of the click torque of switches. Next, we examined the impressions of the onomatopoeia when the click torque of the rotary switch was sequentially changed via 7-point scale evaluation experiments. As a result, the correspondence between tactile sensation and onomatopoeia was grasped quantitatively. This paper shows that onomatopoeia can be used for quantitative product design.

    DOI: 10.5057/jjske.tjske-d-21-00051

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  • Development of Operating Feeling Design of Rotary Switches in Consideration of the Combination of Tactile Sensation and Operating Sound

    Miyairi Toru, Shimomura Hisato, Shirasaka Takeshi, Otomo Takashi, Toi Takeshi

    Transactions of Society of Automotive Engineers of Japan   53 ( 5 )   874 - 879   2022

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    Language:Japanese   Publisher:Society of Automotive Engineers of Japan  

    The operating feeling of rotary switches used in various in-vehicle equipment influences our impression of the vehicle itself. Thus, the operating feeling needs designing appropriately by understanding the correspondence with the relevant physical characteristics. This study evaluated the onomatopoeic free-answer and the semantic differential method using adjectives for operating feeling of rotary switches, which consists of tactile and auditory stimuli. Two experimental results showed the relationship between phonological characteristics of onomatopoeia, adjectival expressions, and physical characteristics of stimuli, respectively. Moreover, we indicated the features of onomatopoeic and adjectival expressions in the design of the operating feeling consisting of multimodal stimuli.

    DOI: 10.11351/jsaeronbun.53.874

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  • Improving tactile feedback during push switch operation using intelligible operating sound

    Toru MIYAIRI, Jo SAKASHITA, Takeshi SHIRASAKA, Hisato SHIMOMURA, Takeshi TOI

    Journal of Advanced Mechanical Design, Systems, and Manufacturing   16 ( 5 )   JAMDSM0053 - JAMDSM0053   2022

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    Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Mechanical Engineers  

    DOI: 10.1299/jamdsm.2022jamdsm0053

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  • The effect of auditory feedback on user perception during rotary switch operation

    Toru Miyairi, Hisato Shimomura, Takeshi Shirasaka, Takashi Otomo, Takeshi Toi

    Proceedings of the International Congress on Acoustics   2022

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    Rotary switches are used in various in-vehicle devices and home appliances. It is well known that operating experience contributes to the overall user perception of product quality. This study examines the effect of sound on user perception during rotary switch operation. To this end, experiments were conducted in which participants were asked to evaluate their experience during switch operation corresponding to various values of click torque and in the presence and absence of sound. We used Japanese onomatopoeic expressions to evaluate the magnitude of tactile impressions-the participants rated the degree of consonance between their operating experience and the onomatopoeic expressions in each case on a 7-point scale. The results revealed that the scores of onomatopoeias conveying smooth impressions (e.g.,/suru-suru/) decreased in the presence of sound. In contrast, the scores of onomatopoeias conveying hard impressions (e.g., kata-kata/) increased in the presence of sound. The difference was particularly obvious corresponding to low values of click torque. These conclusions are expected to contribute to the complete understanding of the effects of auditory feedback on the operating experience of rotary switches.

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  • Comfortable Sound Design of Diesel Engine Combustion Noise Focused on Sound Pressure Fluctuation in Frequency Bands Reviewed

    Yusuke Toda, Haruki Saito, Takeshi Toi

    自動車技術会論文集   52 ( 4 )   769 - 774   2021.6

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  • Lateralization Asymmetry in Right/left Ears of Elderly Individuals with Respect to Various Sound Pressure Levels Reviewed

    Kazumoto Morita, Tsukuru Osawa, Takeshi Toi

    Proceedings of Meetings on Acoustics   42 ( 1 )   10.1121/2.0001360   2021.2

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  • Understanding the relationship between onomatopoeic expressions and sound quality for rotary switch operating sounds

    Toru Miyairi, Takeshi Shirasaka, Hisato Shimomura, Takeshi Toi

    Proceedings of INTER-NOISE 2021 - 2021 International Congress and Exposition of Noise Control Engineering   2021

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    Publishing type:Research paper (international conference proceedings)  

    In our daily lives, we often use onomatopoeia to describe objects and products. However, the correspondence between onomatopoeia and acoustical characteristics of these objects is unclear. To apply onomatopoeia to product design, we focused herein on the relationship between the sound symbolism of onomatopoeia and product sound quality. The target of evaluation was the operating sound of a rotary switch. A subjective evaluation experiment was conducted wherein the study participants were asked to provide impromptu answers using onomatopoeic expressions on their impressions associated with the operating sound of rotary switches. The obtained onomatopoeia was then analyzed via quantitative text analysis using mora as the unit of analysis. The results showed that the voiced consonants appeared more frequently in the louder operating sounds. In addition, the vowel/o/appeared more frequently in sounds with low sharpness, and the vowel/i/appeared more frequently in sounds with high sharpness. As these trends are similar to those observed in other studies on sound symbolism, this study shows the possibility of using onomatopoeia in product design.

    DOI: 10.3397/IN-2021-1745

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  • Lateralization Asymmetry in Right/left Ears of Elderly Individuals with Respect to Various Sound Pressure Levels Reviewed

    Kazumoto Morita, Tsukuru Osawa, Takeshi Toi

    The Journal of the Acoustical Society of America   148   2618   2020.10

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  • Estimation of Acceleration Feeling for Hybrid Vehicles Focused on Engine and Motor Sounds Reviewed

    Kohei Motoki, Masumi Odagiri, Takeshi Takahashi, Takeshi Toi

    自動車技術会論文集   51 ( 4 )   687 - 694   2020.7

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  • Construction of Switch Operation Feeling Model by Continuous Complex Stimulus of Tactile and Operation Sound Reviewed

    Toru Miyairi, Jo Sakashita, Chinatsu Oikawa, Tsuyoshi Shirasaka, Hisato Shimomura, Takeshi Toi

    自動車技術会論文集   51 ( 4 )   695 - 700   2020.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:自動車技術会  

    In this research, to improve the operational feeling of the rotary switch, we investigated the construction method of the switch operation feeling model by grasping the correlation between the subjective evaluation and the physical quantity for the continuous complex stimulus of tactile sensation and operation sound. First, the impression was evaluated under a single stimulus of the tactile stimulus and the operation sound stimulus, and each physical quantity corresponding to each stimulus was grasped. Next, the tendency of the operational feeling was grasped by the impression evaluation under the complex stimulus. As a result, the operation sensation estimation model created in this study showed high agreement with the actual operation sensation.

    DOI: 10.11351/jsaeronbun.51.695

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  • Changes in Lateralization Ability of Elderly Individuals When the Onset Durations of 1-kHz Pure Tones are Varied Reviewed

    Kazumoto Morita, Tsukuru Osawa, Takeshi Toi

    Proceedings of Meetings on Acoustics   39 ( 1 )   10.1121/2.0001199   2020.3

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  • Changes in Sound Lateralization Ability of Elderly Individuals When the Onset Conditions of Pure Tone of 1 kHz are Varied Reviewed

    Kazumoto Morita, Tsukuru Osawa, Takeshi Toi

    The Journal of the Acoustical Society of America   146   2834   2019.10

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  • Influence of In-Car Background Noise on Recognition of Engine Sound Reviewed

    Shun Nozawa, Takeshi Toi

    自動車技術会論文集   50 ( 5 )   1415 - 1420   2019.9

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  • Characteristics of Horizontal Sound Localization of Elderly Individuals Reviewed

    Kazumoto Morita, Tsukuru Osawa, Kenta Toyoda, Jo Sakashita, Takeshi Toi

    Proceedings of Meetings on Acoustics   35 ( 1 )   10.1121/2.0000994   2019.3

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  • Right/left Asymmetricity of Horizontal Sound Localization of Younger Individuals Reviewed

    Tsukuru Osawa, Kazumoto Morita, Kenta Toyoda, Jo Sakashita, Takeshi Toi

    Proceedings of Meetings on Acoustics   35 ( 1 )   10.1121/2.0000992   2019.3

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  • Characteristics of Horizontal Sound Localization of Elderly People and Analysis of Its Potential Influential Factors Reviewed

    Kazumoto Morita, Tsukuru Osawa, Kenta Toyoda, Jo Sakashita, Takeshi Toi

    The Journal of the Acoustical Society of America   144   1861   2018.10

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  • Right/left Asymmetricity of Horizontal Sound Localization of Younger People Reviewed

    Tsukuru Osawa, Kazumoto Morita, Kenta Toyoda, Jo Sakashita, Takeshi Toi

    The Journal of the Acoustical Society of America   144   1861   2018.10

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  • Robust Design for Minimizing the Time History Amplitude Ffluctuation by using the Parametric Model Order Reduction Reviewed

    Kengo Komori, Takeshi Toi

    Transactions of the JSME   84 ( 865,18-00102 )   1 - 16   2018.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

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  • Robust design for minimizing the time history amplitude fluctuation Reviewed

    Kengo Komori, Takeshi Toi

    Transactions of the JSME   84 ( 862,18-00103 )   1 - 16   2018.6

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  • Evaluation of the Acceleration Feeling Focused on Acceleration Sound of CVT Vehicle Reviewed

    Takeshi Toi, Takashi Kamogawa, Akihiko Arimitsu, Tetsu Yamada, Chishiro Kizawa

    Society of Automotive Engineers of Japan   49 ( 3 )   605 - 610   2018.5

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  • Best practice for positioning sound absorbers at room surface Reviewed

    Wan-Ho Cho, Jeong-Guon Ih, Tomohisa Katsumata, Takeshi Toi

    APPLIED ACOUSTICS   129   306 - 315   2018.1

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCI LTD  

    A method to facilitate the efficient positioning of sound absorbing materials on the walls of an enclosure is proposed by quantifying the contribution of each wall segment to the sound field in a vibro-acoustic transfer matrix. Wall reflections can be considered as secondary sources of radiation, whose strengths depend on the primary source and the amount of absorption by the walls. Based on this idea, the proposed evaluation method to quantify the degree of effectiveness for each wall segment is to quantify the linear independence of the rows or columns in a transfer matrix. The multiplication of quantified linear independence of elements in two transfer matrices consisting of the transfer path of sound is suggested as an observation parameter for selection. The proposed method is verified through numerical simulations and experiments. As absorbing patterns are treated at the surfaces with the highest linear independence in the transfer matrix, the sound pressure at most frequencies decreases for a point receiver or a finite region of receivers. The proposed method has advantages in terms of required effort, because it does not require any iteration process. The proposed method can produce a practically applicable solution without any detailed assumptions about the sound source and boundary conditions which are not clearly known at the design stage. (C) 2017 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.apacoust.2017.08.015

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  • A Consideration of Pleasant and Arousal Sound Stimuli Based on Sharpness and Semantic Orientations of Environmental Sounds Reviewed

    Hiroyuki Hoshino, Takeshi Toi

    The Transactions of Human Interface Society   19 ( 3 )   231 - 242   2017.3

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  • Cognitive Support of Hazard Information by Using Sound Localization Based on the Wave Field Synthesis Reviewed

    Ayumu Sato, Akihiko Arimitsu, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   48 ( 1 )   85 - 90   2017.1

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  • Improving Impact Sound of Golf Club in Consideration of Impact Vibration Reviewed

    Akihiko Arimitsu, Daiki Watanabe, Takeshi Toi

    Transactions of the JSME   82 ( 844,16-00064 )   1 - 12   2016.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    DOI: 10.1299/transjsme.16-00064

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  • Evaluation of the Awareness Maintenance by the Additional Sound in Consideration of the Comfortable Sound Quality Reviewed

    Akihiko Arimitsu, Keisuke Endo, Keigo Okazaki, Hiroyuki Hoshino, Takeshi Toi

    The Transactions of Human Interface Society   18 ( 4 )   319 - 328   2016.11

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  • Evaluation of the impression to acceleration feeling in each acceleration section in consideration of the change of acceleration sound Reviewed

    Takashi Kamogawa, Akihiko Arimitsu, Chishiro Kizawa, Michiharu Gunji, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   47 ( 6 )   1381 - 1386   2016.11

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  • Sound stabilization design for the power seat operation considering the uncertainty in production assembly Reviewed

    Akihiko ARIMITSU, Akira TAKEDA, Takeshi TOI

    Transactions of the JSME   82 ( 836,15-00640 )   1 - 11   2016.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society of Mechanical Engineers  

    Seat position and angle are adjusted electrically in the power seat of an automobile, and the quality of the vehicles interior is degraded by fluctuating sound frequencies related to that seat. In this research, a sound stabilization design for the operating sound of the power seat was proposed considering the uncertainty inherent in the production assembly. Initially, the fluctuations influence on the sound quality was evaluated by varying the frequency and the Sound Pressure Level of the operation sound, and a standard value for the sound stabilization was determined by utilizing the Taguchi method to consider the SN ratio. Next, the Taguchi method was adapted to consider a simplified model of the joint elements of the seat slide. Then, an optimal control factor for sound stabilization was specified. The sound stabilization was applied, leading to a target value for the optimal control factor that was specified in the simplified model for the joint of the power seat. Finally, that target value was optimized using the optimal control factor. We concluded that it is possible to achieve sound stabilization of power seat operation while considering the uncertainty in production assembly in this research.

    DOI: 10.1299/transjsme.15-00640

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  • A personal audio system in car cabin of equalized sound pressures in controlled zone Reviewed

    Naomichi Yanagitate, Akihiko Arimitsu, Takeshi Toi

    Journal of Acoustical Society of Japan   72 ( 1 )   17 - 25   2016.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Acoustical Science and Technology  

    DOI: 10.20697/jasj.72.1_17

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  • Vibration and Acoustic Analysis of Acoustic Guitar in Consideration of Transient Sound Reviewed

    Nobuyuki Okubo, Naoaki Iwanaga, Takeshi Toi

    ROTATING MACHINERY, HYBRID TEST METHODS, VIBRO-ACOUSTICS AND LASER VIBROMETRY, VOL 8   177 - 186   2016

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:SPRINGER INT PUBLISHING AG  

    The sound characteristic of an acoustic guitar is empirically designed for long time. The up to date vibration and acoustic analysis are applied to investigate the difference between typical guitars especially focused on transient vibration and sound just after picking a string at keynote and higher harmonic frequencies. By using a simplified front plate model of a guitar with bracings, structural modification method is utilized to realize the Operational Deflection Shape in order to meet the target sound characteristic.

    DOI: 10.1007/978-3-319-30084-9_17

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  • EVALUATION OF HUMAN MUSCLE FATIGUE DUE TO DIFFERENCES IN ACOUSTIC AND VIBRATIONAL PROPERTIES OF ROWING OARS Reviewed

    Arimitsu Akihiko, Igarashi Yosuke, Toi Takeshi

    PROCEEDINGS OF THE 23RD INTERNATIONAL CONGRESS ON SOUND AND VIBRATION: FROM ANCIENT TO MODERN ACOUSTICS   ( Paper No.140 )   1 - 8   2016

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:INT INST ACOUSTICS & VIBRATION  

    Human muscle fatigue significantly affects rowing performance and can even cause injury. However, rowers do not always choose appropriate oars, out of ignorance of the required properties. In this research, muscle fatigue was evaluated using two kinds of oars, from two manufacturers, with different shaft rigidities. A microphone, three three-axis accelerometers, and a GPS were fastened to a single-scull boat to measure the noises and vibrations produced, and the boat speed, while rowing. The loudest noise was generated when the oars executed a feather turn at the end of a stroke, owing to the speed curve of the boat. A loud noise was also produced when the water was caught by the oars with a stiffer shaft. Thus, the noise produced by the oars and the rigger of boat was studied by a detailed modal analysis of the vibrations. Next, we evaluated the psychological effects of vibrations in the oars on the personal comfort of the rower, after holding the oars. Both kinds of oars were also used for this assessment. Low-frequency vibrations were shown to cause discomfort. Finally, low-frequency vibrations were also shown to produce muscle fatigue, through physiological measurements of the arms and torso muscles. We conclude that reducing vibrations in the oars can improve rowing performance, help prevent injury, and enhance comfort in terms of sound and vibrations.

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  • Modification of Impact Sound by Adjusting the Excitation Input for Comfortable Design of Punch Press Machine Sound Reviewed

    Yohei Asahi, Wan-Ho Cho, Akihiko Arimitsu, Takeshi Toi

    Noise Control Engineering Journal   63 ( 6 )   598 - 607   2015.12

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  • Positioning actuators in efficient locations for rendering the desired sound field using inverse approach Reviewed

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    JOURNAL OF SOUND AND VIBRATION   358 ( 8 )   1 - 19   2015.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD  

    For rendering a desired characteristics of a sound field, a proper conditioning of acoustic actuators in an array are required, but the source condition depends strongly on its position. Actuators located at inefficient positions for control would consume the input power too much or become too much sensitive to disturbing noise. These actuators can be considered redundant, which should be sorted out as far as such elimination does not damage the whole control performance significantly It is known that the inverse approach based on the acoustical holography concept, employing the transfer matrix between sources and field points as core element, is useful for rendering the desired sound field. By investigating the information indwelling in the transfer matrix between actuators and field points, the linear independency of an actuator from the others in the array can be evaluated. To this end, the square of the right singular vector, which means the radiation contribution horn the source, can be used as an indicator. Inefficient position for fulfilling the desired sound field can be determined as one having smallest indicator value among all possible actuator positions. The elimination process continues one by one, or group by group, until the remaining number of actuators meets the preset number. Control examples of exterior and interior spaces are taken for the validation. The results reveal that the present method for choosing least dependent actuators, for a given number of actuators and field condition, is quite effective in realizing the desired sound field with a noisy input condition, and in minimizing the required input power. (C) 2015 Elsevier Ltd. All rights reserved.

    DOI: 10.1016/j.jsv.2015.07.037

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  • Maintenance of the Awareness Level Based on Audiovisual Information in a Vehicle Compartment Space Reviewed

    Akihiko Arimitsu, Keigo Okazaki, Takashi Goto, Toshiya Yasuoka, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 6 )   1099 - 1104   2015.11

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  • Hazard Cognitive Support by Localized Warning Sound in a Vehicle Interior Based on Brain Activity Measurement Reviewed

    Yusuke Mogi, Ayumu Satou, Akihiko Arimitsu, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 6 )   1093 - 1098   2015.11

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  • Investigation of Task for Sound Quality Evaluation Based on Physiological Information Reviewed

    Koichi Uchida, Kazuto Hanawa, Akihiko Arimitsu, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 6 )   1111 - 1116   2015.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Journal of Society of Automotive Engineers of Japan  

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  • Evaluation of the influence of human-sensible temperature of complex stimuli in sound and color environment Reviewed

    Akihiko Arimitsu, Keigo Okazaki, Takeshi Toi

    Journal of Acoustical Society of Japan   71 ( 6 )   267 - 275   2015.6

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Acoustical Science and Technology  

    DOI: 10.20697/jasj.71.6_267

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  • Distribution Optimization of the Sound in Vehicle Interior Generated from Multi-channel Sound System Reviewed

    Akihiko Arimitsu, Rui Ono, Shuzo Hogaki, Hiroyuki Nakajima, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 2 )   559 - 564   2015.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Society of Automotive Engineers of Japan  

    DOI: 10.11351/jsaeronbun.46.559

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  • Prevention Support of Inattentive Driving with an Alarm System Based on Complex Stimulus for Improvement of Recognizability Reviewed

    Akihiko Arimitsu, Hiroki Tanigawa, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 2 )   437 - 442   2015.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Society of Automotive Engineers of Japan  

    DOI: 10.11351/jsaeronbun.46.437

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  • Proposal of an Alarm System Based on Complex Stimulus of Alarm Sound and Seat Vibration for Supporting Prevention of Traffic Signal Oversight on the Approach to an Intersection Reviewed

    Akihiko Arimitsu, Hiroki Tanigawa, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   46 ( 2 )   431 - 436   2015.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Society of Automotive Engineers of Japan  

    DOI: 10.11351/jsaeronbun.46.431

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  • Sound Design of the Structure Borne Sound Induced by Impact Reviewed

    Wan-Ho Cho, Akihiko Arimitsu, Takeshi Toi

    Journal of the Institute of Science and Engineering, Chuo University   ( 20 )   1 - 11   2015.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Institute of Science and Engineering, Chuo University  

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    Other Link: http://ir.c.chuo-u.ac.jp/repository/search/item/md/rsc/p/7142/

  • CREATION OF FUNCTIONAL SOUND ENVIRONMENT IN CONSIDERATION OF SPEECH PRIVACY IN CHEMOTHERAPY ROOM OF THE MEDICAL UNIVERSITY HOSPITAL Reviewed

    Akihiko Arimitsu, Kiyoshi Fujinuma, Takeshi Toi

    PROCEEDINGS OF THE 22ND INTERNATIONAL CONGRESS ON SOUND AND VIBRATION   ( Paper No.493 )   1 - 8   2015

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:INT INST ACOUSTICS & VIBRATION  

    Speech, noises induced by medical equipment and so on are loud in a hospital. Though, sufficient attention has not been paid to the medical sound environment. A questionnaire survey was conducted about the medical sound environment to patients and medical professionals about 1,000 people in a medical university hospital. According to the survey, the patients utilizing the chemotherapy room spent for 130 minutes in average. The patient's complaints were that alarm noise of medical equipment can't reduce, and speech privacy of neighboring patients can't protect due to using a curtain in the medical room. Furthermore, the stress of sound environment was correlated between psychological evaluation and physiological evaluation using an ECG. So, it is important that relax-able sound environment for patients and concentration-able sound environment for medical professionals are created. In this research, countermeasures against an issue of speech privacy in a chemotherapy room were considered. First, a sound masking system, speech privacy equipment with a film-like directional loudspeaker of electrostatics type (DS), was setup in a simulated medical room. Masking sound was played from a curvature DS (DSC) placing over a patient's bed. The sound directivity for a masking area was controlled by changing bending angle of DSC. Therefore, annoyance of the masking sound around the bed could be reduced by using the proposed system. Next, appropriate masking sound for satisfying both speech cobscurity and the allowance for annoyance in a masking area was studied. The relation between word intelligibility and masking sounds by using the logistic regression analysis was evaluated. Finally, the effectiveness of the system by using DSC and the appropriate masking sound was confirmed in the chemotherapy room of the medical university hospital.

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  • Reduction of Radiating Sound from CFRP Laminated Plates with Orthotropy Reviewed

    Nobuyuki Okubo, Yuki Izumi, Takeshi Toi, Hideyuki Muramatsu, Yuji Naito

    EXPERIMENTAL TECHNIQUES, ROTATING MACHINERY, AND ACOUSTICS, VOL 8   97 - 105   2015

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    CFRP is being positively introduced because of its light weight with sufficient stiffness for example in vehicle body but from acoustic aspect more investigations are needed. In order to grasp the vibration and acoustic feature of flat and curved CFRP laminated plates with orthotropy, the difference from isotropic material such as steel is clarified using experimental modal analysis. As a result CFRP is found to possess a dominant radiating sound mode shape at specific frequency. Then based on the FE model of the CFRP plate, a small CFRP patch with optimum anisotropy is designed to attach for effective reduction of the sound and finally its performance is verified in experiment.

    DOI: 10.1007/978-3-319-15236-3_9

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  • Development of a New Loudness Model in Consideration of Audio-visual Interaction Reviewed

    Kai Aizawa, Takashi Kamogawa, Akihiko Arimitsu, Takeshi Toi

    INTER-NOISE 2014   CD-ROM ( p477 )   1 - 10   2014.11

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  • Robust design to minimize eigen frequency variance of structure by stochastic finite element method Reviewed

    Akihiko Katagiri, Takeshi Toi

    Transactions of the JSME   80 ( 819 )   DR0329 - DR0030   2014.11

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    In a mechanical structure development focusing on the noise and vibration, numerical analysis method like finite element method and structural optimization is widely used to predict and improve a frequency response of the structure. But, the results of these method are idealized and uncertainties in structure like parts shape and connecting part are neglected in many cases. In recent years, the mechanical structure is becoming slim and light weight to save a energy. Therefore, the influence of the uncertainties becomes large relatively, so it is necessary to take in the uncertainties to the numerical analysis. In this paper, as a one of the numerical analysis with uncertainties, robust design method based on stochastic finite element method and structural optimization will be discussed to minimize frequency response variance of structure by the uncertainties. In this paper, the robust design method were explained in detail. And, as an example of application, the robust design method was applied to an FE model. It showed that the structure which minimize the frequency response variance can be find efficiently by the robust design method.

    DOI: 10.1299/transjsme.2014dr0329

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  • The Influence of the Sensation of Rhythm on Comfort and Productivity Reviewed

    Masao Yamaguchi, Kazuto Hanawa, Takeshi Toi

    INTER-NOISE 2014   CD-ROM ( p120 )   1 - 9   2014.11

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  • Impression Change of EV Driving Sound in Consideration of Audio-visual Information and Driving Intention Reviewed

    Masao Yamaguchi, Yasuhide Watanabe, Osamu Maeda, Nobuyuki Okubo, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   45 ( 5 )   859 - 864   2014.9

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  • Multi-zone Sound Field Control by the Inverse Approach in a Vehicle Interior Reviewed

    Akihiko Arimitsu, Rui Ono, Naomichi Yanagidate, Shuzo Hogaki, Hiroyuki Nakajima, Wan-Ho Cho, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   45 ( 5 )   909 - 915   2014.9

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    DOI: 10.11351/jsaeronbun.45.909

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  • Robust design to minimize FRF variance of structure by stochastic finite element method Reviewed

    Kohei FURUYA, Jun SAKAMOTO, Akihiko KATAGIRI, Takeshi TOI

    Transactions of the JSME   80 ( 810 )   DR0030 - DR0030   2014.2

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    In a mechanical structure development focusing on the noise and vibration, numerical analysis method like finite element method and structural optimization is widely used to predict and improve a frequency response of the structure. But, the results of these method are idealized and uncertainties in structure like parts shape and connecting part are neglected in many cases. In recent years, the mechanical structure is becoming slim and light weight to save a energy. Therefore, the influence of the uncertainties becomes large relatively, so it is necessary to take in the uncertainties to the numerical analysis. In this paper, as a one of the numerical analysis with uncertainties, robust design method based on stochastic finite element method and structural optimization will be discussed to minimize frequency response variance of structure by the uncertainties. In this paper, the robust design method were explained in detail. And, as an example of application, the robust design method was applied to an FE model. It showed that the structure which minimize the frequency response variance can be find efficiently by the robust design method.

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  • Similarity Evaluation between Automobile Acceleration Sound and Musical Instrument Sound based on Subjective and Objective Evaluation Reviewed

    Akihiko Arimitsu, Kai Aizawa, Kazuto Hanawa, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   45 ( 1 )   115 - 120   2014.1

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  • Development of vibration damper for energy harvesting Reviewed

    Nobuyuki Okubo, Taiju Kunisaki, Takeshi Toi

    Structural Health Monitoring   5   135 - 142   2014

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    In vibration engineering, unnecessary vibration energy can be dissipated by a damper into not only heat energy but also electric energy for energy harvesting. But a common damper for energy harvesting has to be tuned into a resonance in order to reserve large vibration and therefore for frequency varying case, the efficiency is very low and the application is limited. In this study a special damper system is so designed as to generate sufficient electric power even for frequency varying case based on two approaches: the resonance of the damper can be adjusted corresponding to the input frequency and the fixture of the damper has multiple resonances which coincide the structural resonances. The damper system consisted of permanent magnet and coil is verified to have variable resonance and the resonances of the damper fixture are found to have coincident resonances. Finally the damper system is applied to a motor bike where sufficient power is generated in case of varying engine rotation.

    DOI: 10.1007/978-3-319-04570-2__15

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  • Development of vibration damper for energy harvesting Reviewed

    Nobuyuki Okubo, Taiju Kunisaki, Takeshi Toi

    Conference Proceedings of the Society for Experimental Mechanics Series   5   135 - 142   2014

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    In vibration engineering, unnecessary vibration energy can be dissipated by a damper into not only heat energy but also electric energy for energy harvesting. But a common damper for energy harvesting has to be tuned into a resonance in order to reserve large vibration and therefore for frequency varying case, the efficiency is very low and the application is limited. In this study a special damper system is so designed as to generate sufficient electric power even for frequency varying case based on two approaches: the resonance of the damper can be adjusted corresponding to the input frequency and the fixture of the damper has multiple resonances which coincide the structural resonances. The damper system consisted of permanent magnet and coil is verified to have variable resonance and the resonances of the damper fixture are found to have coincident resonances. Finally the damper system is applied to a motor bike where sufficient power is generated in case of varying engine rotation.

    DOI: 10.1007/978-3-319-04570-2_15

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  • Influence of Automobile Body Color for Impression of Door Closing Sound Based on the Visual and Auditory Matching Reviewed

    Akihiko Arimitsu, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   44 ( 6 )   1403 - 1408   2013.11

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    DOI: 10.11351/jsaeronbun.44.1403

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  • Comfortable Sound Design of Automobile Trim Knocking Sound Based on Visual and Auditory Sensation Reviewed

    Kai Aizawa, Akihiko Arimitsu, Shuzo Hogaki, Tomohiko Tokunaga, Takeshi Toi

    Transactions of Society of Automotive Engineers of Japan   44 ( 4 )   1045 - 1050   2013.7

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  • Development of comfortable sound design and stabilization method of sound quality for precision information equipments : Influence of variation of transient sound on auditory sensation Reviewed

    Masao Yamaguchi, Sho Shirakata, Takeshi Toi

    Journal of Acoustical Society of Japan   69 ( 6 )   267 - 275   2013.6

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    DOI: 10.20697/jasj.69.6_267

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  • 有限要素法によるゴルフクラブの振動・放射音特性の予測(構造減衰と体積加速度を利用した予測法) Reviewed

    古屋耕平, 高木一晃, 大久保信行, 久松吾郎, 戸井武司

    日本機械学会論文集   78 ( 790,C編 )   2015 - 2027   2012.6

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    In this paper, the finite element modeling of Golf Club, prediction of radiation sound from the club, and structural modification to reduce the radiation sound are discussed. The golf club consists of head and shaft, and the club's characteristic (in particular damping ratio) is different from head, shaft each. In this paper, modeling of connection effect based on a structural damping is proposed. And volume acceleration is applied to predict the radiation sound from club head. Comparing volume acceleration and experimental radiation sound, it is shown that the relative frequency response can be predicted in sufficient accuracy. Finally, structural modification using plastic plate is discussed. The plastic plate influences to club as structural damping. The modeling to predict the effect of plastic plate is shown.

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  • 音質評価指針に基づいたゴルフクラブの構造設計 Reviewed

    古屋耕平, 高木一晃, 大久保信行, 久松吾郎, 戸井武司

    日本機械学会論文集   78 ( 790,C編 )   2006 - 2014   2012.6

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    In the conventional design process of the golf club, maximizing the ball carry distance was 1st design objective. However, it is difficult to increase the distance more than other golf club maker, because volume of the club head, groove depth of the head face and etc.. are regularized by Golf Official Regulation. In this paper, to characterize the golf club and get ahead of the other maker, structural design of golf club based on the sound quality is discussed. Evaluating the sound quality of golf sound, most sensitive frequency range to improve the impression of sound is specified. And structural modification is applied to decrease the sound pressure of sensitive frequency range.

    DOI: 10.1299/kikaic.78.2006

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  • 動バネ法による伝達力の実験同定と同定結果を利用したエンジン-フレーム連成振動の低減 Reviewed

    古屋耕平, 松井智之, 大久保信行, 戸井武司

    日本機械学会論文集   77 ( 781,C 編 )   3350 - 3364   2011.9

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    In this paper, focusing on the coupled vibration of light weight vehicle engine and frame, the efficient method to reduce the vibration is discussed. First, target coupling vibration is explained by experimental data. And transfer force identification which transmits from the engine to the frame through the engine mount is carried out using dynamic stiffness method. In order to explain how the engine and the frame are coupling, the coupling index is introduced. The index is defined by inner products of the identified force and the frame FRF. Finally, the method to reduce the coupling index by adjusting the engine mount angle is proposed. The optimal adjustment angle is predicted and modifying the angle in experiment, it is shown that the adjustment method can reduce the coupling index and coupled vibration.

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  • Development of sound quality stabilization method of multi function peripheral Reviewed

    Masao Yamaguchi, Sho Shirakata, Nobuyuki Okubo, Takeshi Toi

    PROCEEDINGS OF ISMA2010 - INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING INCLUDING USD2010   123 - 136   2010

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    These days, Multi Function Peripheral (MFP) that integrates various functions such as the copy, printer, fax, and scanner into one equipment is advanced. The number of parts of the MFP has increased compared with a machine of single purpose function. Moreover there is a great demand for high-speed and high-resolution MFP, consequently the operation sound becomes noise issue due to the increase in the number of parts, complicated mechanism and speeded up driving parts. As a result, there is a greater call for a more comfortable sound quality in the MFP year and year.
    There are many sound sources in the MFP. The operation sounds include steady sound and transient sounds, one of the steady sounds is noise from the motor, and one of the transient sound is collision noise between the paper and the roller. Some methods of sound quality improvement of the MFP have been proposed. However, variation in the sound pressure and in the timing of the transition sounds during the copy process has not been reported. These variations are caused by the parts and the production process uncertainties in addition to deterioration with age over a long period.
    In this study, we focused on the rhythm consists of the transient sounds emitted from the MFP during copy process. The variations about the sound pressure and the timing at the transition sounds are measured experimentally. Additionally, the influences of the variations of the time interval between transient sounds of each consecutive cyclic part and between each transient sound in one cyclic part are investigated by subjective sound quality evaluation. As a result, it is confirmed that the variation of the time interval between each transient sound in one cyclic part is dominant to sound quality of the MFP. Finally, the tolerance range of the variation for comfortable sound design can be estimated.

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  • Clarification of sound radiation mechanism for airborne ultrasonic transducer Reviewed

    Shinichi Sakai, Yasuo Shiozawa, Takeshi Toi

    Acoustical Science and Technology   30 ( 6 )   404 - 409   2009

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    An airborne ultrasonic transducer is generally required to generate high sound pressure in order to realize precise detection and long-range measurement. The purpose of this study is to analyze the vibration mechanism of a piezoceramic transducer and to indicate guidelines for the optimum structure in order to increase the pressure amplitude. We focus our attention on the peak appearance in the pressure response of the transducer. We then clarify, experimentally and numerically, the sound radiation mechanism from vibrational and acoustical points of view. In this report, we present newly observed vibration modes with two peaks and promising schemes for efficiently increasing the sound pressure amplitude. © 2009 The Acoustical Society of Japan.

    DOI: 10.1250/ast.30.404

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  • Prediction on Vibration and Electromagnetic Field of Electric Motor for Noise Improvement Reviewed

    Nobuyuki Okubo, Hisakazu Narukami, Takeshi Toi

    PROCEEDINGS OF ISMA 2008: INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING, VOLS. 1-8   1983 - 1988   2008

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    Electric motors are widely used in information device, home electric, industry, etc. The technical demands on motor nowadays should meet not only compact, high power and efficiency but also less noise and vibration. In this study, a simple plate and an electromagnet are used to measure the magnetic flux density and the plate vibration. Also the electromagnetic analysis model is used to calculate the electromagnetic excitation force that loads on FE plate model to predict the vibration for verification. Then an axial gap type brushless DC motor is dealt with for actual application. The predicted magnetic flux density based on electromagnetic analysis model of the motor is confirmed by measured data. Finally structural modification to change the FRF of rotor component is applied and the noise improvement is achieved under operating condition.

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  • 暴露時の活動別道路交通騒音被害の損失評価値の計測 Reviewed

    今井久, 鹿島茂, 戸井武司, 小林洋介

    交通工学   41 ( 3 )   70 - 79   2006.5

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  • Identification of excitation force generated from automobile engine in high frequency range Reviewed

    Nobuyuki Okubo, Satoru Shimamura, Takeshi Toi

    Proceedings of ISMA2006: International Conference on Noise and Vibration Engineering, Vols 1-8   3985 - 3991   2006

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    In order to design the sound quality in interior and exterior space of a car and improve the vibration comfort, the identification of excitation force generated from the engine is very important and inevitable. Since the direct identification of force under operating condition is difficult to conduct, the indirect identification based on FRF measurements, that is, the inverse FRF times the response result the force, becomes popular but requires the excitation at force generation points such as main bearings, which is very hard to install the exciter. As alternative way, by use of reciprocity, the FRF may be replaced by exciting the monitoring response point and detecting the response at force generation point. But it is still very time consuming to excite several points.
    Instead of that, the ordinal modal testing in which only a few easy access point are stationary excited while many responses can be measured within short time and a little effort, is expected to predict the FRF between the force generation point and the monitoring response point under operating condition. After curve fitting, the prediction is possible so called as synthesized FRF. However in high frequency range, the curve fitting only provides very limited number of mode and the synthesized FRF may be far from the correct one especially at frequency valleys that are very sensitive to be inverted in force identification process.
    In this paper a new approach is proposed in which the number of mode is successively expanded in the vicinity of high frequency range of interest and the differences of synthesized FRF during such expansion are taken into account to determine the appropriate monitoring response points. This approach is verified by a numerical FE and experimental model of T plate and finally an actual V6 automobile engine is tested to identify the excitation force.

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  • Development of modal testing system for micro devices Reviewed

    Nobuyuki Okubo, Shinya Kobayashi, Takeshi Toi

    Proceedings of ISMA 2004: International Conference on Noise and Vibration Engineering, Vols 1-8   1721 - 1726   2005

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    In order to make good use of micro devices of small size and lightweight such as MEMS, DVD pickup actuator, etc., the dynamic behavior should be considered. However due to the difficulty of measuring FRI's with conventional exciter because of additional constraint and mass by its armature and load cell, the extended modal analysis such as structural modification, sensitivity analysis, may not be utilized.
    Therefore a very small electro-magnetic exciter, so called micro exciter of coin size, is developed and used to measure FRFs for micro devices. First compared with conventional exciter, the advantage of micro exciter is revealed to apply small size and lightweight structures. Next how the micro exciter is useful to measure FRFs and conduct structural modification is verified by applying to MEMS like structure numerically and experimentally. Finally a DVD pickup actuator is tested and a structural modification when the optical lens becomes heavier can be properly predicted.

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  • Rotor vibration reduction with polymeric sectors Reviewed

    JK Dutt, T Toi

    JOURNAL OF SOUND AND VIBRATION   262 ( 4 )   769 - 793   2003.5

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    This work has been undertaken principally with an idea to improving the dynamic performance of rotorshaft systems, which often suffer from two major problems (a) resonance and (b) loss of stability, resulting in excessive vibration of such systems. Polymeric material in the form of sectors has been considered in this work as bearing supports. Polymeric material has been considered in this work as both stiffness and loss factor of such materials varies with the frequency of excitation. Stiffness and loss factor have been found out for the proposed support system comprising of polymeric sectors. Depending upon the frequency of excitation the system matrix, in this case, changes and dynamic performance of the rotor-shaft system also changes accordingly. Here in this work avoidance of resonance and application of optimum damping in the support have been investigated by finding out the optimum dimension, i.e., the optimum thickness and optimum length of the sectors. It has been theoretically found that use of such sectors reduces the rotor unbalanced response, increases the stability limit speed for simple rotor-shaft systems and thus improves the dynamic characteristics. Parameters of the system have been presented in terms of non-dimensional quantities. Many examples have been presented in support of the conclusion. The life of such supports, particularly in the presence of chemicals and other reagents has not been investigated. (C) 2002 Elsevier Science Ltd. All rights reserved.

    DOI: 10.1016/S0022-460X(02)01081-7

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  • Acoustic Simulation Techniques in Consideration of Aerodynamic Noise

    TOI Takeshi

    Turbomachinery   31 ( 5 )   287 - 293   2003

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    DOI: 10.11458/tsj1973.31.287

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  • 機構ガタによる振動を考慮した車載AV機器の耐振設計(第1報 機構ガタ部位の位置特定) Reviewed

    戸井武司, 金田慎治, 大久保信行

    日本機械学会論文集   68 ( 676,C編 )   3465 - 3470   2002.12

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    AMD device, as AV apparatus mounted on automobile, causes reading error to miss the data on MD by optical pickup due to external body vibration. This paper describes that the cause of reading error depends on the gap vibration at high frequency range in spite of sinusoidal input at low frequency using actual MD device. Next a new method is proposed to identify the location of objective gap among possible gaps by good use of real time animation in time domain based on responses with and without gap vibration. Also a simple plate model is used to verify the effectiveness of proposed method.

    DOI: 10.1299/kikaic.68.3465

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  • Sound Quality Improvement on Transient Sound Generated by Operating Shutter of Camera Based on Mechanism Design Reviewed

    Takeshi Toi, Satoshi Kazahaya

    Journal of the Acoustic Society of Japan   58 ( 7 )   406 - 413   2002.7

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    DOI: 10.20697/jasj.58.7_406

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  • 高速回転体より生じる回転騒音の予測と低減 Reviewed

    戸井武司, 加藤英介

    日本音響学会誌,日本音響学会   56 ( 10 )   705 - 712   2000.10

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    DOI: 10.20697/jasj.56.10_705

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  • 音響加振力を用いた高速回転体の騒音予測と音質改善 Reviewed

    戸井武司, 加藤英介

    日本音響学会誌   56 ( 6 )   437 - 444   2000.6

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  • 滅衰が不均一に分布する機械の振動挙動を表す高精度モデルの構築 Reviewed

    戸井武司, 佐藤満, 大久保信行

    精密工学会誌   66 ( 5 )   801 - 805   2000.5

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    In case of uniformly distributed damping, the system can be expressed as real mode shapes and therefore the prediction of structural modification can be achieved with high accuracy. However in case of un-uniformly distributed damping, such as automobile suspension consisted of link, bush, the system should be expressed as complex mode shape, resulting less accurate prediction. In this paper, a numerical model is used to reveal the cause of such inaccuracy and then new algorithms are proposed to improve such inaccuracy. Finally by using proposed algorithm, an accurate vibration model of actual automobile suspension is obtained to be able to predict the change of vibration after structural modification.

    DOI: 10.2493/jjspe.66.801

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  • Development of Virtual Vibration Simulator to Evaluate Effects of Structural Modification for Bodily Sensation

    Takeshi Toi, Makoto Toyama, Toshihiko Nemoto, Tsuneyoshi Kurokawa, Nobuyuki Okubo

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   66 ( 645 )   1462 - 1467   2000

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    The virtual vibration simulator using a part of the system is utilized to experience the vibration for bodily sensation under actual operating condition. In order to evaluate the effects of structural modification on the virtual vibration simulator, a new method is so developed as to predict the modified system frequency response function based on the hybrid component of the part and FE model for modification part together with the component of the rest of system. After being verified by simple structure, the method is applied to a steering of truck to generate the vibration under operating condition before and after structural modification, which is realized by three exciters. © 2000, The Japan Society of Mechanical Engineers. All rights reserved.

    DOI: 10.1299/kikaic.66.1462

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  • Reduction of Radiation Noise for Rotating Tire under Constant Speed using Modal Analysis and Boundary Element Analysis

    Takeshi Toi, Naoki Ishii, Nobuyuki Okubo, Zempachiro Adachi, Toshiyuki Ikeda

    Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C   66 ( 652 )   3874 - 3879   2000

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    Noise from rotating tire is studied by not only running on a road or drum test but also numerical simulation, however it is not clear to find the cause of noise generating mechanism and take prompt measures. In this research, a vibration deformation is predicted by sound radiation from a rotating tire under constant speed and the noise reduction is carried out by structural modification. First, the contribution of each vibration mode shape is estimated by using modal analysis and boundary element analysis and verified by numerical simulation. Next, the proposed method is applied to a rotating tire to predict the vibration deformation at some frequencies of the noise problem. The advantage of this method is as non-contact measurement and to obtain the contribution of each vibration mode shape. Finally, the highest contribution of the vibration mode shape is focused for structural modification to reduce the noise of the rotating tire. © 2000, The Japan Society of Mechanical Engineers. All rights reserved.

    DOI: 10.1299/kikaic.66.3874

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  • 数値部分モデルと部分実構造を併用した自動車用ハイブリッド振動シミュレータの開発 Reviewed

    戸井武司, 島村旭, 大久保信行

    日本機械学会論文集   63 ( 616,C編 )   4134 - 4139   1997.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本機械学会  

    A vibration simulator was utilized to evaluate the dynamic characteristics of a complicated mechanical system, which requires the total structures to be available. However, in the design stage, only one component is generally under consideration to improve the system dynamics. Therefore, it is useful to develop a hybrid vibration simulator using only the ready-made component which is called a real substructure, as if it behaves as in the total system. In this work, a hybrid model is built by the substructure synthesis method using the FE component model which was obtained by numerical analysis using the finite element method without a real structure, and an experimental model which was obtained by experimental modal analysis of the real substructure. This hybrid model was reduced to the degree of freedom of the connecting point, and we determined a few deciding numbers of excitation and excitation location based on the error ratio and by computing the virtual transmitted force. The real substructure was excited by a hybrid vibration simulator for realizing the vibration behavior in a total system with a modified excitation force, which compensated for the electrical and mechanical characteristics of the vibration simulator.

    DOI: 10.1299/kikaic.63.4134

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  • Force Identification and Its Application Invited Reviewed

    Nobuyuki OKUBO, Takeshi TOI

    International Winter School on Optimum Dynamic Design using Modal Testing and Structural Dynamic Modification,   63 - 74   1997.12

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  • 測定による固体伝ぱ音と境界要素法を併用した簡便な振動挙動予測 Reviewed

    戸井武司, 加藤裕治, 大久保信行

    日本機械学会誌   63 ( 606、C編 )   417 - 422   1997.2

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本機械学会  

    In order to suppress structure borne sound, it is very important to analyze the vibration behavior of a machine. Accelerometers are commonly used in measuring the vibration behavior; however, the weight of those prevents the user from obtaining accurate results. In this paper, sound pressure distribution measured by microphones is utilized to predict the vibration behavior as noncontact measurement. The relation between the vibration and sound pressure can be expressed using boundary element method. Simple prediction of the vibration behavior can be achieved using measured sound pressure distribution caused by structure borne sound and a vibration-sound pressure transformation matrix. The proposed method is validated by numerical simulation and experiment at natural and off-natural frequencies.

    DOI: 10.1299/kikaic.63.417

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  • 相対振幅感度を利用した精密機器の主機能部の低振動化 Reviewed

    戸井武司, 村瀬芳典, 大久保信行

    精密工学会誌   63 ( 1 )   55 - 59   1997.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:精密工学会  

    The purpose of this research is the reduction of relative motion between two locations of main functional part of precision device under various conditions. First, sensitivity analysis is described which takes only one location, relative motion or objective frequency band into consideration in conventional method. Next, new sensitivity analysis is proposed to consider not only objective frequency band but also relative motion. The new method is applied for a simple numerical model and experimental model, and structural modification is carried out for the reduction of relative motion to compare of conventional methods. Moreover, relative motion between objective lens and stage that are main functional part in microscope for inspection of large scale integration circuit is analyzed by new sensitivity method for reducing relative motion in low frequency band. The image deflection can be reduced by structural modification and evaluated using two dimensional position sensor quantitatively.

    DOI: 10.2493/jjspe.63.55

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00043942404?from=CiNii

  • 外乱入力の時間・周波数・空間的な変動による騒音の実験的解析 Reviewed

    戸井武司, 加藤裕治, 大久保信行

    日本機械学会論文集   62 ( 595, C編 )   955 - 960   1996.3

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    DOI: 10.1299/kikaic.62.955

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  • 実稼動中における機械の騒音発生メカニズムの解明 Reviewed

    戸井武司, 金子格三, 大久保信行

    日本機械学会論文集   61 ( 587, C編 )   2882 - 2887   1995.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:日本機械学会  

    DOI: 10.1299/kikaic.61.2882

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  • 実稼動中における部品間伝達力の予測と振動・騒音の低減 Reviewed

    戸井武司, 青山和正, 大久保信行

    精密工学会誌   61 ( 2 )   213 - 217   1995.2

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    DOI: 10.2493/jjspe.61.213

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Books

  • 製品を感性に調和させる「快音設計」とは?

    戸井武司( Role: Sole author)

    サノフィ株式会社  2017.5 

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    Total pages:16   Responsible for pages:1-9   Language:Japanese   Book type:Scholarly book

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  • 音の大研究

    戸井武司( Role: Supervisor (editorial))

    PHP  2016.6 

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    Total pages:64   Responsible for pages:1-64   Language:Japanese   Book type:Scholarly book

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  • Acoustic Keyword Book

    日本音響学会, 編, 戸井武司( Role: Joint author)

    CORONA PUBLISHING CO.,LTD.  2016.3 

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    Total pages:494   Responsible for pages:2   Language:Japanese   Book type:Scholarly book

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  • 音響キーワードブック 快音

    コロナ社  2016.3 

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  • Automotive Engineering Handbook

    戸井武司( Role: Joint author)

    Society of Automotive Engineers of Japan  2015.12 

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    Total pages:556   Responsible for pages:497-501   Language:Japanese   Book type:Scholarly book

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  • 官能評価活用ノウハウ・感覚の定量化・数値化手法 |rn|第11章第2節 生理反応に基づく客観的な音質評価

    有光哲彦, 戸井武司( Role: Joint author)

    株式会社 技術情報協会  2014.6 

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    Total pages:552   Responsible for pages:372-380   Language:Japanese   Book type:Scholarly book

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  • 官能評価活用ノウハウ・感覚の定量化・数値化手法 第11章第2節 生理反応に基づく客観的な音質評価

    株式会社 技術情報協会  2014.6 

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  • 快音のための騒音・振動制御

    加川幸雄, 戸井 武司, 安藤英一, 堤一男( Role: Sole author)

    丸善出版(株)  2012.7 

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    Total pages:196   Responsible for pages:1-15,79-113   Language:Japanese   Book type:Scholarly book

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  • 扁平マフラにおける排気音の発音メカニズムの解明

    勝又啓裕, 曺浣豪, 鱒渕宏章, 井上勝文, 戸井武司( Role: Joint author)

    Calsonic Kansei Technical Review  2012.3 

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    Total pages:106   Responsible for pages:96-99   Language:Japanese   Book type:Scholarly book

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  • 静音化&快音化設計技術ハンドブック

    田中基八郎, 戸井武司, 佐藤太一( Role: Edit)

    三松株式会社/丸善出版株式会社  2012.2 

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    Total pages:1071   Responsible for pages:24,27-30,237-250,336-359,537-555,962-983,1056-1059   Language:Japanese   Book type:Scholarly book

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  • INTER-NOISE 2011 会議報告書

    戸井武司( Role: Joint author)

    第40回国際騒音制御工学会組織委員会  2011.12 

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    Total pages:92   Responsible for pages:40-41   Language:Japanese   Book type:Scholarly book

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  • きょうのなぜ?:動物と超音波 人間には聞えない高周波数の震え

    戸井武司( Role: Supervisor (editorial))

    毎日子供新聞  2011.3 

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    Total pages:8   Responsible for pages:4-5   Language:Japanese  

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  • 子どもを取り巻く音環境-子どもの五感を育てる「音育」-

    巷野悟郎, 戸井武司( Role: Supervisor (editorial))

    日本小児医事出版社  2008.10 

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    Responsible for pages:2097-2102   Language:Japanese  

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  • 機械工学便覧 応用システム編 γ10 環境システム |rn|2・1・9 精密機器の機能音の音質設計技術

    戸井武司( Role: Joint author)

    日本機械学会  2008.3 

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    Total pages:231   Responsible for pages:28-30   Language:Japanese   Book type:Scholarly book

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  • 機械工学便覧 応用システム編 γ10 環境システム 2・1・9 精密機器の機能音の音質設計技術

    日本機械学会  2008.3 

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  • 騒音はどう防ぐ? 音で打ち消せる?

    戸井武司( Role: Supervisor (editorial))

    ニュートンプレス  2008.3 

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    Responsible for pages:148-151   Language:Japanese  

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  • 機械工学便覧 基礎編 α6 計算力学|rn|11.5 音場

    戸井武司( Role: Joint author)

    日本機械学会  2007.6 

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    Total pages:214   Responsible for pages:152-154   Language:Japanese   Book type:Scholarly book

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  • 機械工学便覧 基礎編 α6 計算力学 11.5 音場

    日本機械学会  2007.6 

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  • Vibration, Noise and Ride Quality

    中野光雄, 山下剛, 山内章裕, 丸山新一, 塩崎弘隆, 戸井武司( Role: Joint author)

    Society of Automotive Engineers of Japan  2007.5 

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    Total pages:208   Responsible for pages:150-156   Language:Japanese   Book type:Scholarly book

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  • 2030年自動車はこうなる 19.音質評価・音質設定技術

    自動車技術会  2007.5 

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  • 創立60周年記念号 自動車技術この10年 振動・騒音・乗心地

    自動車技術会  2007.5 

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  • 2030年自動車はこうなる|rn| 19.音質評価・音質設定技術

    音質評価技術部門委員会, 戸井武司他( Role: Joint author)

    Society of Automotive Engineers of Japan  2007.5 

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    Total pages:116   Responsible for pages:57-60   Language:Japanese   Book type:Scholarly book

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  • 【騒音】 不快な音とは? 騒音を音で打ち消せる?

    戸井武司( Role: Supervisor (editorial))

    ニュートンプレス  2006.4 

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    Total pages:142   Responsible for pages:110-111   Language:Japanese  

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  • とことんやさしい音の本

    戸井武司( Role: Sole author)

    日刊工業新聞社  2004.9 

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    Total pages:157   Responsible for pages:1-157   Language:Japanese   Book type:Scholarly book

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  • Automotive Engineering Handbook

    戸井武司( Role: Joint author)

    Society of Automotive Engineers of Japan  2004.9 

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    Responsible for pages:437-440   Language:Japanese   Book type:Scholarly book

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  • 音の環境と制御技術 第Ⅰ巻・基礎技術

    戸井武司( Role: Joint author)

    フジテクノシステム  2000.2 

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    Total pages:1017   Responsible for pages:485-533   Language:Japanese   Book type:Scholarly book

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MISC

  • 製品を感性に調和させる「快音設計」とは?

    戸井武司

    Felicite   6   1 - 9   2017.5

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  • Comfortable Sound Design of Impact Sound in Consideration of Impact Vibration under Playing Golf Invited

    Takeshi TOI

    Architectural Asoustics and Noise Control   51 ( 1 )   30 - 35   2022.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:Acoustical Materials Association of Japan  

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  • Onomatopoeic evaluation of rotary switch operating sensations focusing on the number of clicks

    宮入徹, 宮入徹, 下村尚登, 白坂剛, 大友貴史, 戸井武司

    日本音響学会研究発表会講演論文集(CD-ROM)   2022   2022

  • Comfortable Sound Design for High Sensibility Value

    Takeshi TOI

    Design Engineering   53 ( 9 )   653 - 658   2018.9

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:Japan Society for Design Engineering  

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  • タグチメソッドによる自動車パワーシート稼働音の音質安定化設計

    戸井武司

    機械の研究   70 ( 3 )   202 - 208   2018.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:養賢堂  

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  • 比べてわかった!「打球音」で飛距離がかわる

    戸井武司

    週間ゴルフダイジェスト   44   9 - 13   2017.11

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  • 感性価値を創造する快音設計

    Takeshi Toi

    OHM   104 ( 3 )   25 - 29   2017.3

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  • 創り出される快適な音

    戸井武司

    銀行倶楽部   ( 556 )   2 - 5   2016.11

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  • Machinery Noise and Vibration

    Yoshiyuki Maruta, Takeshi Toi

    Journal of INCE/J   40 ( 5 )   243 - 248   2016.10

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:Institute of Noise Control Engineering of Japan  

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  • Acoustic Wind Tunnel

    Yoshiyuki Maruta, Takeshi Toi

    Journal of the Acoustical Society of Japan   72 ( 7 )   420 - 421   2016.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:The Acoustical Society of Japan  

    DOI: 10.20697/jasj.72.7_420

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  • 感性価値の高いもの創り/音創りを目指して

    戸井武司

    草のみどり   296   20 - 21   2016.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:中央大学父母連絡会  

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  • Aiming to create objects and sounds with|rn|high sensory value

    Takeshi Toi

    ChuoOnline   2016.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:The Yomiuri Shinbun  

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  • Possibilities and Considerations for Sound quality Evaluation based on Physiological Measurement

    Michiaki Sekine, Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   70 ( 7 )   20 - 26   2016.7

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  • How to Create a Comfortable Sound Design with the Functionality

    Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   70 ( 7 )   14 - 19   2016.7

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  • 音質評価に基づく感性を考慮した快音設計

    戸井武司

    機械の研究   68 ( 5 )   372 - 379   2016.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:養賢堂  

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  • OS0802 Transfer Path Analysis in Time Domain for Input Location Varying Machine

    IWADATE Daisuke, OKUBO Nobuyuki, TOI Takeshi, SUZUKI kEISUKE, SAI Seiko

    2016 ( 22 )   "OS0802 - 1"-"OS0802-2"   2016.3

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    Language:Japanese   Publisher:The Japan Society of Mechanical Engineers  

    In case of input location varying machine such as planetary gear transmission, the noise is varied in function of rotating angle. The time domain Transfer Path Analysis can be utilized to investigate the path contribution. A simple model is used to verify and apply the path modification for vibration and noise reduction.

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  • OS0804 Design of multiple degree of freedom vibration power generator improving generation efficiency

    TERAUCHI Shohei, OKUBO Nobuyuki, TOI Takeshi

    2016 ( 22 )   "OS0804 - 1"-"OS0804-2"   2016.3

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    Language:Japanese   Publisher:The Japan Society of Mechanical Engineers  

    The vibration power generator is strongly desired to provide distributed local power supply. But the problem is small power at off resonance frequency. Therefore multiple degree of freedom vibration power generator is designed to improve generation efficiency for wider frequency range.

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  • D-1 Evaluation of the effects of vibration on the boat speed and the comfort in rowing

    ARIMITSU Akihiko, IGARASHI Yosuke, TOI Takeshi

    Symposium on sports and human dynamics   2015   "D - 1-1"-"D-1-5"   2015.10

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    Language:Japanese   Publisher:The Japan Society of Mechanical Engineers  

    In this research, the effects of oar vibration on boat speed and comfort in rowing were evaluated. First, the significance vibration difference by two types of boat oar to the handle part was observed by modal analysis. And then, the oar vibration transferred to the front end of a boat on the feature when turning oar blade in rowing. Therefore, it was clarified that the relation between the boat speed by GPS and the boat vibration had a negative correlation. Secondly, the boat vibration by two types of boar oar was different, and then the large catch vibration by a type of oar was observed. Finally, it was clarified that the vibration effects on the comfort in rowing by a subjective evaluation on the simulation test by using a shaker.

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  • 有限要素解析による超音波洗浄槽の設計支援

    戸井武司

    超音波テクノ   27 ( 2 )   1 - 4   2015.3

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  • Three dimensional Finite Element Simulation for the Design of an Ultrasonic Cleaning Tank

    Masato SHIMOKAWARA, Eiichi ANDO, Takeshi TOI

    IEICE technical report   113 ( 439 )   41 - 46   2014.2

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    Language:Japanese   Publisher:電子情報通信学会  

    Ultrasonic cleaning tanks are generally of three-dimensional shape. Present work aims at obtaining useful information for design and evaluation of practical ultrasonic cleaning tanks via a finite element simulation approach. Sound pressure distribution in the liquid bath, which is surrounded by the vibration plate walls, is then considered as three-dimensional model in which the coupled between the elastic plate vibration and the sound pressure in the liquid is taken into account. Then, using the coupled fluid-plate model, three type cleaning tanks are analyzed and the results of sound pressure distribution are verified with the measured. Also the experimental observation of the sound pressure distribution pattern is shown, in which an aluminum foil inserted in the field is eroded. These numerical results are compared with the experimental results wherever they are available.

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  • Axisymmetric Finite Element Simulation for an Ultrasonic Cleaning Tank

    Masato SHIMOKAWARA, Seira TAKEMOTO, Eiichi ANDO, Takeshi TOI

    IEICE technical report   113 ( 359 )   7 - 11   2013.12

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    Language:Japanese   Publisher:電子情報通信学会  

    Present work aims at obtaining useful information for design and evaluation of practical ultrasonic cleaning tanks via a finite element simulation approach. In general practice, a vibrator is installed directly to the bottom plate of the cleaning tank to form the radiator. Sound pressure distribution in the liquid bath, which is surrounded by the vibrating plate walls, is then considered as an axisymmetric model in which the coupling between the elastic plate vibration and the sound pressure in the liquid is taken into account. Then, using the coupled fluid-plate model, the cleaning tank is analyzed and the effect of the existence of the object to be cleaned is calculated and the results of the sound pressure distribution are verified with the measured. Also the experimental observation of the sound pressure distribution pattern is shown, in which an aluminum foil inserted in the field is eroded in the regions corresponding to high pressure due to the activation of cavitation. These numerical results are compared with the experimental results whenever they are available.

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  • 公開委員会「技術者育成プログラム 実学より学ぶ振動騒音技術」

    戸井武司

    自動車技術   67 ( 11 )   117   2013.11

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  • Impression change of vehicle driving sound by audio-visual information and driving operation

    Takeshi Toi

    Journal of INCE/J   37 ( 5 )   250 - 254   2013.10

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Publisher:Institute of Noise Control Engineering of Japan  

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  • For the Sustainable Development of Noise and Vibration Technology : Development of young engineer and recommendation for the future

    Syuuichi Kitamura, Nobuya Hato, Masashi Komada, Hirotaka Shiozaki, Akira Suto, Kazuhiro Sakakibara, Koyu Goto, Takeshi Toi

    自動車技術   67 ( 7 )   102 - 106   2013.7

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  • For the Sustainable Development of Noise and Vibration Technology : Portrait of present situation for rookie engineers and university students

    Koyu Goto, Nobuya Hato, Masashi Komada, Hirotaka Shiozaki, Akira Suto, Kazuhiro Sakakibara, Syuuichi Kitamura, Takeshi Toi

    自動車技術   67 ( 7 )   94 - 97   2013.7

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  • Comfortable Sound Design Developing from Noise Reduction

    Takeshi Toi

    Journal of INCE/J   37 ( 3 )   129 - 130   2013.6

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  • 動き始めた「エンジン音快適化プロジェクト」~楽器音の類似性を把握し、心地よい加速音創りに足掛かり~

    戸井武司

    道路   ( 864 )   28 - 31   2013.3

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    Language:Japanese   Publisher:日本道路協会  

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  • 公開委員会「技術者育成プログラム 実学より学ぶ振動騒音技術」

    戸井武司

    自動車技術   66 ( 11 )   122   2012.11

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  • Comfortable Sound Design for Improvement of Sound Quality by Using Acoustic Technology

    Takeshi Toi

    The journal of the Institute of Image Information and Television Engineers   66 ( 5 )   379 - 384   2012.5

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    Language:Japanese   Publisher:映像情報メディア学会  

    DOI: 10.3169/itej.66.379

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  • 扁平マフラにおける排気音の発音メカニズムの解明

    勝又啓裕, 曺浣豪, 鱒渕宏章, 井上勝文, 戸井武司

    Calsonic Kansei Technical Review   8   96 - 99   2012.3

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  • 109 Evaluation method of robustness for sound pressure minimization in vibro-acoustic system

    FURUYA Kohei, TOI Takeshi, OKUBO Nobuyuki

    2010 ( 9 )   "109 - 1"-"109-6"   2010.12

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    In our previous study, we focused on a vehicle suspension as a promising application target of a compliant mechanism and proposed a design method for a vehicle suspension based on a compliant mechanism, or a compliant suspension. In order to design a compliant suspension that satisfies design requirements of a practical vehicle suspension, such as stroke length, camber angle, roll center height and lateral rigidity, our two-stage design method that consists of topology and shape optimization was expanded. In the 1st stage or topology optimization stage, an objective function is modified to evaluate lateral rigidity, which enables to generate an initial concept of a compliant mechanism having high flexibility in a vertical direction, which is a main function of a vehicle suspension, and high rigidity in a lateral direction. In the 2nd stage or shape optimization stage, suspension stroke and camber angle are handled as objective functions, whereas stress constraint, roll center height and lateral rigidity are handled as constraint functions, which yields optimal shape of a compliant suspension. In this paper, we now focus on vibration characteristics of a compliant suspension because the main functions of a vehicle suspension are improving ride quality and running stability by absorbing vibration from road surface while running and vibration characteristics of a vehicle suspension greatly influences ride quality and running stability. Therefore, in this paper, we desgined a compliant suspension using the proposed method and analyize its vibration characteristics.

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  • 構造と音響が連成した系の現象理解のためのCAE解析法

    古屋 耕平, 戸井 武司

    シミュレーション   29 ( 4 )   137 - 141   2010.12

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  • 107 CAE Tool for Robust Design of Vibro-Acoustic System

    FURUYA Kohei, TOI Takeshi, OKUBO Nobuyuki

    Dynamics & Design Conference   2010   "107 - 1"-"107-6"   2010.9

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    This paper describes the robust design method base on CAE. In initial design stage of mechanical design, the advantage of the conventional method, Monte-Carlo method, Taguchi Method etc, is limited. Because it is need to define the noise factors as a known quantity. In this paper, novel approach which can be applied to initial design stage is proposed. The basic idea is that the noise factor is not design parameter (ex, machine component shape, stiffness of weld), but characteristic of system (ex, the interference of sound, particle velocity). In this paper, the basic idea is applied to simple FE model.

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  • 20715 Identification of Vibration Location Contributing Interior Noise and Effective Noise Reduction in Vibro-Acoustic Coupling System

    HAMANAKA Shogo, OKUBO Nobuyuki, TOI Takeshi

    2010 ( 16 )   237 - 238   2010.3

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    To reduce interior low frequency noise of a vehicle cabin, damping materials are utilized with low cost and minimum place. But, the panels with high damping interior material and high vibration mode density make matters more difficult to identify the place contributing to the interior noise. In this paper, an optimal local placement of the material considering relative phase between vibration and sound is proposed. In addition, separation of closely coupled vibration modes is proposed by good use of phase controlled multi-input.

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  • 20505 Sound Design of the Door Closing Sound for Automobile

    MIKAMI Yuma, OKUBO Nobuyuki, TOI Takeshi, TAKETANI Masayuki

    2010 ( 16 )   161 - 162   2010.3

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    The vibration and noise of automobiles by lightening might cause decreasing the product value. In this study, an improvement of the door closing sound of lightened door and a structural modification of the door outer panel were investigated in consideration of human sensibility. To forecast by CAE easily, a series of verifications was done with a simplified door experiment model. Acoustic sensitivity analysis was used to detect an effective position for structural changing. Finally, an actual door closing sound was designed to a pleasant sound.

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  • 20509 Vibration Robust Design of Structure with Multiple Part Connection Uncertainty

    MISHUKU Tsutomu, OKUBO Nobuyuki, TOI Takeshi

    2010 ( 16 )   169 - 170   2010.3

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    When a structure has multiple part connection uncertainty such as bolt fasting torque, the FE model of the structure becomes very complicated to apply Monte Carlo simulation for vibration robust design. In this paper, instead of investigating every uncertainty by changing fasting torque, only the relative mode amplitude at the part connection is deal with. A simple joint plate model is used to confirm the proposed method.

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  • 楽器だけではない,音のあふれる世界

    戸井 武司

    someone   ( 10 )   2009.12

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  • 136 The effects of noise and vibration of portable medical equipment on the human body and surrounding environment and their reduction

    NUMATA Ryuji, MASUDA Tsuneo, HORITA Hirofumi, TOI Takeshi

    Symposium on Environmental Engineering   2009 ( 19 )   127 - 128   2009.7

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    Amid ongoing super-aging society, the introduction of portable medical equipment is promoted with the expanse of patient's activities. As a result, this study will focus on noise and vibration of the portable medical equipment with air compressor, and investigate the effects on the human body and surrounding environment.

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  • Examination of Previous Survey: "Expectations for the NV Test Engineers of the Future"

    高野二郎, 山内章裕, 須藤晶, 戸井武司, 谷津幸裕, 川建治, 望月隆史, 森口金也, 中野光雄, 本田 康裕

    自動車技術   63 ( 7 )   21 - 26   2009.7

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  • 将来の振動騒音実験技術者への期待 —2005年予測に対する検証—

    高野二郎, 山内章裕, 須藤晶, 戸井武司, 谷津幸裕, 川建治, 望月隆史, 森口金也, 中野光雄, 本田 康裕

    自動車技術   63 ( 7 )   21 - 26   2009.7

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  • Weight Reduction Technique of Acoustic Insulation for Vehicle by Hybrid SEA Based on Experiment and Analysis

    Takeshi Toi

    自動車技術   63 ( 7 )   83 - 86   2009.7

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  • 20603 Noise Reduction of Continuously Variable Transmission (CVT) for Automobile

    AIKAWA Hiroki, OKUBO Nobuyuki, TOI Takeshi, HIRABAYASHI Yasnhide

    2009 ( 15 )   287 - 288   2009.3

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    The sound pressure of the belt noise is measured and the operational deflection shape is investigated at specific rpm. Then the modal testing is carried out to obtain the natural frequencies and mode shapes and the mode contribution can be analyzed. Based on FE model, the shape modification of belt element is considered for noise improvement.

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  • Comfortable sound design and its application of business equipment

    戸井武司

    日本音響学会誌   64 ( 9 )   571 - 575   2008.9

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  • 快音設計と事務機器への応用

    戸井武司

    日本音響学会誌   64 ( 9 )   571 - 575   2008.9

  • 118 Comfortable sound design for shutter of camera by using regression analysis

    ICHIKAWA Yoshitaka, TOI Takeshi

    Symposium on Environmental Engineering   2008 ( 18 )   93 - 96   2008.7

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    Recently, it is necessary to give the additional value to a basic performance of the equipment to be lost of a remarkable difference. Then, it focus on the shutter sound of the camera in this research. It aims to give the quality of sound as an additional value by making comfortable shutter sound. In aiming at making comfortable shutter sound, sound quality evaluation is used. However, when the sound quality evaluation is repeated whenever the sound is changed by a simulation and a structural modification. Then, the regression in a sound quality evaluation result and psychoacoustic parameters is made by using regression analysis. Whether it is possible to provide the directionality of sound quality is verified without sound quality evaluation.

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  • Study of Physiological Measurement for Sound Quality Evaluation

    Kazutomo Murakami, Masao Ishikawa, Hirokazu Tatekawa, Sohta Ohtsuka, Hiroyuki Hoshino, Hirohiko Shibuya, Yoshinori Yakuwa, Osamu Maeda, Naoyuki Katsura, Michiaki Sekine, Hiroto Yoshida, Takeshi Toi

    2008.7

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  • Activities Report of Sound Quality Evaluation Technical Research Committee in Fiscal Year 2006 to 2007

    Takeshi Toi

    2008.7

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement

    Akira Kuramori, Masashi Uchiyama, Michiaki Sekine, Hirokazu Tatekawa, Hiroyuki Hoshino, Yoshinori Yakuwa, Jun Yamada, Osamu Maeda, Kazutomo Murakami, Norio Murata, Masayuki Kuboki, Takeshi Toi

    2008.7

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  • Automotive Sound Source DVD 2008

    戸井武司他

    DVD   2008.7

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  • Study of Physiological Measurement for Sound Quality Evaluation

    Kazutomo Murakami, Masao Ishikawa, Hirokazu Tatekawa, Sohta Ohtsuka, Hiroyuki Hoshino, Hirohiko Shibuya, Yoshinori Yakuwa, Osamu Maeda, Naoyuki Katsura, Michiaki Sekine, Hiroto Yoshida, Takeshi Toi

    自動車音源DVD2008   DVD ( 20084173 )   2008.7

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  • Creation of Tone Quality for Automobile and Technical Trend of Comfortable Sound Design

    Takeshi Toi

    自動車音源DVD2008   DVD ( 20084175 )   2008.7

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  • Activities Report of Sound Quality Evaluation Technical Research Committee in Fiscal Year 2006 to 2007

    Takeshi Toi

    自動車音源DVD2008   DVD ( 20084179 )   2008.7

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement

    Akira Kuramori, Masashi Uchiyama, Michiaki Sekine, Hirokazu Tatekawa, Hiroyuki Hoshino, Yoshinori Yakuwa, Jun Yamada, Osamu Maeda, Kazutomo Murakami, Norio Murata, Masayuki Kuboki, Takeshi Toi

    自動車音源DVD2008   DVD ( 20084181 )   2008.7

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  • 21701 Noise Evaluation of Hard Disk Drive in Consideration of Robustness of Motor Excitation Force

    IIZUKA Katsumi, OKUBO Nobuyuki, TOI Takeshi, YAMAMOTO Takeyoshi, JONO Masahiro

    2008 ( 14 )   461 - 462   2008.3

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    Correlations between variance of motor excitation force, distribution of base structural property, and SPL of simple hard disk drive are investigated. In validation, indirectly identified force is used to clarify these correlations. And noise and vibration reduction by structural modification at motor component is proposed. In addition, correlations between assembly specification, excitation force, and SPL of motors are researched by using bracket motor model. Simulation model is also used to predict variance of vibration noise of bracket motor model.

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  • 11703 Prediction of Vehicle Interior Sound Transmitted through Door Seal against Exterior Noise

    IWASAWA Ryo, OKUBO Nobuyuki, TOI Takeshi

    2008 ( 14 )   87 - 88   2008.3

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    In recent vehicle industry, the quiet interior sound when running is one of the additional values. At present, the attention treads from the overall sound to the existence of a local sound and further improvement for quietness is aimed. In this paper, the door seal that is one of the factors when exterior noise is transmitted into interior is focused and the prediction of interior sound is conducted experimentally.

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  • 11704 Noise Reduction in Truck Cabin by Design Change of Floor Panel

    OKUMURA Takeshi, OKUBO Nobuyuki, TOI Takeshi, AKAMA Hiroshi

    2008 ( 14 )   89 - 90   2008.3

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    According to increase of the long time and distance driving, reduction of the noise in cabin is problem as one of the comfort improvement in truck cabin. Many of causes of noise in cabin are vibration (structured borne noise) and emission sound (air borne noise) from engine. Noises for the frequency range about 200-500[Hz] causes air borne are difficult to solve. In this research, by paying attention to vibration characteristic of floor panel that separates engine room and cabin, a structural changing method that can reduce interior noise efficiency is established.

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  • 11705 Identification of Exciting Force for Tire Road Noise due to Road Surface

    SUZUKI Masazumi, OKUBO Nobuyuki, TOI Takeshi, HIMENO Kenji

    2008 ( 14 )   91 - 92   2008.3

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    This paper suggests the identification technique of difference of exciting force in order to evaluate tire road noise due to difference of road surface. First, the vibration state of the object is calculated by use of inverse numerical acoustics from the near-field noise date because it is difficult to measure directly the vibration state of the moving tire. Second, the exciting force is identified from the calculated vibration state and the vibration characteristics of the object.

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  • 21702 Robust Design of Structure with Multiple Uncertain Parts

    ADACHI Tsuyoshi, TOI Takeshi, OKUBO Nobuyuki, MIYAZAWA Yasuhiro, SHIBAKI Toru, KIMURA Yoshinori

    2008 ( 14 )   463 - 464   2008.3

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    Vibration uncertainty due to the uncertainty of parameter can be estimated by using Monte Carlo Simulation. This method enables to choose the most efficient parameter to reduce vibration uncertainty in analysis. Consequently, quality and cost can be designed at the early stage of designing. This paper focuses on the uncertainty of relay joint. At first, reduction of vibration uncertainty is attempted using simple model. And then, the effectiveness of this method is confirmed by application of actual model.

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  • Report of Autumn Technical Meeting of INCE/J 2007

    戸井武司

    騒音制御   32 ( 1 )   63 - 64   2008.1

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  • 平成19(2007)年秋季研究発表会報告

    戸井武司

    騒音制御   32 ( 1 )   63 - 64   2008.1

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  • 126 Sound quality evaluation of electric vehicles and their positions among internal combustion engine vehicles

    YOKOYAMA Kazuki, ASAHARA Yasuyuki, TOI Takeshi

    Symposium on Environmental Engineering   2007 ( 17 )   111 - 114   2007.7

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    Recently, global warming becomes serious problem all over the world. One reason for the greenhouse gas is CO2 in the exhaust gas from automobile. It is necessary to develop high- efficient engine such as hybrid system using internal combustion engine and electric motor or only electric motor. The purpose of this research is to analyze the sound quality of electric vehicles and to estimate their positions among conventional internal combustion engine vehicles. First, subjective evaluations of internal combustion engine and electric vehicle in the case with train and without it are examined by semantic differential method. Then, the specific factors of both cases are extracted by factor analysis. Moreover, the sound quality of the electric vehicle is characterized for next-generation.

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  • 123 Research of comfortable switch sound in consideration of tactile feeling

    KIUCHI Kenji, KOBAYASHI Ayumu, TOI Takeshi

    Symposium on Environmental Engineering   2007 ( 17 )   99 - 102   2007.7

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    Recently, a new added value in addition to a basic performance of a switch for automobile is expected. The purpose of this research is to pay attention to comfortable switch sound in consideration of tactile feeling. First, subjective evaluations of the tactile feeling of the switch and its operation sound are examined by semantic differential method. Then, the common specific factors between the tactile feeling and the operation sound are extracted by factor analysis. Moreover, the specific factors and physical properties such as the input force and its sound pressure level are analyzed to estimate the relationship between subjective evaluation and objective evaluation.

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  • Sound Design of Car Navigation System Invited

    Takeshi Toi

    騒音制御   31 ( 3 )   210 - 214   2007.6

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    DOI: 10.11372/souonseigyo1977.31.210

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00295425267?from=CiNii

  • 21325 Prediction On Vibration Behavior Of Planetary Gear In Narrow Space

    KIDOKORO Masayuki, OKUBO Nobuyuki, TOI Takeshi, UCHINO Toshihide

    2007 ( 13 )   487 - 488   2007.3

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    Recent years, automatic transmission in car is prevailed excellent for safety, and comfort. Planetary gear with complicate behavior is used in gear mechanism and may cause a noise at specific frequency. It is very difficult to measure the vibration directly because of narrow space however it is desired to measure the vibration indirectly to understand the behavior of the Planetary gear. This paper describes the technique for prediction on vibration behavior of Planetary gear that cannot be measured the directly.

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  • 21321 Design on comfortable shutter sound by use of kinematic analysis

    MURAKAMI Soichiro, OKUBO Nobuyuki, TOI Takeshi

    2007 ( 13 )   479 - 480   2007.3

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    First, The correlation of the subjective evaluation and sound metrics is taken into account for shutter sound. And the target that considers person's sensibility is decided. Next, kinematic analysis is performed. The data obtained in kinematic analysis is brought to acoustic analysis, and sound is created. Finally, the sound made from acoustic analysis is evaluated, and design on comfortable sound is achieved.

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  • 21318 Development of Acoustic Model for Automobile Interior in Consideration of Seat and Riding Person

    NISHIDA Shu, OKUBO Nobuyuki, TOI Takeshi

    2007 ( 13 )   473 - 474   2007.3

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    In this paper paying attention to the automobile seat and riding person, technique of acoustic analysis on acoustic material is examined based on the hybrid method of the experiment and the analysis. These are concretely analyzed by setting acoustic impedance to the boundary condition. Finally, sound field of semi-anechoic room assumed as automobile interior can be designed by development of acoustic model for automobile interior in consideration of automobile sea and riding

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  • 21116 Prediction on Vibration and Electromagnetic field of Motor

    NARUKAMI Hisakazu, OKUBO Nobuyuki, TOI Takeshi

    2007 ( 13 )   447 - 448   2007.3

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    Natural frequency of each motor component and electromagnetic field in axial gap type fan motor are investigated by modal analysis and measurement of magnetic flux density under operating condition. And, electromagnetic excitation force reproduced by using electromagnetic field analysis and structure analysis are used to predict vibration response under operating condition. In addition, noise and vibration reduction by structural modification in component of motor is proposed.

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  • 車室内走行騒音下における明瞭なカーナビゲーション操作音の研究

    木内 賢二, 戸井 武司

    聴覚研究会資料   36 ( 8 )   683 - 687   2006.11

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  • 超音波素子の計測・解析手法による発音メカニズム解明

    安武憲太郎, 酒井新一, 塩澤安生, 戸井武司, 鎌倉知男

    MEEエンジニア   51 ( 51 )   8 - 13   2006.11

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  • Machinery Vibration Invited

    戸井武司

    騒音制御   30 ( 4 )   299 - 300   2006.8

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  • 発生源低騒音化手法の開発

    白石英孝, 上原律, 戸井武司

    埼玉県環境科学国際センター報   ( 6 )   142 - 143   2006.6

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  • 快適な音環境を創造する快音化

    戸井武司

    青淵   687 ( 6 )   24 - 26   2006.6

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  • Creation of Tone Quality for Automobile and Technical Trend of Comfortable Sound Design Invited

    Takeshi Toi

    Automotive Engineers   60 ( 4 )   12 - 17   2006.4

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  • 20720 Modeling of Stretch Reflex Response Characterized for Measurement of Distal Leg Linear Speed

    MINAMI Takuhei, TOI Takeshi, OKUBO Nobuyuki, MAMIZUKA Naotaka, SAKANE Masataka, OCHIAI Naoyuki

    2006 ( 12 )   499 - 500   2006.3

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    Based on the measurement of distal leg linear speed, a numerical model of stretch reflex response is created. The hammer input force is transferred into quandiceps and biceps force through nerve system. Then through leg system the absolute velocity can be predicted. By adjusting gains and delays of nerve and leg system, various velocity wave form can be generated for further investigation of stretch reflex response.

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  • 20701 Robust Vibration Design for Automobile Suspension Based on Uncertainty Analysis

    TSUTSUMI Jun, TOI Takeshi, OKUBO Nobuyuki

    2006 ( 12 )   461 - 462   2006.3

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    Based on repeated FRF measurements, the parameter uncertainty can be determined in function of resonance frequency sensitivity with respect to bolt spring stiffness. A new method is proposed to reduce such uncertainty by use of amplitude sensitivity. A simple beam model and real automobile suspension are applied to verify the new method for robust vibration design.

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  • 20702 Optimal Excitation in Highly-accelerated Life Test

    KATO Kazuya, OKUBO Nobuyuki, TOI Takeshi, Murakami Mituo, KAKUMA Hideaki

    2006 ( 12 )   463 - 464   2006.3

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    The Highly-accelerated Life Test (HALT) becomes popular to design the destruct margine in life test. But due to the directionality of breakage of product, an uniform excitation is necessary to guarantee the accuray of test. In this paper, a new approach is proposed to find the optimal dimension, excitation timing and excitation angle. Numerical FE models and actual plate are used to verify the approach.

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  • 20703 Detective Diagnosis of Spur Gear in Consideration of Dynamic Characteristic of Gear Device

    MORIMOTO Kazuhiko, OKUBO Nobuyuki, TOI Takeshi, OKUMURA Tsuyoshi

    2006 ( 12 )   465 - 466   2006.3

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    The machine diagnosis based on vibration measurement and analysis faces the new practical phase of signal analysis method that is superior to aural objectivity by good use of advanced signal analysis technology. The defective gear existed in the rotating machine as a diagnosis target can be identified by the feature quantity of each factor and the overall judgment should be needed. In this paper the determination method for the best vibration sensor position in the diagnosis is purposed and the relation between the vibration characteristic of various defective gears and the extracted feature quantity is grasped. Also it is concluded that the dynamic characteristic of gear device should be taken into account.

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  • 20717 Comfortable car interior sound due to automotive glass

    Shirasawa Masahiro, Toi Takeshi, Okubo Nobuyuki, Takabayashi Toru, Sato Katsuhito, Nishihama Jiro

    2006 ( 12 )   493 - 494   2006.3

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    The car interior sound can be categorized into transmitted, structural and reflect noise and influenced by glass. First comfortable sound can be defined by SD method and sound metrics. The influence by glass is verified by real car test and a simple model with respect to boundary condition change. A numerical coupling analysis of glass vibration and interior sound field is carried out to reveal the reason for improvement.

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  • サイドブランチによる車室内の静音化

    大野真弘, 朴成鋒, 大久保信行, 戸井武司

    東急車輛技報   55 ( 55 )   34 - 42   2005.12

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  • 発生源低騒音化手法の開発

    白石英孝, 上原律, 戸井武司

    埼玉県環境科学国際センター報   ( 5 )   76   2005.6

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  • 21209 Development of indirect force measurement technique with synthesized FRF

    SHIMAMURA Satoru, TOI Takeshi, OKUBO Nobuyuki, KONDOU Masahiko

    2005 ( 11 )   439 - 440   2005.3

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    The conventional force identification is carried out to measure the vibration responses under operation multiplied by the inverse of the FRF matrix between excitation point and monitoring point beforehand. However this FRF matrix measurement becomes time and cost consuming. In this paper a new technique is proposed by good use of synthesized FRF based on ordinary modal testing. In order to determine the optimum monitoring points, a new index is defined and successfully applied to numerical and experimental modal.

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  • 21208 Identification of Relative Transient Force Generated in Orbit Scroll Type Compressor and Noise Reduction

    MIYAKAWA Takayuki, TOI Takeshi, OKUBO Nobuyuki, KUMAZAWA Takeshi, SAWADA Hirotaka

    2005 ( 11 )   437 - 438   2005.3

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    Under operational condition of orbit scroll type compressor, a transient vibration and noise are apt to be generated due to collision between fixed and rotating orbit scroll surface with narrow clearance, which causes relative transient force. In order to reduce such vibration and noise, where and how the relative transient force is generated should be identified. By using a simple model, the relative transient force can be identified in time domain by inverse relative FRF matrix multiplied with response under operational condition. Then the method is applied to actual orbit scroll type compressor.

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  • 21201 Improvement of Driving Control in Hybrid Testing Method

    Takahashi Daisuke, TOI Takeshi, OKUBO Nobuyuki

    2005 ( 11 )   423 - 424   2005.3

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    Hybrid Testing Method is becoming a powerful tool to be able to evaluate experimentally the dynamic behavior of a component when assembled into the system, based on modal model of the component and FE model of the rest. However the accuracy of driving control to generate the objective vibration is much influenced by nonlinearity such as gap vibration. Therefore a new compensation method is proposed and successfully applied to a simple vehicle model.

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  • 21203 Prevention of Blurred Image of Digital Camera against Hand Vibration

    Sasamoto Hiroshi, TOI Takeshi, OKUBO Nobuyuki

    2005 ( 11 )   427 - 428   2005.3

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    In recent years, blurred image by hand vibration has been a problem due to increased magnification of a digital camera. Since the conventional blurred compensation is performed by only the gyroscope sensors, it is only valid for rotation vibration. However the actual hand vibration includes not only the rotation but also the displacement vibration. In this paper, how to locate the optimal displacement sensors and to compensate the blurred image are discussed using actual digital camera.

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  • Research on Form of the Bell and Sound Quality Tuning

    CUI Chenghao, OKUBO Nobuyuki, TOI Takeshi, KOIZUMI Toshihiro

    2005 ( 1 )   577 - 578   2005.3

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  • Development of Sound Quality Evaluation Techniques Based on Human Perception

    HIRANO Fuyuko, OKUBO Nobuyuki, TOI Takeshi

    2005 ( 1 )   383 - 384   2005.3

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  • Investigation of the Influence of Ultrasound using Physiological Responses

    35 ( 1 )   19 - 23   2005.1

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  • 718 Triaxial accelerometer and instrumented hammer system for quantification of stretch reflex

    MAMIZUKA Naotaka, MINAMI Takuhei, TOI Takeshi, OKUBO Nobuyuki, SAKANE Masataka, KANEOKA Koji, OCHIAI Naoyuki

    Dynamics & Design Conference   2004   "718 - 1"-"718-4"   2004.9

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    The technique for quantifying stretch reflex allowing multi degree of freedom movement was developed. Measurements are made from a triaxial accelerometer and an instrumented hammer with force sensor system. Stretch reflex dynamics were estimated using the recorded tapping force and the lower leg velocity. The input-output properties of system relating the reflex velocity were characterized using several measures : time delay (Td), reflex acceleration time (Ta), peak leg velocity (Vp), peak tapping force (Fp), peak reflex velocity-peak tapping force ratio (Vp/Fp). These parameters showed repeatability and to help characterize neuromuscular dynamics of stretch reflex. This technique may be also utilized as an educational tool in the medical field.

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  • Development of Prediction Method for Building Structure Borne Sound using Statistical Energy Analysis

    UEHARA Hiroshi, OKUBO Nobuyuki, TOI Takeshi, SASE Toshitsugu, ISHIWATA Takayuki

    Symposium on Environmental Engineering   2004 ( 14 )   100 - 103   2004.7

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    In this paper, it aimed at the thing to propose the prediction method of noise and vibration in a ferroconcrete structure by using Statistical Energy Analysis (SEA) from test/analysis Frequency Response Function (FRF) data. This method carries out by the following process; (1)The SEA parameters were calculated by test/analysis FRF data, (2)Estimated energy responses between subsystems were calculated by using the SEA parameters, (3)Predicted velocity responses were estimated in a subsystem, and (4)Predicted velocity converts to sound pressure. As a result, sound pressures could be predicted by this method with few errors.

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  • Development of toilet jet sound based on sound quality evaluation

    NISHIJIMA Yasuko, OKUBO Nobuyuki, TOI Takeshi, SHIGEFUJI Hiroshi, SHIMIZU Takeshi

    Symposium on Environmental Engineering   2004 ( 14 )   73 - 76   2004.7

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    A rest room is required in comfortable living space. There's a tank less toilet going around because a space is excluded recently. But toilet jet that is specific for tank less toilet becomes a problem for the living environment noise. So this paper describes the improvement of sound quality of toilet jet. An acrylic board model is made for taking a picture of the flushing mechanism by a high-speed video camera. It is found that the jet noise generates many bubbles involved in water current, and in order to reduce noise, the form of a nozzle is changed. For the result is evaluated, the relationship between sound quality of toilet jet and human sensation is investigated by using sound metrics and vital data.

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  • 日経ムック「変革する大学」シリーズ 中央大学

    戸井武司

    72 - 76   2004.7

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  • 発生源低騒音化手法の開発

    白石英孝, 上原律, 上原宏史, 戸井武司

    埼玉県環境科学国際センター報   ( 4 )   93   2004.6

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  • Collection of Automotive Sound Samples and Storing on Compact Disc

    Takeshi Toi

    2004.5

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  • Automotive Sound Quality Database and Analysis of Correlation between Subjective and Objective Rating

    Toshikazu Sato, Yasuo Ishii, Hiroshi Uehara, Hisami Oishi, Michinari Okazaki, Kiyokazu Ogawa, Toshiharu Sato, Hirohiko Shibuya, Masafumi Tanaka, Koichi Hirata, Kazufumi Toriya, Manabu Minorikawa, Hirokazu Tatekawa, Kazuhiro Nakashima, Takeshi Toi, Masao Ishihama

    自動車音源CD(DVD版)   DVD,20044494   2004.5

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  • Study of International Relations of Automotive Sound Quality

    Takeshi Toi, Hiroshi Isoyama, Yoichi Ogu, Haruki Saito, Hiroyuki Hoshino, Masao Ishikawa, Masayuki Ishizuka, Hiroshi Okamura, Takeo Hashimoto, Sota Otsuka, Takuya Shinoda, Masao Ishihama

    自動車音源CD(DVD版)   DVD, 20044495   2004.5

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  • Simulation Techniques for Realization of Comfortable Sound Environment

    Takeshi Toi

    自動車音源CD(DVD版)   DVD, 20044486   2004.5

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  • Collection of Automotive Sound Samples and Storing on Compact Disc

    Takeshi Toi

    自動車音源CD(DVD版)   DVD, 20044488   2004.5

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  • Activities Report of Sound Quality Evaluation Technical Research Committee

    Takeshi TOI

    2004.5

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    Takeshi TOI

    自動車音源CD(DVD版)   DVD,20044496   2004.5

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  • Automotive Sound Quality Database and Analysis of Correlation between Subjective and Objective Rating

    Toshikazu Sato, Yasuo Ishii, Hiroshi Uehara, Hisami Oishi, Michinari Okazaki, Kiyokazu Ogawa, Toshiharu Sato, Hirohiko Shibuya, Masafumi Tanaka, Koichi Hirata, Kazufumi Toriya, Manabu Minorikawa, Hirokazu Tatekawa, Kazuhiro Nakashima, Takeshi Toi, Masao Ishihama

    2004.5

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  • Study of International Relations of Automotive Sound Quality

    Takeshi Toi, Hiroshi Isoyama, Yoichi Ogu, Haruki Saito, Hiroyuki Hoshino, Masao Ishikawa, Masayuki Ishizuka, Hiroshi Okamura, Takeo Hashimoto, Sota Otsuka, Takuya Shinoda, Masao Ishihama

    2004.5

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  • Simulation Techniques for Realization of Comfortable Sound Environment

    Takeshi Toi

    2004.5

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  • Vehicle Component Test in Consideration with Actual Running Environment

    LI Wenbin, TOI Takeshi, OKUBO Nobuyuki

    2004 ( 10 )   253 - 254   2004.3

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    Vehicle component test of automobile is very important at early design stage to provide in-sight consideration of durability in terms of dynamic strain concentration. Based on the fact that the dynamics of component solely is different from those of system, a new strain sensitivity analysis is proposed to give proper mass addition applied to component, which provides same strain concentration as the system.

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  • Development of Micro Modal Testing System

    KOBAYASHI Shinya, TOI Takeshi, OKUBO Nobuyuki, KAKUMA Hideaki, SUZUKI Kazuyuki

    2004 ( 10 )   251 - 252   2004.3

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    The structural modification prediction is very useful based on FRF. But in case of micro devices, the conventional exciter gives additional constraint and mass loading. First using MEMS like structure, the alternative displacement input can not predict properly is confirmed numerically and experimentally. Then a new micro exciter is so developed as to apply successfully to DVD pickup.

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  • Accurate Modeling of Connecting Part for Component Synthesis

    KATSUTA Ken, TOI Takeshi, OKUBO Nobuyuki

    2004 ( 10 )   265 - 266   2004.3

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    The dynamic behaviors at connecting part is very important for component synthesis of flexible structure like satellite. Two beam structure is used for accurate modeling at connecting part to approximate by translational and rotational springs. This method is applied to a satellite model and appropriate connecting part is predicted to shift the objective natural frequency.

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  • Introduction to comfortable sound designs for product designers, Recommendation of comfortable sound designs and the procedures

    Takeshi Toi

    Machine design   48 ( 2 )   36 - 45   2004.2

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  • Simulation Techniques for Realization of Comfortable Sound Environment

    Takeshi Toi

    Journal of Society of Automotive Engineers of Japan   57 ( 7 )   104 - 108   2003.7

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  • 発生源低騒音化手法の開発

    白石英孝, 上原宏史, 戸井武司

    埼玉県環境科学国際センター報   ( 3 )   102   2003.6

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  • 流体騒音を考慮した音響シミュレーション技術

    戸井武司

    ターボ機械   31 ( 5 )   31 - 37   2003.5

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  • 衝撃音の音質評価と快音設計

    戸井武司

    超音波TECHNO   15 ( 3 )   97 - 100   2003.5

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  • Investigation of sound quality evaluation by drum specification

    TOKUNAGA Tomohiko, OKUBO Nobuyuki, TOI Takeshi

    2003 ( 1 )   821 - 822   2003.3

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  • The tone quality design of the bell by the form change using the sound simulation

    TOKUNAGA Tomohiko, SHIMAMINE Tetsuya, OKUBO Nobuyuki, TOI Takeshi

    2003 ( 1 )   819 - 820   2003.3

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  • Effective usage of tester for magnetic disk head

    YOSHIDA Kenichi, TOI Takeshi, OKUBO Nobuyuki

    2003 ( 9 )   395 - 396   2003.3

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    This paper describes how to effectively use a tester for magnetic disk head. Due to difficulty in measuring a lot of points at disk head, a method is developed to represent virtually the vibration at unmeasureable points. In order to provide consistent evaluation, a compensation method is proposed.

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  • Development of vibration reduction method for ultra precision machine due to acoustic excitation

    Mikami Fumitaka, Toi Takeshi, Okubo Nobuyuki

    2003 ( 9 )   397 - 398   2003.3

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    An ultra precision machine, such as semiconductor stepper should prevent from nm order level of vibration, which is generated by acoustic excitation due to inside cavity resonance. Two methods are proposed, to add a mass at inner structure by extended sensitivity analysis or to place a cover plate to reduce the acoustic excitation. Experiment on simple structure verifies the proposed methods.

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  • Development of Noise and Vibration Simulator under Actual Running Condition for Vehicle Loaded Equipment

    TAKAKU Akiko, OKUBO Nobuyuki, TOI Takeshi

    2003 ( 9 )   399 - 400   2003.3

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    This paper describes a development of simulator for noise and vibration of vehicle installed equipment under actual running condition. A compensation coefficient is proposed to convert multi axes simulation signal to single axis and confirmed by using single axis exciter with sinusoidal single instead of different frequencies in three axes. Moreover a signal of actual running vehicle is validated by numerical and experimental model correctly.

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  • Force identification and vibration reduction of body in hybrid car

    YUKAWA Tomohiro, TOI Takeshi, OKUBO Nobuyuki

    2003 ( 9 )   401 - 402   2003.3

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    This paper describes the technique for force identification and vibration reduction of body in hybrid car. Nowadays, the hybrid car that can realize improvement in fuel consumption and a clean exhaust gas attracts attention. The hybrid engine system has two forces, a gasoline engine and a motor, and therefore the direction of resultant force of hybrid system changes with the influences of a motor. This research identifies force of hybrid system, and suitable structural modification using beat sensitivity analysis function to reduce vibration.

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  • 生活の身近にある「音」に惹かれさまざまな面からアプローチ

    戸井武司

    中央大学理工学部研究室ルポ,21人のナビゲータ   32 - 35   2002.7

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  • 発生源低騒音化手法の開発

    白石英孝, 堀川敦, 戸井武司

    埼玉県環境科学国際センター報   ( 2 )   90   2002.5

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  • 問題の本質を見極めCAEは解析ツールとして徹底活用、解析結果の評価ができるエンジニアになる

    戸井武司

    日経デジタル・エンジニアリング   ( 53 )   88 - 89   2002.5

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  • Development of Sound Quality Design Technique of Air-Conditioning Outdoor Unit

    HORIKAWA Atsushi, OKUBO Nobuyuki, TOI Takeshi, KUMAZAWA Takeshi

    2002 ( 1 )   755 - 756   2002.3

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  • Investigation of application for sound field of Statistical Energy Analysis

    OZONE Takashi, OKUBO Nobuyuki, TOI Takeshi, HASEGAWA Tomomi, YOSHIDA Minoru, ISHIHARA Hiroyuki, KOYANO Shinji

    2002 ( 1 )   817 - 818   2002.3

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  • Research of Damage Detection System Based on Acoustic Mode

    FUJIKAWA Kouhei, OKUBO Nobuyuki, TOI Takeshi

    2002 ( 1 )   835 - 836   2002.3

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  • Development of sound quality improvement method for sewing machine based on sound quality evaluation

    TAKI Kenji, OKUBO Nobuyuki, TOI Takeshi, OKAWA Shigeki

    2002 ( 1 )   753 - 754   2002.3

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  • Development of Vibration Realization Approach

    Kato Hiroshi, Toi Takeshi, Okubo Nobuyuki

    2002 ( 8 )   321 - 322   2002.3

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    The realization of vibration realization response of machine used in different environment, for instance, in water is very difficult in terms of cost etc., therefore a new approach should be developed to excite the machine in air. First the conventional virtual input approach to a djust the input force is not appropriate and then the structural modification of mass addition in air is adopted to provide more accurate realization in water.

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  • Development of Dynamic Displacement Amplification Mechanism by use of Piezo Actuator

    Abe Takahiko, TOI Takeshi, OKUBO Nobuyuki

    2002 ( 8 )   323 - 324   2002.3

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    A new dynamic displacement amplification mechanism is proposed to generate vertical axis motion by use of piezo actuator. The structure consists of cantilever part and vertical part which can compensate the radial motion causing less hole accuracy. Numerical analyses and experiments show satisfactory results.

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  • 初心者のための連成解析入門(振動解析→機構解析)

    戸井武司

    機械設計   46 ( 3 )   43 - 50   2002.2

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  • 発生源低騒音化手法の開発

    堀川敦, 戸井武司, 白石英孝

    埼玉県環境科学国際センター報   ( 1 )   70   2001.5

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  • 315 Identification and Reduction of Impulsive Noise of Construction Machinery under Dumping Operation

    Itabashi Junji, Okubo Nobuyuki, Toi Takeshi, Imamura Kazuya

    2001 ( 7 )   101 - 102   2001.3

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    This paper describes a prediction method to reduce impulsive noise of construction machinery under dumping operation. This method consists of three phases; first identification of noise sources using principal component analysis, second predicton of radiated noise using structual finite element method and acoustic boundary element method, finaly damping simultion to install in damping material for noise. This method is vertified by simple model experimentally.

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  • 310 Development of Subsystem Modeling Method Using Statistical Energy Analysis : 1st Report, Study on Dividing System

    FURUYA Yoshiaki, OKUBO Nobuyuki, TOI Takeshi, NAKAZONO Kenji

    2001 ( 7 )   91 - 92   2001.3

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    This paper describes the technique of defining subsystem model in Experimental Statistical Energy Analysis (ESEA). SEA is applied to investigate the vibro-acoustic behavior of industrial structures like cars, trains, aircrafts and the others with high modal density and overlap in the middle and high frequency range. The structure is divided into subsystems complying with the SEA basic assumption: the structure must be divided in weakly coupled subsystems. In case of complex structure, many subsystems are defined and the large amount of measurement is required. This research proposes the effective method of subsystem modeling. The 1st report shows the simplifying technique in consideration of predicting accuracy and the dividing method based on measured internal loss factor of car body.

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  • 420 Design Method to Designate the Stress at the Specific Part

    INABA Takashi, TOI Takeshi, OKUBO Nobuyuki

    2001 ( 7 )   385 - 386   2001.3

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    This study describes the design method to designate the stress at the specific part. The three processes to designate the stress at the specific part are proposed. First, using the cantilever beam with circular cross section, structural modification is done by using the explicit stress. Second, using the more complex model, structural modification is done by using the calculated stress by total FE model. Third, structural modification is done by using measured stress by experiment in conjunction with FE model of specific part.

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  • 728 Identification Method of Rolling Bearing Defects in Rotating Machinery

    CHIBA Naoki, Dutt Jayanta Kumar, TOI Takeshi, Okubo Nobuyuki

    2001 ( 7 )   433 - 434   2001.3

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    This paper describes an identification method of rolling bearing defects in rotating machinery. At first problems of identification using only vibration response are discussed. This paper describes a new identification method identify force generated by bearing defect using vibration response and frequency response function. And then to identify location of defective bearing is also proposed. This provides a decision method of best measurement points. Finally reduction of measurement points using pseudo inverse matrix is achieved.

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  • 311 Development of Subsystem Modeling Method Using Statistical Energy Analysis : 2nd Report, Study on Defining Subsystem Network

    FURUYA Yoshiaki, OKUBO Nobuyuki, TOI Takeshi, NAKAZONO Kenji

    2001 ( 7 )   93 - 94   2001.3

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    This paper describes the technique of defining subsystem model in Experimental Statistical Energy Analysis (ESEA). SEA is applied to investigate the vibro-acoustic behavior of industrial structures like cars, trains, aircrafts and the others with high modal density and overlap in the middle and high frequency range. The structure is divided into subsystems complying with the SEA basic assumption: the structure must be divided in weakly coupled subsystems. In case of complex structure, many subsystems are defined and the large amount of measurement is required. This research proposes the effective method of subsystem modeling. The 2nd report shows the defining subsystem network for good prediction at the target subsystem. This technique can be improved to predict the noise and vibration of car body.

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  • Evaluation of sound quality and investigation of noise source for household sewing machine

    TAKI Kenji, OKUBO Nobuyuki, TOI Takeshi, OKAWA Shigeki

    2001 ( 1 )   745 - 746   2001.3

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  • Development of Acoustic Design Method for Bell in Consideration of Permissible Shape Tolerance

    KUMAZAWA Yoshifumi, OKUBO Nobuyuki, TOI Takeshi, NISHIKAWA Minoru

    2001 ( 1 )   687 - 688   2001.3

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  • Development of Prediction and Reduction Method of Airflow noise for Automobile Exhaust System

    OHTSUKI Shinji, OHKUBO Nobuyuki, TOI Takeshi, NAKAJIMA Michio

    2001 ( 1 )   763 - 764   2001.3

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  • Sound Quality Improvement on Transient Sound Generated by Operating Shutter of Camera Based on Mechanism Design

    KAZEHAYA Satoshi, OKUBO Nobuyuki, TOI Takeshi

    2001 ( 1 )   747 - 748   2001.3

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  • 振動計測の技術向上と計測応用技術

    戸井武司

    振動技術   3   11 - 17   2001.3

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  • 平成12年度科学研究費補助金(特別研究員奨励費)実績報告書(研究実績報告書)

    戸井武司

    2001.1

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  • Consensus statement on sustainable use of transgenic rice for pest management

    KANEDA Shinji, TOI Takeshi, OKUBO Nobuyuki

    Molecular Breeding   7   99 - 100   2001

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    This study describes design method for nonlinear vibration reduction of Audio Visual Apparatus mounted on Automobile due to gap vibration, which causes reading error. First, the mechanism of gap vibration is analyzed by modal analysis. Second, which gap parts play important role is identified using real time animation. Finally based on sensitivity analysis with paying attention to gap vibration characteristics, the gap vibration can be reduced and the improvement of reading error is achieved.

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  • Sensitivity analysis and its application for dynamic improvement Invited Reviewed

    N Okubo, T Toi

    SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES   25 ( 3 )   291 - 303   2000.6

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    In order to determine appropriate points where natural frequency or mode shape under consideration can be effectively modified by structural modification, the theoretical background of sensitivity analysis is described, followed by experimental verification with a simple structure. Then it can be extended to (1) operational deflection shape, where a problem arises at off-resonance frequency, (2) relative motion, (3) transmitted force through connecting points between components, (4) servo system, which consists of electrical elements with mechanical elements, and (5) acoustics generated by the vibration of the structure. To illusrate its effectiveness, many actual examples are given.

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  • モータ設置条件変更による振動および騒音の低減

    高久 智之, 大久保 信行, 戸井 武司

    精密工学会大会学術講演会講演論文集   2000 ( 1 )   48 - 48   2000.3

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  • 平成11年度科学研究補助金(特別研究員奨励費)実績報告書(研究実績報告書)

    戸井武司

    2000.3

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  • 音の環境と制御技術 モード解析による低減設計

    戸井武司, 大久保信行

    1 ( 第8章 )   485 - 534   2000.2

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  • 身近な音について

    戸井武司

    草のみどり   ( 125 )   72 - 75   1999.5

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  • Noise Prediction of Refrigerator in Consideration of Layout Environment and Sound Design Based on Sound Quality Evaluation

    HANAOKA Shou, OKUBO Nobuyuki, TOI Takeshi

    1999 ( 1 )   643 - 644   1999.3

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  • Acoustic Modeling Method and Prediction of Vehicle Exhaust System

    MATHUSHIGE E., OKUBO N., TOI T., KURATA S.

    1999 ( 1 )   653 - 654   1999.3

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  • Development of Modeling Method for Noise Source in Engine Room

    WATANABE Rin, OKUBO Nobuyuki, TOI Takeshi

    1999 ( 1 )   651 - 652   1999.3

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  • Development of Comfortable Sound Environment in Car Cabin with Audio Equipment

    SATO M., OKUBO N., TOI T., KUROIWA H., CHIKATSU M.

    1999 ( 1 )   645 - 646   1999.3

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  • Acoustic Modeling Method of Air Conditioner Using Virtual Sound Source in Living Space

    FUNAMOTO Noriaki, OKUBO Nobuyuki, TOI Takeshi, YOKOMIZO Yukio

    1999 ( 1 )   649 - 650   1999.3

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  • 減衰が不均一に分布する自動車サスペンションの高精度モデルの構築

    佐藤 満, 戸井 武司, 大久保 信行

    精密工学会大会学術講演会講演論文集   1998 ( 2 )   257 - 257   1998.9

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  • 解析ツールを用いた振動・音解析

    戸井武司, 大久保信行

    騒音制御   22 ( 5 )   248 - 254   1998.5

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    DOI: 10.11372/souonseigyo1977.22.248

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    Other Link: https://jlc.jst.go.jp/DN/JALC/00055860345?from=CiNii

  • 精密機器における振動低減のための最適構造設計

    清水 孝悌, 戸井 武司, 大久保 信行

    精密工学会大会学術講演会講演論文集   1998 ( 1 )   241 - 241   1998.3

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  • Sound Design for Impulsive Radiated Sound of Mechanical Structure Based on Structural Modification

    MURAKAMI Taro, TOI Takeshi, OKUBO Nobuyuki

    1998 ( 1 )   777 - 778   1998.3

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  • Noise Prediction and Sound Quality Evaluation of Structure with High-Speed Rotating Components by Estimation of Acoustic Excitation Force

    KATO Eisuke, OKUBO Nobuyuki, TOI Takeshi

    1998 ( 1 )   753 - 754   1998.3

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  • Prediction of Transient Noise and Evaluation of Sound Quality of Large-sized Refrigerator in Consideration of Setting Environment

    HANAOKA Shou, OKUBO Nobuyuki, TOI Takeshi, FUJIWARA Susumu

    1998 ( 1 )   755 - 756   1998.3

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  • Sensitivity Analysis and Its Application for Dynamic Improvement Reviewed

    Nobuyuki OKUBO, Takeshi TOI

    International Winter School on Optimum Dynamic Design using Modal Testing and Structural Dynamic Modification,   219 - 232   1997.12

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  • 構造変更の評価のための自転車乗り心地シミュレータの開発

    坂本 佳隆, 戸井 武司, 大久保 信行, 芦田 浩規, 鳴尾 丈司, 佐藤 文宣

    精密工学会大会学術講演会講演論文集   1997 ( 1 )   913 - 914   1997.3

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  • Noise Reduction of Precision Visual Equipment using Numerical Model in Consideration of Transfer Paths

    TAKAKURA Ryusuke, TOI Takeshi, OKUBO Nobuyuki, KIKUCHI Shigeki

    1997 ( 2 )   743 - 744   1997.3

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  • Predicted and Virtual Replay of Noise for Gas Burning Water Heater in Consideration of Temperature Distribution in the Combustion Chamber.

    YAJIMA Toshihide, TOI Takeshi, OKUBO Nobuyuki, MATSUBARA Kenichi, ISEKI Takaya

    1997 ( 2 )   733 - 734   1997.3

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  • 相対変位感度を利用した精密機器の主機能部の低振動化

    村瀬 芳典, 戸井 武司, 大久保 信行

    精密工学会大会学術講演会講演論文集   1996 ( 1 )   441 - 442   1996.3

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Presentations

  • Study on the behavior at take-over request of elderly and young people in consideration of the difference in workload of secondary activities

    Kenta Isobe, Yoko Kato, Michiaki Sekine, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Realization of language image and correspondence with physical indicators of sound

    Kazuki Kurose, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Evaluation of the impressions of operating sound and tactile focusing on the number of clicks of rotary switches

    Hayato Hirosawa, Toru Miyairi, Hisato Shimomura, Takeshi Shirasaka, Takashi Otomo, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Effect of Modulation of Diesel Engine Combustion Noise on Comfort

    Yukihiro Takeda, Eisui Hoshino, Haruki Saito, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Effect of Modulation of Engine rotation order on Comfort

    Eisui Hoshino, Yukihiro Takeda, Haruki Saito, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • mprovement of intellectual productivity by machine operation noise considering work difficulty level

    Kyosuke Ishikawa, Daisuke Matsumoto, Juyoun Lee, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Improvement of shifting operation feeling considering shifter type and driving scene

    Yoshihiro Igarashi, Shusaku Shimizu, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Creation of a comfortable shift feeling by adding sound and operating characteristics with consideration of the driving intention

    Shusaku Shimizu, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Construction of sound quality evaluation model based on machine learning in consideration of auditory threshold in pump operating sound

    Yuta Goto, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Pure tone cognition evaluation by using broad-band noise in and out of the critical band

    Tatsuya Kanazawa, Kazuma Shibahashi, Soichiro Tanabe, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Pure tone cognition evaluation by considering the frequency gradient of broad-band noise

    Kazuma Shibahashi, Tatsuya Kanazawa, Soichiro Tanabe, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Creation of the comfortable keyboard operation feeling in considering the preference of the operator and the operation scene

    Kei Fujikura, Takeshi Toi

    日本音響学会講演論文集  2022.3  Acoustical Society of Japan

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  • Construction of a Feeling of Comfortable Shifting Depending on a Shifting Operation Change by the Driving Intention

    Shusaku Shimizu, Takeshi Toi

    2021年秋季大会学術講演会予稿集  2021.10  Society of Automotive Engineers of Japan

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  • Effect of Secondary Activity During Automated Driving on Safety of Take-over (First Report) - Consideration on classification of secondary activities and quantification of their workload -

    Michiaki Sekine, Yoko Kato, Megumi Enomoto, Kenta Isobe, Takeshi Toi

    2021年秋季大会学術講演会予稿集  2021.10  Society of Automotive Engineers of Japan

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  • Effect of Secondary Activity During Automated Driving on Safety of Take-Over (Second Report) - Investigation of Take-over Time and Subsequent Behavior by Driving Simulator Experiment -

    Yoko Kato, Michiaki Sekine, Megumi Enomoto, Kenta Isobe, Takeshi Toi

    2021年秋季大会学術講演会予稿集  2021.10  Society of Automotive Engineers of Japan

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  • Onomatopoeic Expression for Rotary Switch Operating Feelings Composed of Tactile Sensation and Operation Sound

    Toru Miyairi, Hisato Shimomura, Takeshi Shirasaka, Takeshi Toi

    日本音響学会講演論文集  2021.9  Acoustical Society of Japan

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  • Creation of the Comfortable Keyboard Operation Feeling in Consideration of the Preference of the Operator

    Kei Fujikura, Takeshi Toi

    日本音響学会講演論文集  2021.9  Acoustical Society of Japan

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  • Behavior Evaluation Based on the Difference of the Secondary Activity and Warning Sound at Takeover Request

    Kenta Isobe, Takeshi Toi

    日本音響学会講演論文集  2021.9  Acoustical Society of Japan

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  • Understanding the Relationship between Onomatopoeic Expressions and Sound Quality for Rotary Switch Operating Sounds International conference

    Toru Miyairi, Takeshi Shirasaka, Hisato Shimomura, Takeshi Toi

    Proc. of INTER-NOISE 2021  2021.8  International Institute of Noise Control Engineering

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  • Construction of Comfortable Sound Model Based on Selection of Sound Source Features by Machine Learning

    Yuta Goto, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Evaluation of rotary switch operation feeling by onomatopoeia expression

    Toru Miyairi, Mai Segawa, Hisato Shimomura, Takeshi Shirasaka, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Creation of Engine Sound that Gives a Feeling of Acceleration According to the Intention to Accelerate

    Shusaku Shimizu, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Creation of Keyboard’s Operation Felling According to Playing Condition

    Kei Fujikura, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Model Building Based on Hearing and Vision for Appetite

    Kazuki Kurose, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Improvement of Operational Feeling by Sound and Vibration in Automatic or Manual Gear Shifting Mode

    Eriko Nojima, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Relationship between Event-related Potentials and Auditory Lateralization Ability in the Elderly,

    Moeko Shiroki, Kazumoto Morita, Sunao Iwaki, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Study on Spatial Impression Changes by Reverberation Design

    Soma Maezaki, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • The Selection of Warning Sounds Corresponding to the Degree of Workload of the Secondary Activity

    Kenta Isobe, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Comfortable Sound Design of Diesel Engine Combustion Noise Based on Sound Pressure Fluctuation of Variation among Cylinders

    Yusuke Toda, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Evaluation of Operation Sound Considering Physical Characteristics of Rotary Switch

    Mai Segawa, Toru Miyairi, Hisato Shimomura, Takeshi Shirasaka, Takeshi Toi

    日本音響学会講演論文集  2021.3  Acoustical Society of Japan

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  • Influence of Sound and Vibration in Automatic or Manual Gear Shifting Mode

    Eriko Nojima, Shûsaku Shimizu, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Study on Driver’s Maintaining Arousal by Listening to Music

    Nobuaki Minami, Shin-ichi Shikii, Koki Takahashi, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Influence of Aging on Auditory Lateralization Ability by Changing Signal Onset

    Moeko Shiroki, Kazumoto Morita, Kazuki Kurose, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Impression Evaluation of Diesel Combustion Noise Based on Features of Variation among Cylinders

    Yusuke Toda, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Construction of Estimation Model for Feeling Acceleration of Hybrid Vehicles Focused on Acoustic Characteristics

    Kohei Motoki, Masumi Odagiri, Takeshi Takahashi, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Influence of Sound and Vibration in Automatic or Manual Gear Shifting Mode

    Takafumi Takeda, Chengfeng Pu, Motoki Tanaka, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Relationship between Subjective Evaluation and Physical Quantity for Sound Spaciousness

    Soma Maezaki, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Construction of Operational Feeling Model for Push Switches in Consideration of Complex Stimuli of Tactile and Operation Sound

    Jo Sakashita, Takeshi Shirasaka, Hisato Shimomura, Takeshi Toi

    日本音響学会講演論文集  2020.3  Acoustical Society of Japan

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  • Prediction and Improvement of Gear Noise due to Difference in Contact Condition

    Kazuki Kurose, Chengfeng Pu, Takeshi Toi

    日本音響学会講演論文集  2019.9  Acoustical Society of Japan

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  • Study on Wakefulness-keeping Based on Music Feature

    Nobuaki Minami, Shin-ichi Shikii, Takeshi Toi

    日本音響学会講演論文集  2019.9  Acoustical Society of Japan

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  • Creation of Operational Feeling Model in Consideration of Tactile and Operation Sound of Tact Switches

    Jo Sakashita, Toru Hama, Takeshi Shirasaka, Katsuya Saito, Hisato Shimomura, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Influence of Engine Sound Recognition and Driving Performance with/without Seat Vibration

    Shun Nozawa, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Study of Operational Feeling Based on Actuation Time in Consideration of Tactile and Operation Sound of Tact Switches

    Jo Sakashita, Toru Hama, Takeshi Shirasaka, Katsuya Saito, Hisato Shimomura, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Construction of Prediction Model for Transmitted Sound Control from Porous Part

    Yuta Miyazaki, Seiho Boku, Toru Hama, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Prediction of Comfortable Chain Belt Sound by using Numerical Analysis

    Takafumi Takeda, Chengfeng Pu, Toru Hama, Atsushi Hayashi, Hiroki Uchida, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Construction of Driving Feeling Model in Automobile Cabin Considering Sound Environment and Vibration Environment

    Shoichi Eguchi, Taiga Ishihara, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Creation of Operational Feeling Model in Consideration of Tactile and Operation Sound of Tact Switches

    Kenta Toyoda, Toru Hama, Takeshi Ohnishi, Naoki Kamiya, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Influence of Aging on Auditory Lateralization Ability Given both ILD and ITD

    Tsukuru Osawa, Kazumoto Morita, Jo Sakashita, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Creation of Acceleration Feeling by Frequency Characteristics of Motor Sound in Hybrid Vehicles

    Kohei Motoki, Toshiaki Motomura, Toru Hama, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Creation of reality by smart sound design Invited

    Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • Improvement of Listening Discrimination Ability to Focus on the Characteristics of Mechanical Sounds

    Moeko Shiroki, Toru Hama, Takeshi Toi

    日本音響学会講演論文集  2019.3  Acoustical Society of Japan

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  • 音像定位を活用したものづくりサウンド・イノベーション

    Takeshi Toi

    SSDS/JMAC技術講演会|rn|一般社団法人スマートサウンドデザインソサエティ  2018.9 

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  • Creation of the Acceleration Feeling Focused on Acceleration Sound of CVT Vehicle

    Takeshi Toi

    The Japan Society of Mechanical Engineers  2018.8 

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  • ものづくり・ことづくりに必要な“聴き分け力”とは

    Takeshi Toi

    第5回SSDSシンポジウム|rn|一般社団法人スマートサウンドデザインソサエティ  2018.8 

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  • Quiet Down the Air-flow Self Noise in Acoustic Wind Tunnel

    Yoshiyuki Maruta, Byungjin An, Hiroyuki Ogose, Motohiko Nohmi, Masashi Obuchi, Takeshi Toi

    第28回環境工学総合シンポジウム2018 No.18-10,日本機械学会  2018.7 

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  • Participation to Student Design Contest 2017(Case of Chuo University Team)

    Kohei Motoki, Nobuaki Minami, Takeshi Toi

    日本設計工学会2018年度春季研究発表講演会  2018.5 

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  • Robust Design for Minimizing the Time History Response Fluctuation and Computational Costs by the Model Order Reduction

    Kengo KOMORI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Robust Design for Minimizing the Time History Amplitude Fluctuation by the Structure Uncertainties

    Kengo KOMORI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Creation of Proper Feeling Operation in GUI Associated with Touch Operation System

    Kenta TOYODA, Naoki KAMIYA, Takeshi OHNISHI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Influence of Impression by Changing Frequency Characteristics and Localization of Running Sound

    Shun NOZAWA, Akito OHTSUBO, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Structural Modification Based on Uncertainties Sensitivity for Sound Quality Stabilization

    Sho NAGAIKE, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Investigation of the Influence of the Sound and Vibration on Comfortable Driving Feeling

    Shoichi EGUCHI, Atsushi KITAHARA, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Evaluation of Sound Source Localization Ability of Elderly People

    Tsukuru OSAWA, Kazumoto MORITA, Kenta TOYODA, Jo SAKASHITA, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Evaluation of the Influence of Vibration Due to Mass Difference of Rowing Oars on Fatigue

    Kohei MOTOKI, Akihiko ARIMITSU, Tomomasa FUJITA, Jyunya TSURUBUCHI, Tetsuji OZAWA, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Improvement of Audibility of Sound in Noise Environment by Changing Sound Pressure Balance for Each Frequency

    Kazuki EGUCHI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Influence of Warning Sound using Chord on Reaction Time

    Masashi MORI, Taro OIKE, Ikuyo OHSUGI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Evaluation of Functionality by Variation of Quantization Bit Number of High Resolution Sound

    Hiroyuki OKUHARA, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • Characteristics and Effects of Warning Sound using Chord

    Masashi MORI, Takeshi TOI

    Acoustical Society of Japan  2018.3 

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  • 工学と感性の融合『音のデザイン』

    戸井武司

    日本インテリアデザイナー協会 日本の意匠『温故知新』物語 第九話  2018.3 

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  • 感性価値を高めるスマートサウンドデザイン

    戸井武司

    第318回科学技術展望懇談会  2018.2 

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  • IoEのための快音化技術と活用事例

    戸井武司

    電子技術産業協会(JEITA)感性センシング技術分科会  2017.12 

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  • 音響・振動の解析手法・音質評価と快音化事例

    戸井武司

    日本機械学会No.17-107機械の振動・騒音低減と快音設計に役立つ解析技術  2017.11 

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  • ドライバの音源定位認知能力と加速感モデルの構築

    戸井武司, 有光哲彦, 森田和元

    自動車技術会2017年秋季大会産学ポスターセッション  2017.10 

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  • Trend of Traffic Accident Risks from 1990 to 2015 from Aspects of Age Groups and Accident Types

    Kazumoto Morita, Michiaki Sekine, Takeshi Toi

    Society of Automotive Engineers of Japan  2017.10 

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  • 自動車加速音の変化による加速感の印象評価および創生

    戸井武司

    SSDS/JMAC技術講演会|rn|一般社団法人スマートサウンドデザインソサエティ  2017.9 

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  • Proposal of Warning Sounds using Chords According to Warning Level

    Masashi Mori, Naoyoshi Takaya, Taro Oike, Ikuyo Ohsugi, Takeshi Toi

    Acoustical Society of Japan  2017.9 

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  • Prediction of the Perceived Pitches Based on Spectral Pitch Analysis for a Uniquely Shaped Bell International conference

    Wan-Ho Cho, Yusuke Mogi, Akihiko Arimitsu, Takeshi Toi

    Proc. of INTER-NOISE 2017  2017.8 

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  • Parameter Identification for Vibro-Acoustic Systems by using Parametric Model Order Reduction International conference

    Kengo Komori, Axel van de Walle, Takeshi Toi, Wim Desmet

    Proc. of INTER-NOISE 2017  2017.8 

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  • 付加音を利用した空調の快適性および冷感制御

    戸井武司

    自動車技術会第8回振動騒音部門委員会  2017.7 

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  • Influence Evaluation of Listening to Monosyllabic by Change of Sound Quality for Sensorineural Hearing Loss

    Kazuki Eguchi, Takeshi Toi, Kazuo Kuwabara, Takafumi Fujisawa

    第27回環境工学総合シンポジウム2017 No.17-9,日本機械学会  2017.7 

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  • Evaluation of the Acceleration Feeling Focused on Acceleration Sound of CVT Vehicle

    Takeshi Toi, Takashi Kamogawa, Akihiko Arimitsu, Tetsu Yamada, Chishiro Kizawa

    Society of Automotive Engineers of Japan  2017.5 

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  • Participation to Student Design Contest 2016|rn|(Case of Chuo University Team)

    Shun Nozawa, Kenta Toyoda, Takeshi Toi

    日本設計工学会2017年度春季研究発表講演会  2017.5 

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  • Evaluation of Influence to Audibility by Original Sound Reproducibility of High-Resolution Sound

    Hiroyuki OKUHARA, Akihiko ARIMITSU, Takeshi TOI

    日本感性工学会題12回感性ロボティクスワークショップ  2017.3 

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  • Vibration Generation Based on Human Tactile Sensation

    Junya NAGANO, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第23期総会講演会講演論文集  2017.3 

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  • Non-Linear Vibration Sensitivity Analysis in case of Transient Large Deformation

    Yusuke TAKANO, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第23期総会講演会講演論文集  2017.3 

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  • Design of Multiple Degree of Freedom Vibration Power Generator

    Shohei TERAUCHI, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第23期総会講演会講演論文集  2017.3 

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  • Improvement of Building block approach Accuracy by use of Rotation Excitation and Rotation Detectio

    Suguru MATSUOKA, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第23期総会講演会講演論文集  2017.3 

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  • Synchronization Support to a Rowing Athlete Based on the Evaluation of Pupil Diameter by Using Functional Sound

    Akihiko ARIMITSU, Eishiro TAKADA, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Sound Image Localization of Information Sound by Multi Domain Sound Field Control in Vehicle

    Masataka YAJIMA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Improvement of I/O Performance Based on Sensitivity of Transfer Force Focused on Vibration Transmission of HDD Frame

    Koichi UCHIDA, Akihiko ARIMITSU, Shinichiro OKAMOTO, Hayato SIDA, Tadashi TATENO, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Evaluation of Influence to Audibility by Original Sound Reproducibility of High-Resolution Sound

    Hiroyuki OKUHARA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • The Influence Study of Driver's Fatigue Focused on the Driving Sound and Vibration

    Takaaki KOIKE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Construction of Prediction Model for Acceleration Feeling in Acceleration Sounds with Variable Speed

    Takashi KAMOGAWA, Akihiko ARIMITSU, Tetsu YAMADA, Chishiro KIZAWA, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Consideration of Prediction Model for Acceleration Feeling in Consideration of Acceleration Sounds and Driving Motion of Vehicle

    Takashi KAMOGAWA, Akihiko ARIMITSU, Tetsu YAMADA, Chishiro KIZAWA, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • Number of Pitches Used for User Character and Sign Melody

    Saki KATSUTA, Chiaki UCHINAGA, Sanae AWAKE, Takeshi TOI

    Acoustical Society of Japan  2017.3 

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement|rn|5th Report: Sound Quality Evaluation of Car Warning Sound Based on Physiological Measurement

    Toshiyuki Watanabe, Michiaki Sekine, Akira Kuramori, Norio Murata, Makiko Kadoya, Miwa Nakamura, Hiroyuki Nakajima, Osamu Maeda, Hiroyuki Hoshino, Masashi Uchiyama, Hiroyuki Okuhara, Kenta Toyoda, Koichi Uchida, Takeshi Toi

    No.12-16自動車技術シンポジウム20174031,自動車技術会  2017.2 

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  • WG2活動報告:生体計測に基づく音質評価の試み(第5報) - 生体計測による自動車警告音の音質評価 -

    No.12-16自動車技術シンポジウム20174031,自動車技術会  2017 

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  • Behavior change of rowers due to the existence of the fluctuation in a racing boat

    Akihiko Arimitsu, Tetsushi Ozawa, Takeshi Toi

    Institute of Noise Control Engineering of JAPAN  2016.11 

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  • Investigation of a natural vibration influencing on a pitching phenomenon in a single scull boat

    Akihiko Arimitsu, Tetsushi Ozawa, Yuta Miyazaki, Eishiro Takada, Takeshi Toi

    JSME Symposium: Sports engineering and Human Dynamics 2016  2016.11 

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  • Structure Study of Rowing Oars in Consideration of Arm Muscle Fatigue

    Yuta Miyazaki, Akihiko Arimitsu, Tetsushi Ozawa, Takeshi Toi

    日本音響学会,騒音・振動研究会  2016.11 

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  • 自動車加速音の変化による加速感の感性モデル構築

    戸井武司, 有光哲彦

    自動車技術会2016年秋季大会産学ポスターセッション  2016.10 

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  • 五感の相乗作用を考慮した感性モデルに基づく慣性価値の向上

    戸井武司

    SSDS/JMAC技術講演会|rn|一般社団法人スマートサウンドデザインソサエティ  2016.9 

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  • Impact Sound Design of Golf Club Considering Impact Vibration

    Akihiko Arimitsu, Daiki, Watanabe, Takeshi Toi

    Proc. of ISMA2016  2016.9 

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  • Effect Evaluation to Audibility by Resolution Change in the Sound Pressure and the Frequency

    Hiroyuki Okuhara, Akihiko Arimitsu, Takeshi Toi

    Acoustical Society of Japan  2016.9 

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  • Comfortable Sound Design of Golf Club in Hitting a Ball

    Akihiko Arimitsu, Takeshi Toi

    The Japan Society of Mechanical Engineers  2016.8 

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  • スポーツ用具の振動および音による印象変化

    戸井武司

    自動車技術会第2回振動騒音部門委員会  2016.7 

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  • Changes of Driver’s Concentration by Existence of Vehicle Interior Sound and Vibration

    Hao He, Takaaki Koike, Akihiko Arimitsu, Takeshi Toi

    第26回環境工学総合シンポジウム2016 No.16-8,日本機械学会  2016.7 

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  • Consideration of Self-Excited Aerodynamic Tone from Semi-Annular Cavity

    Yoshiyuki MARUTA, Takeshi Toi

    第26回環境工学総合シンポジウム2016 No.16-8,日本機械学会  2016.6 

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  • Participation to Student Design Contest 2015 (Case of Chuo University Team)

    Masashi Mori, Yuta Miyazaki, Takeshi Toi

    日本設計工学会2016年度春季研究発表講演会  2016.5 

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  • 脳活動を考慮した機能音の音像定位による活動支援

    戸井武司

    自動車技術会第1回音質評価技術部門委員会  2016.5 

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  • Evaluation of the impression to acceleration feeling in each acceleration section in consideration of the change of acceleration sound

    Takashi Kamogawa, Akihiko Arimitsu, Chishiro Kizawa, Michiharu Gunji, Takeshi Toi

    Society of Automotive Engineers of Japan  2016.5 

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  • Information cognitive support by using sound localization based on the wave field synthesis

    Ayumu Sato, Akihiko Arimitsu, Takeshi Toi

    Society of Automotive Engineers of Japan  2016.5 

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  • Concentration Assist by using Masking Sound Localization in Consideration of Brain Activity

    Yusuke MOGI, Akihiko ARIMITSU, Akihiko ENAMITO, Takahiro HIRUMA, Osamu NISHIMURA, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Masking Sound Localization for Effective Covering Daily Life Noise

    Yusuke MOGI, Akihiko ARIMITSU, Akihiko ENAMITO, Takahiro HIRUMA, Osamu NISHIMURA, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Construction of Audio-Visual Sensibility Model for High-quality Movies in Consideration of Audio-Visual Contribution

    Rui ONO, Akihiko ARIMITSU, Yuichiro MIKI, Takeshi OKUMURA, Masaya MIYAZAKI, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Impression Evaluation of Simulated Diesel Combustion Noise in Consideration of Dispersions in the Multi-Cylinders

    Takumi UEGANE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Various Impressions of Movies by the Difference in the Scene in Consideration of Audio-Visual Congruence

    Rui ONO, Akihiko ARIMITSU, Yuichiro MIKI, Takeshi OKUMURA, Masaya MIYAZAKI, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Multi-zone Sound Field Control with Sound Localization

    Masataka YAJIMA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Influence of Driver Drowsiness by Vehicle Interior Sound and Vibration

    Takaaki KOIKE, Ko WA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • The Effect of Mutual Vibration Induced by Hard Disk Drives on the Performance

    Koichi UCHIDA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Improving Hitting Sound of Golf Club in Consideration of Hitting Vibration

    Daiki WATANABE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Construction of Ride Comfort Estimation Model by Seat Vibration and Vehicle Interior Sound

    Ko WA, Akihiko ARIMITSU, Toshiyuki WATANABE, Takeshi TOI

    Acoustical Society of Japan  2016.3 

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  • Transfer Path Analysis in Time Domain for Input Location Varying Machine

    Daisuke Iwadate, Nobuyuki Okubo, Takeshi Toi, Keisuke Suzuki, Seiko Sai

    日本機械学会関東支部第22期総会講演会講演論文集  2016.3 

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  • Design of multiple degree of freedom vibration power generator improving generation efficiency

    Shohei Terauchi, Nobuyuki Okubo, Takeshi Toi

    日本機械学会関東支部第22期総会講演会講演論文集  2016.3 

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  • Vibration and Acoustic Analysis of Acoustic Guitar in Consideration of Transient Sound

    Nobuyuki Okubo, Naoaki Iwanaga, Takeshi Toi

    Proc. of 34th International Modal Analysis Conference/Society for Experimental Mechanics  2016.1 

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  • 大型気流自励音源の試作失敗への考察

    丸田芳幸, 戸井武司

    日本機械学会第35回流力騒音シンポジウム  2015.12 

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  • Hazard Cognitive Support by Localized Warning Sound in Consideration of Brain Activity

    Yusuke Mogi, Ayumu Satou, Akihiko Arimitsu, Takeshi Toi

    日本感性工学会,中央大学 東京電機大学 合同研究発表会2015  2015.12 

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  • Evaluation of the effects of vibration on the boat speed and the comfort in rowing

    Akihiko Arimitsu, Yousuke Igarashi, Takeshi Toi

    JSME Symposium: Sports engineering and Human Dynamics 2015  2015.10 

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  • Evaluation of the Awareness Maintenance by the Additional Sound in Consideration of the Comfortable Sound Quality

    Akihiko Arimitsu, Keisuke Endo, Keigo Okazaki, Hiroyuki Hoshino, Takeshi Toi

    Society of Automotive Engineers of Japan  2015.10 

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  • スマートサウンドデザインの魅力と音商標

    戸井武司

    日本モーダル解析協議会  2015.9 

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  • Fluid Dynamic Noise Difficult To Be Analyzed with Acoustic Wind-tunnel

    Yoshiyuki Maruta, Takeshi Toi

    日本機械学会2015年度年次大会講演論文集No.15-1  2015.9 

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  • SSDS挨拶および最新の活動状況

    戸井武司

    第2回SSDSシンポジウム|rn|一般社団法人スマートサウンドデザインソサエティ  2015.9 

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  • Improvement of the Mechanism about the Induced Noise by the Feather in Rowing

    Akihiko Arimitsu, Yousuke Igarashi, Takeshi Toi

    Institute of Noise Control Engineering of JAPAN  2015.9 

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  • Impression Change of Bus Interior Sound by Seat Vibration

    Ko Wa, Akihiko Arimitsu, Toshiyuki Watanabe, Takeshi Toi

    Acoustical Society of Japan  2015.9 

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  • Creation of Comfortable and Functional Smart Sound Design for Vehicle

    Takeshi Toi

    Acoustical Society of Japan  2015.9 

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  • An Attempt of an Objective Sound Quality Evaluation for the Running Vehicle Based on the Physiological Measurements

    Michiaki Sekine, Takeshi Toi

    Acoustical Society of Japan  2015.9 

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  • Multi-zone Sound Field Control in a Vehicle Interior

    Akihiko Arimitsu, Takeshi Toi

    The Japan Society of Mechanical Engineers  2015.8 

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  • 聴覚および視覚に基づくトリム打音の快音化

    戸井武司

    自動車技術会第8回振動騒音部門委員会  2015.7 

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  • Hazard Cognitive Support by Localized Warning Sound in a Vehicle Interior based on Brain Activity Measurement

    Yusuke Mogi, Ayumu Satou, Akihiko Arimitsu, Takeshi Toi

    Society of Automotive Engineers of Japan  2015.5 

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  • Sound Quality Evaluation Based on Physiological Information reduced dispersion by regulated of subjects using task

    Koichi Uchida, Kazuto Hanawa, Akihiko Arimitsu, Takeshi Toi

    Society of Automotive Engineers of Japan  2015.5 

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  • Maintenance of the Awareness Level based on Audiovisual Information in a Vehicle Compartment Space

    Akihiko Arimitsu, Keigo Okazaki, Takashi Goto, Toshiya Yasuoka, Takeshi Toi

    Society of Automotive Engineers of Japan  2015.5 

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  • スマートサウンドデザインの魅力と音商標

    戸井武司

    自動車技術会第6回音質評価技術部門委員会  2015.4 

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  • Vibration and Acoustic Analysis of Acoustic Guitar in Consideration of Transient Sound

    Naoaki IWANAGA, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第21期総会講演会講演論文集  2015.3 

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  • Structural Health Monitoring Based on Operational Data

    Kazushige MATSUBARA, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第21期総会講演会講演論文集  2015.3 

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  • Vibration Reduction of Complex Machine Based on Only Component Model

    Shun HADACHI, Nobuyuki OKUBO, Takeshi TOI, Takuya HAGANE, Masato SUZUKI

    日本機械学会関東支部第21期総会講演会講演論文集  2015.3 

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  • Impression Change in Hitting Sound and Vibration of Sports Equipment

    Daiki WATANABE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Various Impressions of Conversation Scenes on Complex Stimuli between Auditory and Visual Sensations

    Rui ONO, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Sound environment creation for activity supports in consideration of the interaction between auditory and visual

    Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Direction Cognitive Support by Localized Signature Sound based on Brain Activity Measurement

    Yusuke MOGI, Akihiko ENAMITO, Takahiro HIRUMA, Osamu NISHIMURA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Visualization of Unpleasantness Based on Psychoacoustical Parameter in Consideration of Audio-Visual Interaction

    Kai AIZAWA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Creation of Comfortable Life Space by Sound and Wind Environments

    Seira TAKEMOTO, Takaaki KOIKE, Takuya FURUHASHI, Susumu FUJIWARA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Improvement of Speech Privacy in Medical Space by Using Masking Sound

    Kiyoshi FUJINUMA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Comfortable Sound Design of Punch Press with Impulse Input by Structure Modification

    Kazuto HANAWA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Comfortable Sound Design of Punch Press with Impulse Input by Input Control

    Kazuto HANAWA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2015.3 

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  • Improvement of Automobile Noise Based on Psychoacoustical Parameter in Consideration of Audio-Visual Interaction

    Kai Aizawa, Takashi Kamogawa, Akihiko Arimitsu, Takeshi Toi

    2014-2015 JSAE KANTO International Conference of Automotive Technology for Young Engineers (ICATYE)  2015.3 

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  • Reduction of Radiating Sound from CFRP Laminated Plates R with Orthotropy

    Nobuyuki Okubo, Yuki Izumi, Takeshi Toi, Hideyuki Muramatsu, Yuji NAITO

    Proc. of 33th International Modal Analysis Conference/Society for Experimental Mechanics  2015.2 

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  • スマートサウンドデザインソサエティ(SSDS)設立と今後の活動

    戸井武司

    第1回SSDSシンポジウム|rn|一般社団法人スマートサウンドデザインソサエティ  2015.2 

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement|rn|Forth Report: Effect of the Control Task During the Driving Simulator Experiment on Reduction of Individual Variability in Sound Quality Evaluation

    村田法生, 関根道昭, 倉森章, 星野博之, 内山雅史, 赤司篤政, 渡邉敏幸, 前田修, 木澤千城, 中島洋幸, 門屋真希子, 山口雅夫, 花輪和人, 内田公一, 戸井武司

    No.11-14自動車技術シンポジウム20154103,自動車技術会  2015.1 

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  • WG2 活動報告:生体計測に基づく音質評価の試み - 第4報 ドライビングシミュレータを用いた被験者の統制による音質評価ばらつきの低減-

    No.11-14自動車技術シンポジウム20154103,自動車技術会  2015 

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  • Comfortable Sound Design of the Punch Press by the Input Control

    Kazuto Hanawa, Akihiko Arimitsu, Yasuhiko Fukami, Masayuki Nagae, Kiyoshi Yamane, Takeshi Toi

    日本音響学会,騒音・振動研究会  2014.12 

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  • Multi-zone Sound Field Control for Creation of Functional Environment in Vehicle Interior

    Akihiko Arimitsu, Takeshi Toi

    No.07-14自動車技術シンポジウム20144760,自動車技術会  2014.12 

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  • 機械音の快適化設計の理論と方法

    戸井武司

    日本機械学会講習会  2014.10 

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  • Installation of Multi-zone Sound Field Control to Multi-channel Audio System of Automobile Interior

    Akihiko Arimitsu, Rui Ono, Shuzo Hogaki, Hiroyuki Nakajima, Takeshi Toi

    自動車技術会学術講演会前刷集 No.101-14,自動車技術会  2014.10 

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  • Personal Audio Control Systems in Car Cabin Enhanced Robustness of Sound Pressures in Controlled Zone

    Naomichi Yanagidate, Akihiko Arimitsu, Takeshi Toi

    Acoustical Society of Japan  2014.9 

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  • Suggestion of the Sleep Onset Indicator Based on Measuring Brain Blood Flow

    Takaaki Koike, Seira Takemoto, Akihiko Arimitsu, Takeshi Toi

    Acoustical Society of Japan  2014.9 

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  • Creation of Natural and Comfortable Feeling by Blowing Sound and Wind in Air Conditioned Space

    Akihiko Arimitsu, Seira Takemo, Takeshi Toi

    Proc. of ISMA2014  2014.9 

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  • Vibration Energy Control in Mid Frequency Range Based on Principal Component Analysis

    Nobuyuki Okubo, Yuta Ii, Kohei Furuya, Takeshi Toi, Atsushi Seto, Shintaro Kanoko

    Proc. of ISMA2014  2014.9 

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  • Car Cabin Personal Audio: Acoustic Contrast with Limited Sound Differences

    Naomichi Yanagidate, Jordan Cheer, Stephen J. Elliott, Takeshi Toi

    AES 55th International Conference  2014.8 

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  • 自動車運転者の覚醒維持に効果のある高付加価値な音環境

    戸井武司

    日本モーダル解析協議会  2014.8 

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  • 倍音成分に着目した自動車加速音の音質メカニズムの解明

    戸井武司

    日本機械学会No.14-17 Dynamics and Design Conference 2014 v_BASE(振動工学データベース)フォーラム資料集  2014.8 

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  • 質感向上のためのサウンドデザインとスマートサウンドスペースの構築

    戸井武司

    精密工学会講習会  2014.5 

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  • Study on Arousal Level Maintenance Based on Audiovisual Information

    Keigo Okazaki, Masao Yamaguchi, Takeshi Toi

    自動車技術会学術講演会前刷集 No.61-14,自動車技術会  2014.5 

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  • Application of Multi-zone Sound Field Control to Vehicle Cabin based on Inverse Problem Approach

    Rui Ono, Akihiko Arimitsu, Takeshi Toi

    自動車技術会学術講演会前刷集 No.22-14,自動車技術会  2014.5 

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  • 機能性音響空間<スマートサウンドスペース>による人の活動支援

    戸井武司

    自動車技術会第1回音質評価技術部門委員会  2014.4 

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  • Vibration and Noise Reduction of Impact Wrench based on the Transfer Characteristic between Parts

    Haruki TEJIMA, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第20期総会講演会講演論文集No.140-1  2014.3 

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  • Three dimensional finite element simulation for an ultrasonic cleaning tank with the cleaned object

    Masato SHIMOKAWARA, Naoto IKEDA, Ei'ichi ANDO, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Perceptibility of localized signature sound based on physiological information

    Yusuke MOGI, Akihiko ARIMITSU, Takahiro HIRUMA, Akihiko ENAMITO, Osamu NISHIMURA, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Suggestion of the sound quality evaluation technique by the biomedical information using the task

    Kazuto HANAWA, Takumi UEGANE, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Improvement of the comfortable sensation by changing sound quality of shower sound

    Daiki WATANABE, Kiyoshi FUJINUMA, Kiyotake UKIGAI, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Comfort control of air conditioner by sound and wind environment

    Seira TAKEMOTO, Akihiko ARIMITSU, Takuya FURUHASHI, Susumu FUJIWARA, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Robust design with fixed point theory using the anti-resonance frequency sensitivity

    Akihiko KATAGIRI, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Application to structural-acoustic coupling model of the robust design approach to changes in eigen frequency

    Akihiko KATAGIRI, Takeshi TOI

    Acoustical Society of Japan  2014.3 

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  • Development of Vibration Damper for Energy Harvesting

    Nobuyuki OKUBO, Taiju KUNISAKI, Takeshi TOI

    Proc. of 31th International Modal Analysis Conference/Society for Experimental Mechanics  2014.2 

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  • スマートサウンドスペースによる活動支援

    戸井 武司

    日本機械学会環境工学部門 第10回音・振動快適化技術と新しい評価法研究会  2014.1 

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  • 感性を考慮した快音化とサウンドデザイン

    戸井武司

    2013年度シンポジウム,日本画像学会  2013.12 

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  • Similarity Evaluation of Harmonic Components between Automobile Acceleration Sound and Musical Instrument Sound

    Takeshi Toi

    No.07-13自動車技術会シンポジウム,自動車技術会  2013.12 

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  • Reduction Technique of Radiating Sound Pressure for CFRP Laminated Plates

    泉佑樹, 大久保信行, 戸井武司, 村松英行, 内藤勇二

    自動車技術会学術講演会前刷集 No.152-13,自動車技術会  2013.10 

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  • 感性ものづくりに求められる音創り

    戸井武司

    日本モーダル解析協議会  2013.9 

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  • Change prediction method for frequency for frequency response function by uncertainty of structure

    Akihiko KATAGIRI, Takeshi TOI

    Acoustical Society of Japan  2013.9 

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  • Understanding of influence for human sensible temperature by sound and color environments

    Akihiko Arimitsu, Takeshi Toi

    Proc. of ICSV 20  2013.7 

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  • 生体情報に基づく音質評価とサウンドデザインによる快音化

    戸井武司

    広島県音・振動技術研究会  2013.5 

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  • Similarity Evaluation between Automobile Acceleration Sound and Musical Instrument Sound based on Subjective and Objective Evaluation

    Akihiko Arimitsu, Kai Aizawa, Kazuto Hanawa, Takeshi Toi

    自動車技術会学術講演会前刷集 No.71-13,自動車技術会  2013.5 

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  • Proposal of comfortable sound design in the chemotherapy space based on physiological information

    Akihiko ARIMITSU, Kiyoshi FUJINUMA, Takeshi TOI

    日本騒音制御工学会研究発表会講演論文集  2013.4 

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  • Experimental Identification on Vibrational and Acoustic Property of CFRP Laminated Plates with Orthotropy

    Yuki IZUMI, Katsunori NAGAI, Kohei FURUYA, Nobuyuki OKUBO, Takeshi TOI, Hideyuki MURAMATSU

    The Japan Society of Mechanical Engineers  2013.3 

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  • Vibration Energy Control in mid frequency range based on principal component analysis

    Yuta II, Kohei FURUYA, Nobuyuki OKUBO, Takeshi TOI

    The Japan Society of Mechanical Engineers  2013.3 

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  • The influence of the sense of rhythm on comfort and productive activity

    Masao YAMAGUCHI, Kazuto HANAWA, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • A questionnaire survey about sound environment in the hospital

    Kiyoshi FUJINUMA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Axisymmetric Finite Element Simulation for an Ultrasonic Cleaning Tank with Piezoelectric Transducer

    Masato SHIMOKAWARA, Seira TAKEMOTO, Eiichi ANDO, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Axisymmetric Finite Element Simulation for an Ultrasonic Cleaning Tank with Piezoelectric Transducer

    Seira TAKEMOTO, Masato SHIMOKAWARA, Eiichi ANDO, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Sound design of door closing sound of box type structure in consideration of the color

    Tomohiro SAWA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Understanding of influence for human sensible temperature by sound and color environment

    Akihiko ARIMITSU, Miho YOSHIDA, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Comfort evaluation of machine operation sound by using subjective and objective sound quality evaluation

    Masaki MORITANI, Masao YAMAGUCHI, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Sound design of impact sound by the input control

    Yohei ASAHI, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Auditory modeling of vehicle sound in consideration of audio-visual information and driving operation

    Yasuhide WATANABE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Application to FE model of the robust design approach against to variable natural frequency and experiment verification

    Akihiko KATAGIRI, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Suggestion of the robust design approach to natural frequency varied by uncertainty of structure

    Akihiko KATAGIRI, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Comfort and cold sensation control of air conditioner by using the addition sound

    Keigo OKAZAKI, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2013.3 

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  • Vibration Reduction of Brush Cutter

    Nobuyuki OKUBO, Hiroyuki NAKAGAWA, Kohei FURUYA, Takeshi TOI

    Proc. of 31th International Modal Analysis Conference/Society for Experimental Mechanics  2013.2 

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  • 視聴覚情報および運転動作による自動車加減速時の印象変化

    渡邊泰英, 戸井武司

    自動車技術会第5回振動騒音部門委員会  2013.1 

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement Third Report: Evaluation for Cruse Noises of a Real Vehicle by Heart Rate Variability and Brain Blood Flow Measurements

    Michiaki Sekine, Akira Kuramori, Norio Murata, Hiroyuki Hoshino, Masashi Uchiyama, Hirokazu Tatekawa, Kazutomo Murakami, Tomohiko Tokunaga, Masaki Moritani, Kazuto Hanawa, Ryouichi Arai, Takeshi Toi

    No.07-12自動車技術会シンポジウム,自動車技術会  2013.1 

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  • Visual and sound design for industrial products based on subjective and objective evaluation

    Akihiko ARIMITSU, Tomohiro SAWA, Takeshi TOI

    映像情報メディア学会冬季大会講演予稿集  2012.12 

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  • 音響・振動の解析手法と快音化事例

    戸井武司

    日本機械学会No.12-128機械の振動・騒音低減と快音設計に役立つ解析技術  2012.11 

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  • Comfortable Sound Design of Automobile Trim Knocking Sound Based on Visual and Auditory Sensation

    Kai Aizawa, Akihiko Arimitsu, Shuzo Hogaki, Tomohiko Tokunaga, Takeshi Toi

    自動車技術会学術講演会前刷集 No.109-12,自動車技術会  2012.10 

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  • Multi-zone Sound Field Control Adapting to Types of Passengers in the Vehicle Cabin

    Naomichi Yanagidate, Wan-Ho Cho, Takeshi Toi

    自動車技術会学術講演会前刷集 No.109-12,自動車技術会  2012.10 

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  • Noise reduction method in enclosed space due to multiple input by use of anti-resonance sensitivities

    Nobuyuki Okubo, Sho Enomoto, Kohei Furuya, Takeshi Toi

    Proc. of ISMA2012  2012.9 

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  • 自動車室内の多領域音場制御

    曺浣豪, 戸井武司

    日本機械学会No.12-12 Dynamics and Design Conference 2012 v_BASE(振動工学データベース)フォーラム資料集  2012.9 

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  • Comfortable sound design of vehicle interior

    Takeshi TOI

    Acoustical Society of Japan  2012.9 

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  • Sound Design of Closing Door in Industrial Products Based on the Visual Sensation of Shape and Color

    Akihiko ARIMITSU, Tomohiro SAWA, Takeshi TOI

    Acoustical Society of Japan  2012.9 

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  • Impression change of vehicle sound by audiovisual information and driving operation based on physiological information

    Yasuhide WATANABE, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2012.9 

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  • Grasp of the similarity between automobile acceleration sound and musical instrument sound based on subjectivity and object evaluation

    Kazuto HANAWA, Kai AIZAWA, Akihiko ARIMITSU, Takeshi TOI

    Acoustical Society of Japan  2012.9 

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  • Evaluation of the effect of rhythmical sound on compatibility by|rn|using physiological information

    Masao Yamaguchi, Masaki Moritani, Kazuto Hanawa, Wan-Ho Cho, Takeshi Toi

    Proc. of INTER-NOISE 2012  2012.8 

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  • Handling of uncertainties in inverse rendering of sound field

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    Proc. of INTER-NOISE 2012  2012.8 

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  • 自動車車室内におけるスマートサウンドスペースの適用とその効果

    有光哲彦, 柳舘直成, 曺浣豪, 戸井武司

    第22回環境工学総合シンポジウム2012 No.12-6,日本機械学会  2012.7 

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  • Sound Design of Industrial Products Based on the Preferred Matching between Visual and Auditory Sensation

    Akihiko Arimitsu, Wan-Ho Cho, Takeshi Toi

    Proc. of ICSV 19  2012.7 

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  • Strike notes and their pitches of some kinds of bells

    Shigeru Yoshikawa, Wan-Ho Cho, Takeshi Toi

    Acoustics 2012 HONG KONG  2012.5 

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  • Proposal for the Development of Noise and Vibration Engineers

    Takeshi Toi

    フォーラムテキストNo.12-01,自動車技術会  2012.5 

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  • Effect of the warning system which informs traffic light change on driving behavior

    Michiaki Sekine, Hiroki Tanigawa, Nobuhisa Tanaka, Kazumoto Morita, Wan-Ho Cho, Takeshi Toi, Chuo University

    自動車技術会学術講演会前刷集 No.36-12,自動車技術会  2012.5 

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  • 自動車ボディの色彩に基づくドア閉まり音のサウンドデザイン

    有光哲彦, 戸井武司

    自動車技術会第7回音質評価技術部門委員会  2012.4 

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  • Influence of subject’s favorite music on productivity

    Masaki MORITANI, Masao YAMAGUCHI, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Quantitative transmission of information by pitch constitution method

    Ryoichi ARAI, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Impression change of vehicle sound during acceleration and deceleration by visual and auditory information and driving operation

    Yasuhide WATANABE, Wan-Ho CHO, Osamu MAEDA, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Supporting safety driving with alarm systems to improve recognizability

    Hiroki TANIGAWA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Development of the sound quality improvement technique of the turret punch press by input control

    Yohei ASAHI, Wan-Ho CHO, Yasuhiko FUKAMI, Masayuki NAGAE, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Prevention of the inattentive driving with an alarm system

    Hiroki TANIGAWA, Wan-Ho CHO, Kazumoto MORITA, Michiaki SEKINE, Nobuhisa TANAKA, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Design of the additional sound for exterior of an electrical vehicle considering the receptiveness

    Atsushi SONOBE, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Structural design to improve the robustness of system to uncertainties of design variable

    Jun SAKAMOTO, Akihiko KATAGIRI, Kohei FURUYA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Objective prediction model for door closing sound of home appliances

    Tomohiro SAWA, Akihiko ARIMITHU, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Sound Design of Industrial Products Based on the Compensation of Impression Gap between Visual and Auditory Sensation

    Akihiko ARIMITSU, Tomonori NAKAMURA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Development of the interior door in consideration of aeration and sound absorption

    Shunsuke AOKI, Masato SHIMOKAWARA, Akihiko ARIMITSU, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • オートマチックトランスミッションからのギヤノイズに対するロバスト設計

    矢島兼光, 古屋耕平, 大久保信行, 戸井武司, 鈴木圭介, 上田晃裕

    日本機械学会関東支部第18期総会講演会講演論文集No.120-1  2012.3 

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  • エンジン刈払機の振動低減手法

    中川弘之, 大久保信行, 古屋耕平, 戸井武司

    日本機械学会関東支部第18期総会講演会講演論文集No.120-1  2012.3 

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  • 反共振周波数感度を用いた複数入力が作用する閉空間内騒音低減手法

    榎本翔, 大久保信行, 古屋耕平, 戸井武司

    日本機械学会関東支部第18期総会講演会講演論文集No.120-1  2012.3 

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  • 音と人とのかかわりの現状と展望

    戸井武司

    第60回静粛工学セミナー  2012.3 

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  • 振動エネルギに着目した中周波数領域の定義法

    飯井優太, 古屋耕平, 大久保信行, 戸井武司, 瀬戸厚司, 鹿子愼太郎, 山本豊樹

    日本機械学会関東支部第18期総会講演会講演論文集No.120-1  2012.3 

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  • Suggestion of parameter to evaluate the robustness of vibration response against to the deviation of design parameters

    Akihiko KATAGIRI, Jun SAKAMOTO, Kohei FURUYA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2012.3 

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  • Experimental Realization of System-Level Vibration by Use of Single Component Based on Virtual Boundary Condition Concept

    Proc. of 30th International Modal Analysis Conference/Society for Experimental Mechanic  2012 

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  • Objective prediction model for door closing sound of home appliances

    Acoustical Society of Japan  2012 

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  • Sound Design of Industrial Products Based on the Compensation of Impression Gap between Visual and Auditory Sensation

    Acoustical Society of Japan  2012 

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  • Development of the interior door in consideration of aeration and sound absorption

    Acoustical Society of Japan  2012 

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  • Suggestion of parameter to evaluate the robustness of vibration response against to the deviation of design parameters

    Acoustical Society of Japan  2012 

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  • Experimental Realization of System-Level Vibration by Use of Single Component Based on Virtual Boundary Condition Concept

    Kohei FURUYA, Tetsuki HIYAMA, Nobuyuki OKUBO, Takeshi TOI

    Proc. of 30th International Modal Analysis Conference/Society for Experimental Mechanics  2012.1 

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  • 快音設計によるものづくり・音創り

    戸井武司

    日本機械学会関東支部第5回産学公交流セミナー  2012.1 

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  • 知的生産性における好みの音楽の影響

    日本音響学会講演論文集  2012 

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  • ピッチ構成法を用いた音による定量的な情報伝達

    日本音響学会講演論文集  2012 

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  • 視聴覚情報および運転動作による自動車の加減速時の印象変化

    日本音響学会講演論文集  2012 

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  • 警報システムによる認知性向上を目指した安全運転支援

    日本音響学会講演論文集  2012 

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  • 入力制御によるタレットパンチプレスの音質改善手法の開発

    日本音響学会講演論文集  2012 

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  • 警報システムによる脇見運転防止

    日本音響学会講演論文集  2012 

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  • 受容性を考慮した電気自動車の車両付加音

    日本音響学会講演論文集  2012 

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  • 設計変数の変動に対するロバスト性向上のための構造設計

    日本音響学会講演論文集  2012 

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  • Evaluation of the effect of rhythmical sound on compatibility by using physiological information

    Proc. of INTER-NOISE 2012  2012 

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  • Multi-zone sound field control in the vehicle cabin

    Wan-Ho CHO, Takeshi TOI

    Proceedings of the symposium, Society of Automotive Engineers of Japan  2011.12 

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  • 快音設計による自動車の音創り

    戸井武司

    ひろしま医工連携・先進医療イノベーション拠点|rn|第2回拠点設備・機器の有効活用に向けたセミナー  2011.12 

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  • 自動車における音のデザイン

    戸井武司

    日本音響学会,音のデザイン調査研究委員会,騒音・振動研究会  2011.12 

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  • 振動・騒音に着目したロバスト最適化

    坂本順, 戸井武司

    自動車技術会第10回振動騒音部門委員会  2011.11 

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  • Research on Maintenance of Driver’s Arousal Level Using Steady Running Noise

    Wataru NAKAI, Hiroyuki KUBOTANI, Masayuki SATOMI, Takeshi TOI

    18th ITS World Congress  2011.10 

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  • 制御空間における不確定要素の影響評価

    曺浣豪, 戸井武司

    日本音響学会講演論文集  2011.9 

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  • 構造のばらつきに対するロバスト設計による音質安定化手法の開発

    坂本順, 古屋耕平, 曺浣豪, 戸井武司

    日本音響学会講演論文集  2011.9 

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  • A Study on Impression Change of Comfortable EV Interior Sound by Visual Information and Driving Motion

    Yasuhide Watanabe, Yasuyuki Asahara, Wan-Ho Cho, Takeshi Toi

    Acoustical Society of Japan  2011.9 

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  • Understanding the impression of knocking sound at door color change based on physiological information

    Akihiko Arimitsu, Tomonori Nakamura, Wan-Ho Cho, Takeshi Toi

    Acoustical Society of Japan  2011.9 

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  • Understanding the State of Intellectual Production Activities at the Time of Changing Sound Environment Based on Physiological Information

    Akihiko Arimitsu, Wan-Ho Cho, Takeshi Toi

    Proceedings of 2011 Autumn Meeting, the Institute of Noise Control Engineering of Japan  2011.9 

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  • Study on Maintenance of Driver’s Arousal Level using Running Noise

    Hiroyuki KUBOTANI, Wataru NAKAI, Masayuki SATOMI, Wan-Ho CHO, Takeshi TOI

    Proceedings of 2011 Autumn Meeting, the Institute of Noise Control Engineering of Japan  2011.9 

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  • Smart Sound Space with Various Functions in Sound Environment

    Takeshi Toi

    Proceedings of 2011 Autumn Meeting, the Institute of Noise Control Engineering of Japan  2011.9 

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  • Rendering a desired sound field using the inverse approach:Robust method for the real situation with uncertainties

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    Proc. of INTER-NOISE 2011  2011.9 

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  • Control of sound environment in space based on the physiological information

    Akihiko Arimitsu, Masao Yamaguchi, Wan-Ho Cho, Takeshi Toi

    Proc. of INTER-NOISE 2011  2011.9 

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  • A study on the evaluation method of being accustomed to hearing vehicle interior noise

    Masao Yamaguchi, Masayuki Satomi, Wan-Ho Cho, Takeshi Toi

    Proc. of INTER-NOISE 2011  2011.9 

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  • 最新のものづくり・音創り

    戸井武司

    日本モーダル解析協議会  2011.9 

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  • Objective Sound Quality Evaluation for Home Electrical Appliances by Using Physiological Information

    Masao Yamaguchi, Takuya Sekiguchi, Wan-Ho Cho, Takeshi Toi

    Proc. of ICSV 18  2011.7 

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  • Optimum Design for Floor Panel using Correlation between Car Body Components

    Kohi Furuya, Akiyasu Miyamoto, Toyoki Yamamoto, Takeshi Toi

    自動車技術会学術講演会前刷集 No.69-11,自動車技術会  2011.5 

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  • Control of the Beamwidth of a Beamformer with a fixed array configuration

    Wan-Ho Cho, Marinus M. Boone, Jeong-Guon Ih, Takeshi Toi

    130th Audio Engineering Society Convention  2011.5 

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  • 生体情報に基づく音刺激によるドライバの覚醒水準維持に関する研究

    戸井武司

    自動車技術会第7回音質評価技術部門委員会  2011.4 

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  • Sound Field Rendering by the Holographically Designed Source Array and Resource Optimization

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    Proc. the 10th ICTCA  2011.4 

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  • Tone creation of the artificial sound for next generation vehicle concerning the urban environment

    Atsushi SONOBE, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Evaluation and refinement of the synchronized sound with quantified information based on the subjective feeling of users

    Ryoichi ARAI, Wan-Ho CHO, Junichi HARUNA, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Influence of driver's favorite music on the effect of the awakening sound to maintain the arousal level of driver

    Msayuki SATOMI, Wan-Ho CHO, Wataru NAKAI, Hiroyuki KUBOTANI, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Comfortable sound design based on the wave interference of the sound radiated from a flow outlet

    Takuya SEKIGUCHI, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Efficient arrangement of the acoustic absorption materials in a residence space

    Tomohisa KATSUMATA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • A study on the evaluation method for accustoming of auditory system to vehicle interior noise under a fixed speed driving condition

    Masayuki SATOMI, Masao YAMAGUCHI, Wan-Ho CHO, Takeshi TOI

    Proceedings of 2011 meeting, Acoustical Society of Japan  2011.3 

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  • Sound Design on Shooting Sound of Iron Golf Club

    Nobuyuki OKUBO, Kohei FURUYA, Takeshi TOI, Goro HISAMATSU

    日本機械学会関東支部第17期総会講演会講演論文集No.110-1  2011.3 

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  • Experimental Realization of System-Level Vibration by Use of a Single Component Based on a Virtual Boundary Condition Concept

    Tetsuki HIYAMA, Nobuyuki OKUBO, Takeshi TOI, Kohei FURUYA

    日本機械学会関東支部第17期総会講演会講演論文集No.110-1  2011.3 

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  • Optimum Adjustment of Mount Condition for Vibration Transmission Suppression from Light Weight Engine to Chassis

    Tomoyuki MATSUI, Kohei FURUYA, Nobuyuki OKUBO, Takeshi TOI

    日本機械学会関東支部第17期総会講演会講演論文集No.110-1  2011.3 

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  • Optimum Design Method using Correlation between Components and Its Application to Plate Structures

    Akiyasu MIYAMOTO, Kohei FURUYA, Takeshi TOI, Toyoki YAMAMOTO

    日本機械学会関東支部第17期総会講演会講演論文集No.110-1  2011.3 

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  • Multizone Control of a Sound Field by the Inverse Approach

    Wan-Ho CHO, Jeong-Guon IH, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Basic study of accustomed to hearing evaluation approach for home electrical appliances by Physiological Information

    Masao YAMAGUCHI, Takuya SEKIGUCHI, Wan-Ho CHO, Takeshi TOI

    Proceedings of 2011 meeting, Acoustical Society of Japan  2011.3 

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  • 安全運転支援システムに用いる音声情報の評価方法に関する研究

    谷川裕樹, 曺浣豪, 森田和元, 関根道昭, 戸井武司

    日本音響学会講演論文集,日本音響学会  2011.3 

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  • 機能性材料を用いた音響特性チューニング手法の開発

    青木駿典, 曺浣豪, 楯泰貴, 長屋喜八, 丹羽厚至, 戸井武司

    日本音響学会講演論文集,日本音響学会  2011.3 

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  • Design of sound in various environments and comfortable sound design

    Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Design of the vehicle exhaust sound with the flat type lightweight muffler

    Keisuke KATSUMATA, Wan-Ho CHO, Hiroaki MASUBUCHI, Katsufumi INOUE, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • Development of the robust design method to stabilize the deviation of structures

    Jun SAKAMOTO, Kohei FURUYA, Wan-Ho CHO, Takeshi TOI

    Acoustical Society of Japan  2011.3 

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  • CAE Based Approach to Understand a Behavior of Vibro-Acoustic System

    Kohei Furuya, Takuya Yoshimura, Nobuyuki Okubo, Takeshi Toi

    Proc. of 29th International Modal Analysis Conference/Society for Experimental Mechanics  2011.2 

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  • CAE Based Approach to Understand a Behavior of Vibro-Acoustic System

    Proc. of 29th International Modal Analysis Conference/Society for Experimental Mechanic  2011 

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  • Sound Design on Shooting Sound of Iron Golf Club

    2011 

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  • Experimental Realization of System-Level Vibration by Use of a Single Component Based on a Virtual Boundary Condition Concept

    2011 

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  • Optimum Adjustment of Mount Condition for Vibration Transmission Suppression from Light Weight Engine to Chassis

    2011 

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  • Optimum Design Method using Correlation between Components and Its Application to Plate Structures

    2011 

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  • Multizone Control of a Sound Field by the Inverse Approach

    Acoustical Society of Japan  2011 

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  • Basic study of accustomed to hearing evaluation approach for home electrical appliances

    Acoustical Society of Japan  2011 

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  • Design of sound in various environments and comfortable sound design

    Acoustical Society of Japan  2011 

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  • Design of the vehicle exhaust sound with the flat type lightweight muffler

    Acoustical Society of Japan  2011 

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  • Development of the robust design method to stabilize the deviation of structures

    Acoustical Society of Japan  2011 

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  • Sound Field Rendering by the Holographically Designed Source Array and Resource Optimization

    Proc. the 10th ICTCA  2011 

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  • Control of the Beamwidth of a Beamformer with a fixed array configuration

    130th Audio Engineering Society Convention  2011 

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  • Objective Sound Quality Evaluation for Home Electrical Appliances by Using Physiological Information

    Proc. of ICSV 18  2011 

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  • Rendering a desired sound field using the inverse approach:Robust method for the real situation with uncertainties

    Proc. of INTER-NOISE 2011  2011 

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  • Control of sound environment in space based on the physiological information

    Proc. of INTER-NOISE 2011  2011 

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  • A study on the evaluation method of being accustomed to hearing vehicle interior noise

    Proc. of INTER-NOISE 2011  2011 

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  • Research on Maintenance of Driver’s Arousal Level Using Steady Running noise

    18th ITS World Congress  2011 

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  • 都市環境を考慮した車両付加音の音色創り

    日本音響学会講演論文集,日本音響学会  2011 

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  • 使用者の聴感に基づいた同期音の評価とその改善

    日本音響学会講演論文集,日本音響学会  2011 

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  • 好みの音楽が覚醒音の覚醒水準維持効果に及ぼす影響

    日本音響学会講演論文集,日本音響学会  2011 

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  • 音波干渉に基づく開口部放射音の快音設計

    日本音響学会講演論文集,日本音響学会  2011 

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  • 居住空間における効率的な吸音材の配置

    日本音響学会講演論文集,日本音響学会  2011 

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  • 車室内定常走行音の聞き慣れ評価手法の研究

    日本音響学会講演論文集,日本音響学会  2011 

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  • 部品間の相関を利用したフロアパネルの最適設計

    自動車技術会学術講演会前刷集 No.69-11,自動車技術会  2011 

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  • 車室内の多領域音場制御

    No.06-11自動車技術会シンポジウム,自動車技術会  2011 

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  • Evaluation method of robustness for sound pressure minimization in vibro-acoustic system

    Kohei FURUYA, Takeshi TOI, Nobuyuki OKUBO

    日本機械学会 No.10-67第9回最適化シンポジウム2010  2010.12 

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  • 様々な環境における音のデザインと快音設計

    戸井武司

    日本音響学会東海支部 技術講習会  2010.11 

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  • WG2 Activity Report: Trial for Sound Quality Evaluation Based on Physiological Measurement(2nd Report)

    Masahiro Nishi, Akira Kuramori, Masashi Uchiyama, Michiaki Sekine, Hirokazu Takekawa, Hiroyuki Hoshino, Kazutomo Murakami, Norio Murata, Masayuki Satomi, Takeshi Toi

    No.02-10自動車技術会シンポジウム20104444  2010.9 

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  • Activities Report of Sound Quality Evaluation Technical Research Committee in Fiscal Year 2008 to 2009

    Takeshi Toi

    No.02-10自動車技術会シンポジウム20104442  2010.9 

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  • Holographical Source Array Design for an Interior Space

    Wan-Ho Cho, Takeshi Toi, Jeong-Guon Ih

    Acoustical Society of Japan  2010.9 

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  • Development of sound quality stabiliza-tion method of multi function peripheral

    Masao Yamaguchi, Sho Shirakata, Nobuyuki Okubo, Takeshi Toi

    Proc. of ISMA2010  2010.9 

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  • CAE Tool for Robust Design of Vibro-Acoustic System

    Kohei FURUYA, Takeshi TOI, Nobuyuki OKUBO

    日本機械学会 No.10-8 Dynamics and Design Conference 2010  2010.9 

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  • Cognition improvement of warning system by complex stimuli in vehicle interior

    Masao Yamaguchi, Shinya Kobayashi, Takeshi Toi

    Proceedings of 20th International Congress on Acoustics, ICA2010  2010.8 

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  • Objective sound quality evaluation for precision information equipment by using the activity of salivary amylase

    Masao Yamaguchi, Shinji Ozawa, Masayuki Satomi, Takeshi Toi

    Proceedings of the Seventeen International Congress on Sound and Vibration  2010.7 

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  • Diagnosis of vehicle window motors using sound quality metrics

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    日本音響学会 騒音・振動研究会  2010.7 

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  • Quality Check of Automotive Window Motors Using the Sound Quality Metrics

    Wan-Ho Cho, Jeong-Guon Ih, Takeshi Toi

    Proc. of INTER-NOISE 2010/INCE  2010.6 

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  • 複合刺激下における携帯型医療機器の客観的音質評価と快音設計

    戸井武司

    自動車技術会第2回音質評価技術部門委員会  2010.6 

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  • Development of Comfortable Switch in Consideration of Complex Stimulation by Acoustic and Haptic Sense

    Ryuichi Arai, Sho Shimazaki, Ayumu Kobayashi, Takeshi Toi

    自動車技術会学術講演会前刷集 No.63-10/自動車技術会  2010.5 

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  • Study on Awakening Maintenance of Driver by Vehicle Interior Steady Running Noise

    Masayuki Satomi, Wataru Nakai, Hiroyuki Kubotani, Takeshi Toi

    自動車技術会学術講演会前刷集 No.63-10/自動車技術会  2010.5 

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  • Comfortable sound design for house floor model using numerical simulation

    Tomohisa KATSUMATA, Yukiko ASANO, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Development of modeling techniques for prediction precision improvement of hybrid SEA by experiment and analysis

    Kazunobu KURATA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Comfortable sound design for portable medical equipment in consideration of complex stimulus of vibration and noise

    Hirofumi HORITA, Ryuuji NUMATA, Tuneo MASUDA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Improvement in a sense of rhythm in consideration of balance of steady and transient sounds

    Shinji OZAWA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Vibration Robust Design of Structure with Multiple Part Connection Uncertainty

    Tsutomu MISHUKU, Nobuyuki OKUBO, Takeshi TOI

    関東支部第16期総会講演会講演論文集No.100-1,日本機械学会  2010.3 

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  • Sound Design of the Door Closing Sound for Automobile

    Yuma MIKAMI, Nobuyuki OKUBO, Takeshi TOI, Masayuki TAKETANI

    関東支部第16期総会講演会講演論文集No.100-1,日本機械学会  2010.3 

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  • Identification of Vibration Location Contributing Interior Noise and Effective Noise Reduction in Vibro-Acoustic Coupling System

    Shogo HAMANAKA, Nobuyuki OKUBO, Takeshi TOI

    関東支部第16期総会講演会講演論文集No.100-1,日本機械学会  2010.3 

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  • Prediction of camera shutter sound by vibrational characteristics of case structure

    Jun SAKAMOTO, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Clarification of generation mechanism of exhaust sound by flat muffler

    Keisuke KATSUMATA, Hiroaki MASUBUCHI, Youhei TOYOSHIMA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Cognitive improvement of warning system by compound stimulation in vehicle interior

    Shinya KOBAYASHI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Cognitive improvement of warning system by directivity of sound in vehicle interior

    Shinya KOBAYASHI, Yasushi HAMADA, Ikuyo OHSUGI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Sound quality evaluation of deceleration sound for electric vehicle by modification of motor sound quality

    Sho SHIMAZAKI, Yasuyuki ASAHARA, Takuma KINOTO, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Basic study of accustomed to hearing evaluation approach

    Shinji OZAWA, Masao YAMAGUCHI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2010.3 

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  • Noise Reduction of Continuously Variable Transmission (CVT) for Automobile

    Nobuyuki OKUBO, Hiroki AIKAWA, Takeshi TOI, Yasuhide HIRABAYASHI, Akihisa TSURUTA

    Proc. of 28th International Modal Analysis Conference/Society for Experimental Mechanics  2010.2 

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  • Noise Reduction of Continuously Variable Transmission (CVT) for Automobile

    Proc. of 28th International Modal Analysis Conference/Society for Experimental Mechanic  2010 

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  • Vibration Robust Design of Structure with Multiple Part Connection Uncertainty

    2010 

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  • Sound Design of the Door Closing Sound for Automobile

    2010 

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  • Identification of Vibration Location Contributing Interior Noise and Effective Noise Reduction in Vibro-Acoustic Coupling System

    2010 

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  • Prediction of camera shutter sound by vibrational characteristics of case structure

    2010 

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  • Clarification of generation mechanism of exhaust sound by flat muffler

    2010 

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  • Cognitive improvement of warning system by compound stimulation in vehicle interior

    2010 

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  • Cognitive improvement of warning system by directivity of sound in vehicle interior

    2010 

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  • Sound quality evaluation of deceleration sound for electric vehicle by modification of motor sound quality

    2010 

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  • Basic study of accustomed to hearing evaluation approach

    2010 

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  • Study on Awakening Maintenance of Driver by Vehicle Interior Steady Running Noise

    2010 

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  • Quality Check of Automotive Window Motors Using the Sound Quality Metrics

    Proc. of INTER-NOISE 2010/INCE  2010 

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  • Objective sound quality evaluation for precision information equipment by using the activity of salivary amylase

    Proceedings of the Seventeen International Congress on Sound and Vibration  2010 

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  • Diagnosis of vehicle window motors using sound quality metrics

    2010 

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  • Cognition improvement of warning system by complex stimuli in vehicle interior

    Proceedings of 20th International Congress on Acoustics, ICA2010  2010 

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  • Holographical Source Array Design for an Interior Space

    Acoustical Society of Japan  2010 

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  • Development of sound quality stabiliza-tion method of multi function peripheral

    Proc. of ISMA2010  2010 

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  • CAE Tool for Robust Design of Vibro-Acoustic System

    2010 

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  • Evaluation method of robustness for sound pressure minimization in vibro-acoustic system

    2010 

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  • 数値シミュレーションを用いた住居床モデルの快音設計

    日本音響学会講演論文集,日本音響学会  2010 

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  • 実験と解析によるHybrid SEAのための予測精度向上モデリング手法の開発

    日本音響学会講演論文集,日本音響学会  2010 

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  • 携帯型医療機器の振動および騒音の複合刺激を考慮した快音設計

    日本音響学会講演論文集,日本音響学会  2010 

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  • 定常音と過渡音のバランスを考慮したリズム感の向上

    日本音響学会講演論文集,日本音響学会  2010 

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  • 聴覚と触覚による複合刺激を考慮した快適なスイッチの開発

    自動車技術会学術講演会前刷集 No.63-10/自動車技術会  2010 

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  • WG2 活動報告:生体計測に基づく音質評価の試み(第2報)

    No.02-10自動車技術会シンポジウム20104444  2010 

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  • 2008-2009年度音質評価技術部門委員会の活動報告

    No.02-10自動車技術会シンポジウム20104442  2010 

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  • 感性評価に基づく快音設計

    戸井武司

    日本機械学会 音・振動快適化技術と新しい評価法研究会  2009.10 

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  • 製品組立ばらつきを考慮したパワーシート稼働音の音質安定化手法の開発

    戸井武司

    第9回振動騒音部門委員会,自動車技術会  2009.9 

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  • 感性評価に基づく快音設計

    戸井武司

    日本機械学会2009年度年次大会講演資料集,日本機械学会  2009.9 

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  • Sound quality evaluation by physiological information under complex stimuli

    Masao Yamaguchi, Hirofumi Horita, Masayuki Kuboki, Takeshi Toi

    Proc. of INTER-NOISE 2009/INCE  2009.8 

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  • Quantitative sound quality evaluation by using physiological information of autonomic nervous system

    Masao Yamaguchi, Masayuki Kuboki, Hirofumi Horita, Takeshi Toi

    Proc. of Sixteenth International Congress on Sound and Vibration/International Institute of Acoustics and Vibration  2009.7 

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  • The effect of noise and vibration of portable medical equipment on the human body and surrounding environment and their reduction

    Ryuuji NUMATA, Tuneo MASUDA, Hirofumi HORITA, Takeshi TOI

    第19回環境工学総合シンポジウム2009 No.09-13,日本機械学会  2009.7 

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  • Development of Weight Reduction Technique of Acoustic Insulation for Vehicle by Hybrid SEA Based on Experiment and Analysis

    Kazunobu Kurata, Takeshi Toi, Kazuya Harayama, Masahiro Kanagawa

    自動車技術会学術講演会前刷集 No.85-09,自動車技術会  2009.5 

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  • Examination of previous survey: "Expectations for the NV test engineers of the future"

    高野二郎, 山内章裕, 須藤晶, 戸井武司, 谷津幸裕, 川建治, 望月隆史, 森口金也, 中野光雄, 本田康裕

    振動騒音フォーラムテキストNo.09-02,自動車技術会  2009.5 

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  • Sound quality evaluation based on physiological information and comfortable sound design for precision information equipment with low noise

    Masayuki KUBOKI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Sound quality evaluation under multiple stimuli by physiological information

    Hirofumi HORITA, Masayuki KUBOKI, Masao YAMAGUCHI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Hybrid SEA by experiment and analysis in consideration of positional coordinate|rn| -Examination of sound pressure prediction technique by vehicle interior model-

    Kazunobu KURATA, Takeshi TOI, Kazuya HARAYAMA, Masahiro KANAGAWA

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Hybrid SEA by experiment and analysis in consideration of positional coordinate|rn| -Examination of sound pressure prediction technique by vehicle interior space-

    Kazunobu KURATA, Takeshi TOI, Kazuya HARAYAMA, Masahiro KANAGAWA

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Development of comfortable sound technique for digital equipment in consideration of operational feeling|rn| -Grasp of influence that weight and vibration give to operation sound-

    Yoshitaka ICHIKAWA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Development of comfortable sound technique for digital equipment in consideration of operational feeling|rn| -Sound design by addition sound source-

    Yoshitaka ICHIKAWA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Noise Reduction of Continuously Variable Transmission (CVT) for Automobile

    Hiroki AIKAWA, Nobuyuki OKUBO, Takeshi TOI, Yasuhide HIRABAYASHI

    関東支部第15期総会講演会講演論文集No.090-1,日本機械学会  2009.3 

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  • Creation of interior sound design for electric vehicle using sound effect

    Kazuki YOKOYMAMA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Development of sound quality stabilization technique for operation sound of simplified model in consideration of production assembly uncertainty

    Akira TAKEDA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Development of sound quality stabilization technique for operation sound of power sheet in consideration of production assembly uncertainty

    Akira TAKEDA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2009.3 

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  • Noise Reduction in Truck Cabin by Design Change of Floor Panel

    Nobuyuki OKUBO, Takeshi OKUMURA, Takeshi TOI

    Proc. of 27th International Modal Analysis Conference/Society for Experimental Mechanics  2009.2 

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  • 快音設計による快適な音創り

    戸井武司

    第24回ゴム製品設計力学研究分科会,日本ゴム協会  2009.2 

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  • Noise Reduction in Truck Cabin by Design Change of Floor Panel

    Proc. of 27th International Modal Analysis Conference/Society for Experimental Mechanic  2009 

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  • Noise Reduction of Continuously Variable Transmission (CVT) for Automobile

    2009 

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  • Creation of interior sound design for electric vehicle using sound effect

    2009 

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  • Development of comfortable sound technique for digital equipment in consideration of operational feeling -Sound design by addition sound source-

    2009 

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  • Development of comfortable sound technique for digital equipment in consideration of operational feeling -Grasp of influence that weight and vibration give to operation sound-

    2009 

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  • Hybrid SEA by experiment and analysis in consideration of positional coordinate -Examination of sound pressure prediction technique by vehicle interior space-

    2009 

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  • Hybrid SEA by experiment and analysis in consideration of positional coordinate -Examination of sound pressure prediction technique by vehicle interior model-

    2009 

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  • Development of sound quality stabilization technique for operation sound of simplified model in consideration of production assembly uncertainty

    2009 

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  • Development of sound quality stabilization technique for operation sound of power sheet in consideration of production assembly uncertainty

    2009 

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  • Quantitative sound quality evaluation by using physiological information of autonomic nervous system

    Proc. of Sixteenth International Congress on Sound and Vibration/International Institute of Acoustics and Vibration  2009 

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  • The effect of noise and vibration of portable medical equipment on the human body and surrounding environment and their reduction

    2009 

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  • Sound quality evaluation by physiological information under complex stimuli

    Proc. of INTER-NOISE 2009/INCE  2009 

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  • 操作感を考慮したデジタル機器の快音化手法の開発 -付加音源を用いたサウンドデザイン-

    日本音響学会講演論文集,日本音響学会  2009 

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  • 操作感を考慮したデジタル機器の快音化手法の開発 -重量および振動が操作音に与える影響の把握-

    日本音響学会講演論文集,日本音響学会  2009 

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  • 低騒音な精密情報機器の生体情報に基づく音質評価と快音設計

    日本音響学会講演論文集,日本音響学会  2009 

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  • 生体情報に基づく複合刺激下における音質評価

    日本音響学会講演論文集,日本音響学会  2009 

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  • 位置座標を考慮した実験と解析によるHybrid SEA -自動車車室内における音圧予測と精度検証-

    日本音響学会講演論文集,日本音響学会  2009 

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  • 位置座表を考慮した実験と解析によるHybrid SEA -自動車車室内モデルによる音圧予測手法の検討-

    日本音響学会講演論文集,日本音響学会  2009 

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  • 実験と解析のHybrid SEAによる自動車防音材の重量低減手法

    自動車技術会学術講演会前刷集 No.85-09,自動車技術会  2009 

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  • 実験と解析によるHybrid SEAを用いた高精度な自動車モデリング手法の開発

    自動車技術会学術講演会前刷集 No.85-09,自動車技術会  2009 

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  • 実験と解析のHybrid SEAによる車両の防音材低減手法の開発

    倉田一伸, 戸井武司

    第4回振動騒音部門委員会,自動車技術会  2008.11 

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  • Quantitative Sound Quality Evaluation by using Physiological Information

    Takeshi Toi, Masayuki Kuboki, Hirofumi Horita, Masao Yamaguchi

    Proc. of INTER-NOISE 2008/INCE  2008.10 

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  • Sound quality evaluation by using physiological information of autonomic nervous system

    Masayuki KUBOKI, Hirofumi HORITA, Masao YAMAGUCHI, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2008.9 

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  • The improvement of the acceleration sound quality of electric vehicle by using beat sound

    Kazuki YOKOYMAMA, Yasuyuki ASAHARA, Takeshi TOI

    日本音響学会講演論文集,日本音響学会  2008.9 

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  • Prediction on Vibration and Electromagnetic Field of Electric Motor for Noise Improvement

    Nobuyuki OKUBO, Hisakazu NARUKAMI, Takeshi TOI

    Proc. of ISMA2008/KU Leuven  2008.9 

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  • WG2 Activity Report : Trial for Sound Quality Evaluation Based on Physiological Measurement

    倉森章, 内山雅史, 関根道昭, 立川弘一, 星野博之, 八鍬喜規, 山田潤, 前田修, 村上和朋, 村田法生, 久保木将之, 戸井武司

    No.02-08自動車技術シンポジウム20084169,自動車技術会  2008.7 

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  • Activities Report for Fiscal 2006 to 2007 of Sound Quality Evaluation Technical Research Committee

    Takeshi Toi

    No.02-08自動車技術会シンポジウム20084169,自動車技術会  2008.7 

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  • Comfortable sound design for shutter of camera by using regression analysis

    Yoshitaka ICHIKAWA, Takeshi TOI

    第18回環境工学総合シンポジウム2008 No.08-7,日本機械学会  2008.7 

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  • Influence of acceleration sound quality by a change of motor sound in electric vehicle

    Kazuki YOKOYAMA, Yasuyuki ASAHARA, Takeshi TOI

    第18回環境工学総合シンポジウム2008 No.08-7,日本機械学会  2008.7 

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  • Aerodynamic Sound Prediction in Consideration of Acoustic Resonance Phenomenon by the Combination of Fluid Analysis and Acoustic Analysis

    Takashi NAKANO, Hiroshi MURAOKA, Takeshi TOI

    Proc. of Fifteenth International Congress on Sound and Vibration/International Institute of Acoustics and Vibration  2008.7 

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  • 快音設計による心地よい音創り

    戸井武司

    日本モーダル解析協議会  2008.7 

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  • Identification and Improvement of Vibration Uncertainty for Device with Multiple Uncertain Parts

    Nobuyuki OKUBO, Tsuyoshi ADACHI, Takeshi TOI

    Proc. of the XIth International Congress and Exposition/Society for Experimental Mechanics Inc.  2008.6 

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  • 操作感を考慮した快適な自動車スイッチ操作音の研究

    戸井武司

    第1回音質評価技術部門委員会,自動車技術会  2008.4 

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  • 五感に響く快適な音創りと快音設計

    戸井武司

    小売店と生活者の対話研究会,アーチャー新社  2008.4 

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  • Identification of Exciting Force for Tire Road Noise due to Road Surface

    Tsuyoshi SUZUKI, Nobuyuki OKUBO, Takeshi TOI, Kenji HIMENO

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008.3 

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  • Prediction of Vehicle Interior Sound Transmitted through Door Seal against Exterior Noise

    Ryo IWASAWA, Nobuyuki OKUBO, Takeshi TOI

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008.3 

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  • Radiation sound prediction from structure with internal rigid vibration source ~Influences to structure and acoustic field on sound source cavity boundary condition and its countermeasure~

    MINEZAKI Takahiro, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Development of active sound control technique in consideration of structural vibration

    FUJII Kenji, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Development of stabilization method of sound quality in precision information equipments having many kinds of sound sources

    YAMAGUCHI Masao, SHIRAKATA Sho, TOI Takeshi

    Proceedings of 2008 meeting, Acoustical Society of Japan  2008.3 

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  • Comfortable sound design using acoustic simulation for precision information equipments having many kinds of sound sources

    SHIRAKATA Sho, YAMAGUCHI Masao, TOI Takeshi

    Proceedings of 2008 meeting, Acoustical Society of Japan  2008.3 

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  • Investigation of comfortable automotive switch sound in consideration of tactile feeling-improvement of comfort by structural modification-

    KIUCHI Kenji, KOBAYASHI Ayumu, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Noise Reduction in Truck Cabin by Design Change of Floor Panel

    Takeshi OKUMURA, Nobuyuki OKUBO, Takeshi TOI, Hiroshi AKAMA

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008.3 

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  • Noise Evaluation of Hard Disk Drive in consideration of Robustness of Motor Excitation Force

    Katsumi IIZUKA, Nobuyuki OKUBO, Takeshi TOI, Takeyoshi YAMAMOTO, Masahiro JONO

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008.3 

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  • Robust Design of Structure with Multiple Uncertain Parts

    Tsuyoshi ADACHI, Nobuyuki OKUBO, Takeshi TOI, Yasuhiro MIYAZAWA, Toru SHIBAKI, Yoshinori KIMURA

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008.3 

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  • Comfortable design of automotive winker sound based on sound quality

    JINNAI Ryota, TOI Takeshi, HAMADA Yasushi, OHSUGI Ikuyo

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Radiation sound prediction from structure with internal rigid vibration source ~Investigation of air-born sound mechanism~

    MINEZAKI Takahiro, TOI Takeshi, SATO Isao

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Reduction of aerodynamic sound by control of turbulence energy and acoustic mode using structure modification

    NAKANO Takashi, TOI Takeshi, OKADA Masuhide, KAWASHIMA Yuriko

    日本音響学会講演論文集,日本音響学会  2008.3 

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  • Detective Diagnosis of Spur Gear in Consideration of Dynamic Characteristic of Gear Device

    Nobuyuki OKUBO, Kazuhiko MORIMOTO, Takeshi TOI

    Proc. of 26th International Modal Analysis Conference/Society for Experimental Mechanics  2008.2 

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  • Detective Diagnosis of Spur Gear in Consideration of Dynamic Characteristic of Gear Device

    Proc. of 26th International Modal Analysis Conference/Society for Experimental Mechanic  2008 

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  • Noise Reduction in Truck Cabin by Design Change of Floor Panel

    2008 

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  • Noise Evaluation of Hard Disk Drive in consideration of Robustness of Motor Excitation Force

    2008 

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  • Robust Design of Structure with Multiple Uncertain Parts

    2008 

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  • Comfortable design of automotive winker sound based on sound quality

    2008 

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  • Radiation sound prediction from structure with internal rigid vibration source ~Investigation of air-born sound mechanism~

    2008 

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  • Reduction of aerodynamic sound by control of turbulence energy and acoustic mode using structure modification

    2008 

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  • Identification and Improvement of Vibration Uncertainty for Device with Multiple Uncertain Parts

    Proc. of the XIth International Congress and Exposition/Society for Experimental Mechanics Inc.  2008 

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  • Comfortable sound design for shutter of camera by using regression analysis

    2008 

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  • Influence of acceleration sound quality by a change of motor sound in electric vehicle

    2008 

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  • Aerodynamic Sound Prediction in Consideration of Acoustic Resonance Phenomenon by the Combination of Fluid Analysis and Acoustic Analysis

    Proc. of Fifteenth International Congress on Sound and Vibration/International Institute of Acoustics and Vibration  2008 

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  • The improvement of the acceleration sound quality of electric vehicle by using beat sound

    2008 

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  • Prediction on Vibration and Electromagnetic Field of Electric Motor for Noise Improvement

    Proc. of ISMA2008/KU Leuven  2008 

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  • Quantitative Sound Quality Evaluation by using Physiological Information

    Proc. of INTER-NOISE 2008/INCE  2008 

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  • タイヤ道路騒音における路面からの起振力同定

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008 

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  • 自動車車室内へのドアシール透過音の予測

    関東支部第14期総会講演会講演論文集No.080-1,日本機械学会  2008 

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  • 内部に剛体振動源を有する構造物からの放射音予測~音源室境界条件による構造および音場への影響とその対策~

    日本音響学会講演論文集,日本音響学会  2008 

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  • 振動を考慮した能動的音響制御手法の開発

    日本音響学会講演論文集,日本音響学会  2008 

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  • 複数音源を有する精密情報機器の音質安定化手法の開発

    日本音響学会講演論文集,日本音響学会  2008 

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  • 複数音源を有する精密情報機器の音響シミュレーションを用いた快音設計

    日本音響学会講演論文集,日本音響学会  2008 

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  • 操作感を考慮した快適な自動車スイッチ操作音の研究-構造変更による快適性の向上-

    日本音響学会講演論文集,日本音響学会  2008 

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  • WG2活動報告:生体計測に基づく音質評価の試み

    No.02-08自動車技術シンポジウム20084169,自動車技術会  2008 

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  • 2006-2007年度音質評価技術部門委員会の活動報告

    No.02-08自動車技術会シンポジウム20084169,自動車技術会  2008 

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  • 自律神経系の生体情報を用いた音質評価

    日本音響学会講演論文集,日本音響学会  2008 

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  • Research of clear operation sound of car navigation system under interior cruising noise

    KIUCHI Kenji, KOBAYASHI Ayumu, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.9 

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  • Aerodynamic sound prediction in consideration of acoustic resonance phenomenon by the combination of fluid analysis and acoustic analysis

    中野高志, 村岡浩, 戸井武司

    研究発表会講演論文集,日本騒音制御工学会  2007.9 

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  • 生体計測を用いた定量的な音質評価

    山口雅夫, 吉田拓人, 大久保信行, 戸井武司

    日本モーダル解析協議会  2007.9 

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  • Creation of clear operation sound of car navigation system under interior cruising noise

    Takeshi TOI, Kenji KIUCHI

    Proc. of INTER-NOISE 2007/INCE  2007.8 

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  • Research of comfortable switch sound in consideration of tactile feeling

    Kenji KIUCHI, Ayumu KOBAYASHI, Takeshi TOI

    第17回環境工学総合シンポジウム2007 No.07-12,日本機械学会  2007.7 

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  • Sound quality evaluation of electric vehicles and their positions among internal combustion engine vehicles

    Kazuki YOKOYAMA, Yasuyuki ASAHARA, Takeshi TOI

    第17回環境工学総合シンポジウム2007 No.07-12,日本機械学会  2007.7 

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  • 実験SAEによる結合部を考慮した効率的エネルギー低減手法

    戸井武司

    第8回振動騒音部門委員会,自動車技術会  2007.7 

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  • Development of Acoustic Model for Automobile Interior in Consideration of Seat and Riding Person

    Shu NISHIDA, Nobuyuki OKUBO, Takeshi TOI

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007.3 

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  • Prediction on Vibration and Electromagnetic field of Motor

    Hisakazu NARUKAMI, Nobuyuki OKUBO, Takeshi TOI

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007.3 

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  • Design on comfortable shutter sound by use of kinematic analysis

    Nobuyuki OKUBO, Takeshi TOI

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007.3 

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  • Prediction on Vibration Behavior of Planetary Gear in Narrow Space

    Masayuki KIDOKORO, Nobuyuki OKUBO, Takeshi TOI, Toshihide UCHINO

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007.3 

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  • Sound quality evaluation of cyclic sounds in precision information equipments having many kinds of sound sources

    YAMAGUCHI Masao, SHIRAKATA Sho, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Rhythmical sense evaluation of cyclic sounds in precision information equipments having many kinds of sound sources

    SHIRAKATA Sho, YAMAGUCHI Masao, OKUBO Nobuyuki, TOI Takeshi

    Proceedings of 2007 meeting, Acoustical Society of Japan  2007.3 

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  • Sound quality evaluation by physiological measurement and its application to medical equipment

    YOSHIDA Hiroto, MASUDA Tsuneo, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Sound quality evaluation using peak value variation of respiration

    YOSHIDA Hiroto, YAMAGUCHI Masao, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Performance prediction and improvement of directional pattern of parametric speaker using numerical simulation

    SHIOZAWA Yasuo, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Radiation sound prediction from sealed structure with vibration source internally

    MINEZAKI Takahiro, YOKOYAMA Kazuki, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Basic investigation of effective energy reduction method in consideration of joints by experimental SEA

    TAHIRA Shun, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Application of effective energy reduction method in consideration of joints to actual structure by experimental SEA

    TAHIRA Shun, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2007.3 

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  • Robust Vibration Design for Automobile Suspension Based on Uncertainty Analysis

    Nobuyuki OKUBO, Jun TSUTSUMI, Takeshi TOI

    Proc. of 25th International Modal Analysis Conference/Society for Experimental Mechanics  2007.2 

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  • On the acoustic radiation characteristics of the bell that Gaudi envisaged in the Sagrada Familia Cathedral - Using a miniature bell

    堀本和総, 篠塚正啓, 吉川茂, 塩澤安生, 西田周, 戸井武司

    音響音響研究会MA2006-84,日本音響学会  2007.1 

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  • Robust Vibration Design for Automobile Suspension Based on Uncertainty Analysis

    Proc. of 25th International Modal Analysis Conference/Society for Experimental Mechanic  2007 

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  • Application of effective energy reduction method in consideration of joints to actual structure by experimental SEA

    2007 

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  • Creation of clear operation sound of car navigation system under interior cruising noise

    Proc. of INTER-NOISE 2007/INCE  2007 

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  • サグラダファミリア大聖堂においてガウディが構想したベルの音響放射特性について-ミニチュア・ベルを用いて

    音響音響研究会MA2006-84,日本音響学会  2007 

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  • 自動車シートと乗車する人を考慮した車室内音響モデルの構築

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007 

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  • モータの振動および電磁場予測

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007 

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  • 機構解析を用いたカメラシャッター音の快音化

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007 

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  • 狭い空間内における遊星歯車の振動挙動

    関東支部第13期総会講演会講演論文集No.070-1,日本機械学会  2007 

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  • 複数音源を有する精密情報機器における周期音の音質評価

    日本音響学会講演論文集,日本音響学会  2007 

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  • 複数音源を有する精密情報機器における周期音のリズム感評価

    日本音響学会講演論文集,日本音響学会  2007 

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  • 生体計測を用いた音質評価と医療機器への応用

    日本音響学会講演論文集,日本音響学会  2007 

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  • 呼吸のピーク値の変動を用いた音質評価

    日本音響学会講演論文集,日本音響学会  2007 

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  • 数値シミュレーションを用いたパラメトリックスピーカの性能予測と指向特性の改善

    日本音響学会講演論文集,日本音響学会  2007 

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  • 内部に振動源を有する密閉構造物からの放射音予測

    日本音響学会講演論文集,日本音響学会  2007 

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  • 実験SEAによる結合部を考慮した効率的エネルギ低減手法の基礎的検討

    日本音響学会講演論文集,日本音響学会  2007 

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  • 感触を考慮した快適なスイッチ操作音の研究

    第17回環境工学総合シンポジウム2007 No.07-12,日本機械学会  2007 

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  • EVの音質評価と内燃機関車両との位置付け

    第17回環境工学総合シンポジウム2007 No.07-12,日本機械学会  2007 

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  • スイッチの操作音と操作感の相関に関する研究-スイッチのバネ定数変更について-

    日本音響学会講演論文集,日本音響学会  2007 

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  • 流体解析および音響解析の連携による共鳴現象を考慮した流体音予測

    研究発表会講演論文集,日本騒音制御工学会  2007 

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  • Development of Comfortable NVH by Robust Design

    戸井武司

    No.16-06自動車技術シンポジウム20064807,自動車技術会  2006.12 

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  • 呼吸の揺らぎによる音質評価の可能

    吉田拓人, 戸井武司

    第5回音質評価技術部門委員会,自動車技術会  2006.12 

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  • Development of silent design technique for precision information appliance equipped with fans

    Takeshi TOI, Akihiro TODOROKI, Nobuyuki OKUBO, Hiroto IDO

    Proc. of INTER-NOISE 2006/INCE  2006.12 

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  • Research of clear operation sound of car navigation system under interior cruising noise

    Kenji KIUCHI, Takeshi TOI

    聴覚研究会,H-2006-121,日本音響学会  2006.11 

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  • 快音設計のすすめとその手順

    戸井武司

    広島県音・振動技術研究会  2006.11 

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  • Sound Source Identification for Precision Information Equipment Having Many Kinds of Sound Sources

    Sho SHIRAKATA, Masao YAMAGUCHI, Takeshi TOI

    The Journal of the Acoustical Society of America Fourth Joint Meeting: ASA and ASJ/Acoustical Society of America  2006.11 

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  • Sound Quality Evaluation of Transient Sounds in Precision Information Equipments

    Masao YAMAGUCHI, Sho SHIRAKATA, Takeshi TOI

    The Journal of the Acoustical Society of America Fourth Joint Meeting: ASA and ASJ/Acoustical Society of America  2006.11 

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  • Investigation of sound quality evaluation using respiration fluctuation

    YOSHIDA Hiroto, YAMAGUCHI Masao, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2006.9 

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  • Investigation of sound quality evaluation by physiological measurement

    YAMAGUCHI Masao, YOSHIDA Hiroto, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2006.9 

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  • Research of clear operation sound of car navigation system under interior cruising noise

    KIUCHI Kenji, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2006.9 

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  • Investigation of efficient ultrasonic device array using numerical simulation

    SHIOZAWA Yasuo, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2006.9 

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  • Identification of Excitation Force Generated From Automobile Engine in High Frequency Range

    Nobuyuki OKUBO, Satoru SHIMAMURA, Takeshi TOI

    Proc. of ISMA2006/KU Leuven  2006.9 

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  • Study on Sound Radiating Mechanism for an Airborne Ultrasonic Transducer

    Shinichi SAKAI, Kentaro YASUTAKE, Takeshi TOI, Yasuo SHIOZAWA, Tomoo KAMAKURA

    Proc. of 9th Western Pacific Acoustics Conference (WESPAC IX 2006)/The Acoustical Society of Korea  2006.6 

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  • Acoustic Simulation Technique for Bell and Percussion Instrument and Comfortable Sound Design

    戸井武司

    音楽音響研究会MA2006-5,日本音響学会  2006.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • 実走行環境を想定した自動車のコンポーネントテスト

    戸井武司

    第1回振動騒音部門委員会,自動車技術会  2006.5 

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    Language:Japanese  

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  • Study of Physiological Measurement for Sound Quality Evaluation

    村上和朋, 石川眞生, 立川弘, 大塚荘太, 星野博之, 渋谷広彦, 八鍬喜規, 前田 修, 桂直之, 関根道昭, 吉田拓人, 戸井武司

    Society of Automotive Engineers of Japan  2006.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • Comfortable car interior sound due to automotive glass

    Masahiro Shirasawa, Takeshi TOI, Nobuyuki OKUBO, Toru Takabayashi, Kazuhito Sato, Jiro Nishihama

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006.3 

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    Language:Japanese   Presentation type:Oral presentation (general)  

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  • Detective Diagnosis of Spur Gear in Consideration of Dynamic Characteristic of Gear Device

    Kazuhiko MORIMOTO, Nobuyuki OKUBO, Takeshi TOI, Tsuyoshi OKUMURA

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006.3 

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  • Development of Sound Quality Improvement Technique for Air Conditioner Outdoor Unit using Statistical Energy Analysis

    UEHARA Tadashi, Okubo Nobuyuki, TOI Takeshi, SHIRAISHI Hidetaka, KUMAZAWA Takeshi, SAWADA Hirotaka

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Study of sound radiation mechanism of Ultrasonic device (Part2) - Clarification of basic motion and improvement of structure investigation -

    SHIOZAWA Yasuo, OKUBO Nobuyuki, TOI Takeshi, YASUTAKE Kentaro, SAKAI Shinichi

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Study of sound radiation mechanism of ultrasonic device (Part1) - Measurement and analysis methods and basic behavior acquisition -

    YASUTAKE Kentaro, SAKAI Shinichi, SHIOZAWA Yasuo, OKUBO Nobuyuki, TOI Takeshi

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Development of Design Technique for Automobile Exhaust System in Consideration of Sound Quality

    ISHII Takuroh, OKUBO Nobuyuki, TOI Takeshi, KIKUCHI Satoshi, KOBAYASHI Atsuya, TSUDA Yasuhiro

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Development of Silent Design Technique for Precision Information Appliance Equipped with Fans

    TODOROKI Akihiro, OKUBO Nobuyuki, TOI Takeshi, IDO Hiroto

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Robust Vibration Design for Automobile Suspension Based on Uncertainty Analysis

    Jun TSUTSUMI, Takeshi TOI, Nobuyuki OKUBO

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006.3 

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  • Optimal Excitation in Highly-accelerated Life Test

    Kazuya KATO, Nobuyuki OKUBO, Takeshi TOI, Mituo Murakam, Hideaki KAKUMA

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006.3 

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  • Modeling of Stretch Reflex Response Characterized for Measurement of Distal Leg Linear Speed

    Takuhei MINAMI, Takeshi TOI, Nobuyuki OKUBO, Naotaka MAMIZUKA, Masataka SAKANE, Naoyuki OCHIAI

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006.3 

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  • 音響・振動解析技術の欧州での動向

    戸井武司

    第12回音質評価技術部門委員会,自動車技術会  2006.3 

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  • 油圧ブレーカにおける音質改善手法の開発

    依田康美, 大久保信行, 戸井武司, 手島淳慈, 湯浅文雄, 小柴英俊, 福田秀司

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • 油圧ブレーカの騒音発生メカニズム解明と目標音質設定

    依田康美, 大久保信行, 戸井武司, 手島淳慈, 湯浅文雄, 小柴英俊, 福田秀司

    日本音響学会講演論文集,日本音響学会  2006.3 

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  • Vehicle Component Test for Durability in Consideration of Actual Running Condition

    Proc. of 24th International Modal Analysis Conference/Society for Experimental Mechanic  2006 

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  • Robust Vibration Design for Automobile Suspension Based on Uncertainty Analysis

    2006 

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  • Optimal Excitation in Highly-accelerated Life Test

    2006 

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  • Modeling of Stretch Reflex Response Characterized for Measurement of Distal Leg Linear Speed

    2006 

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  • Study on Sound Radiating Mechanism for an Airborne Ultrasonic Transducer

    Proc. of 9th Western Pacific Acoustics Conference (WESPAC IX 2006)/The Acoustical Society of Korea  2006 

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  • Investigation of efficient ultrasonic device array using numerical simulation

    2006 

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  • Identification of Excitation Force Generated From Automobile Engine in High Frequency Range

    Proc. of ISMA2006/KU Leuven  2006 

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  • Sound Source Identification for Precision Information Equipment Having Many Kinds of Sound Sources

    The Journal of the Acoustical Society of America Fourth Joint Meeting: ASA and ASJ/Acoustical Society of America  2006 

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  • Sound Quality Evaluation of Transient Sounds in Precision Information Equipments

    The Journal of the Acoustical Society of America Fourth Joint Meeting: ASA and ASJ/Acoustical Society of America  2006 

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  • Development of silent design technique for precision information appliance equipped with fans

    Proc. of INTER-NOISE 2006/INCE  2006 

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  • Vehicle Component Test for Durability in Consideration of Actual Running Condition

    Nobuyuki OKUBO, Wenbin LI, Takeshi TOI

    Proc. of 24th International Modal Analysis Conference/Society for Experimental Mechanics  2006.1 

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  • 自動車ガラスによる車室内音環境の快適化

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006 

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  • 歯車装置の動特性を考慮した平歯車の異常診断

    関東支部第12期総会講演会講演論文集No.060-1,日本機械学会  2006 

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