High accuracy identification of external and transferred force to generate comfortable environment

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05863
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Toyohashi University of Technology
• Principal Investigator: Kawamura Shozo 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (00204777)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 外力同定 / 内力同定 / 逆問題 / 正則化 / 伝達経路解析 / 反共振点

Outline of Final Research Achievements

In this study, high accuracy identification methods of external and transferred force were proposed.
In the identification of external force for the case of unknown excitation points, the inverse problem of force identification is regularized by increase the number of frequency response function by adding a mass on the target structure. The identification method proposed was checked for the beam structure, and it was shown that the method was very useful for the actual application.
In the identification of transferred force, for the case using missed transfer paths, even if the resonance frequencies could be identified, some significant differences were observed in the anti-resonance frequencies in the restored responses. Therefore, it was shown that the proper paths could be judged by noting the anti-resonance frequencies of the restored responses. The method was checked for the structure with two stories, and it was shown that the method was very useful for the actual application.

Free Research Field

機械力学・制御