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RESEARCH PAPERS

Simultaneous Optimization of Structure and Control for Vibration Suppression

[+] Author and Article Information
Ye Zhu, Jinhao Qiu, Junji Tani

Institute of Fluid Science, Tohoku University, Katahira 2-1-1, Aobaku, Sendai, Japan

Yuta Urushiyama, Yasuharu Hontani

Honda R&D Co., Ltd. Japan, Tochigi R&D Center, 4630 Shimotakanezawa, Haga-machi, Haga-gun, Tochigi 321-33, Japan

J. Vib. Acoust 121(2), 237-243 (Apr 01, 1999) (7 pages) doi:10.1115/1.2893970 History: Received November 01, 1998; Online February 26, 2008

Abstract

A method of simultaneous optimization of structure and control using mixed H2 and H∞ norms of the transfer function as the objective function is proposed and the modeling and formulation of simultaneous optimization problems associated with this approach are discussed in this paper. Simultaneous optimization is realized by iteratively executing structural optimization and controller optimization. Both serial and parallel approaches to combine structural optimization and controller optimization are investigated. They are applied to the simultaneous optimization of the cross-sectional parameters of a spring-supported beam and the parameters of the controller used to actively suppress the vibration of the beam. The performance of both displacement output and control input is improved significantly after simultaneous optimization. The simulation results show the great potential advantages of simultaneous optimization over traditional design methods and the effectiveness of the proposed approach.

Copyright © 1999 by The American Society of Mechanical Engineers
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