研究者詳細 - 大浦　靖典

論文 - 大浦　靖典

分割表示23 件中 1 - 20 件目／全件表示 >>

Experimental verification of a translation model of linear transfer function of ultrasonic vibrations with nonlinear wave modulation for detection of contact-type failures

31 994 - 1004 2025年3月

Measurement of natural vibration of multi-degree-of-freedom system with large damping by multi-point excitation using local feedback control

Takashi Tanaka, Hiroki Nakao, Yasunori Oura

AIP Conference Proceedings: Proceedings of the 13th TSME-ICoME 2023 3236 ( 1 ) 2024年10月

薄肉円筒工作物の切削加工時に発生する工作物変形型びびり振動（一巡伝達関数を用いたびびり振動の発生予測）

栗田裕, 大浦靖典, 田中昂, 川田昌宏

日本機械学会論文集 90 2024年8月

ディスクブレーキにおける面内鳴きの発生メカニズム（低自由度の解析モデルによる鳴き発生条件の検討）査読

大浦靖典，田中昂，栗田裕

日本機械学会論文集 90 ( 930 ) 2024年2月

Measurement of natural vibration of multi-degree-of-freedom system with large damping by multi-point excitation using local feedback control

2023年

Evaluation of contact-type failure development based on frequency modulation due to nonlinear wave modulation utilising self-excited ultrasonic natural vibration 査読

Takashi Tanaka, Yasunori Oura, Syuya Maeda

International Journal of Condition Monitoring and Diagnostic Engineering Managemen 25 ( 2 ) 59 - 66 2022年6月

Evaluation of Contact-Type Failure Using Frequency Fluctuation Caused by Nonlinear Wave Modulation Utilizing Self-excited Ultrasonic Vibration 査読

Takashi Tanaka, Yasunori Oura, Syuya Maeda, Zhiqiang Wu

Lecture Notes in Mechanical Engineering: Proceedings of International Congress and Workshop on Industrial AI 2021 2022年2月

Localization method of contact-type failure by measuring the structural intensity of low-frequency vibrations caused by frequency down-conversion of elastic vibrations 査読

Takashi Tanaka, Junnosuke Asano, Yasunori Oura

Mechanical Engineering Journal 8 ( 5 ) 20-00201 2021年10月

Excitation of ultrasonic natural vibrations by multi-Excitation using decentralized control for failure monitoring 査読国際誌

Takashi Tanaka, Takato Tamura, Yasunori Oura

Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems No. SMASIS2021-67457 2021年9月

Localization of multiple contact-type failures using structural intensity of low-frequency vibration caused by frequency down-conversion 査読国際誌

Takashi Tanaka, Junnosuke Asano, Yasunori Oura

Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems No. SMASIS2021-67739 2021年9月

Detection of contact-type failure based on nonlinear wave modulation utilising ultrasonic vibration driven by self-excitation 査読国際誌

Takashi Tanaka, Yasunori Oura, Syuya Maeda

International Journal of Condition Monitoring and Diagnostic Engineering Management Vol. 24 ( No. 2 ) 43 - 49 2021年4月

非線形波動変調によって生じる固有振動数変動を用いた接触型損傷の程度評価（時刻歴応答解析による固有振動数変動推定手法の検討）査読

田中昂, 大浦靖典, 前田秀哉，呉志強

日本機械学会論文集 86 ( 889 ) 2020年9月

分散制御による多自由度振動系の共振点駆動（局所フィードバック制御とクロスフィードバック制御による大自由度・大減衰システムの固有振動励起）査読

田中昂, 栗田裕, 大浦靖典, 上原大貴

日本機械学会論文集 86 ( 887 ) 2020年6月

薄肉円筒工作物の切削加工時に発生する工作物変形型びびり振動（びびり振動の発生メカニズム）査読

栗田裕，大浦靖典，田中昂，川田昌宏

日本機械学会論文集 86 ( 884 ) 2020年4月

Detection Method of Contact-Type Failure Based on Nonlinear Wave Modulation Utilizing Ultrasonic Vibration Driven by Self-excitation 査読

Tanaka T., Oura Y., Maeda S.

Smart Innovation, Systems and Technologies 166 79 - 89 2020年1月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Smart Innovation, Systems and Technologies

This paper introduces the concept of new detection method of contact-type failure based on nonlinear wave modulation utilizing ultrasonic vibration driven by self-excitation. It is difficult to detect the contact-type failure in standard inspection utilizing linear ultrasonic vibration. The constructional element of infrastructure is excited by environmental disturbance or forced excitation. In this situation, the contact condition of the failure fluctuates in synchronization with vibration. As this result, local stiffness in the vicinity of failure location fluctuates at the vibration frequency. Thereby, the amplitude and phase of ultrasonic vibration are modulated caused by local stiffness fluctuation (nonlinear wave modulation). This phenomenon can be expressed by a linear time-varying system caused by fluctuation of the natural frequency. In this paper, the new detection method of contact-type failure utilizing self-excited ultrasonic vibration is introduced. Firstly, the concept of detection method of contact-type damage based on nonlinear wave modulation is proposed. It is indicated from time history response analysis using single degree-of-freedom model of nonlinear wave modulation that the fluctuation amplitude of the amplitude and phase of ultrasonic as failure index varies depending on viscous damping. Secondly, the self-excited method utilizing local feedback control and characteristics are introduced. This method realizes oscillator which start to oscillate at the natural frequency automatically. Thus, the frequency of oscillation signal controlled by local feedback control is fluctuated in synchronization with fluctuation of natural frequency when nonlinear wave modulation occurred. Lastly, it is proved that the fluctuation amplitude of frequency of oscillation signal is the failure index independent of viscous damping.

DOI： 10.1007/978-3-030-57745-2_8

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85091270496&origin=inward

ディスクブレーキの鳴きに及ぼすパッドの表面性状の影響査読

西澤幸男，栗田裕，大浦靖典，小坂享子

日本機械学会論文集C編 78 ( 786 ) 382 - 395 2012年2月

楕円振動を利用した分別搬送（接触面隙間の大きさによる分別）（共著）査読

栗田裕，大浦靖典，神田真輔，藤田佳孝

日本機械学会論文集C編 78 ( 785 ) 35 - 49 2012年1月

パッドの非線形な動的ばね剛性を考慮したディスクブレーキ鳴きのFEM解析(共著) 査読

西澤幸男，栗田裕，大浦靖典，野中雄之

自動車技術会論文集 42 ( 3 ) 697 - 702 2011年5月

Driving at Resonance Point of Multi-Degree-of-Freedom System by Decentralized Control (Development of Control Method and Verification of Basic Performance) （共著）査読

Yutaka Kurita, Yasunori Oura, Shigekatsu Matsuda and Hajime Nishide

Journal of System Design and Dynamics 5 ( 1 ) 180 - 191 2011年1月

Influence of Brake Pad Thickness on Disk Brake Squeal （共著）査読

Yasunori OURA, Yutaka KURITA, Yukio NISHIZAWA and Kyoko KOSAKA

Journal of System Design and Dynamics, 4 ( 6 ) 970 - 983 2010年12月

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