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An Improved Optimal Adaptive Control Method for MIMO Sine Vibration Control of a Multichannel Coupled System

[+] Author Affiliations
Chao Li, Zhangwei Chen

Zhejiang University, Hangzhou, China

Hongfei Zu

Zhejiang Sci-Tech University, Hangzhou, China

Yugang Zhao

Econ Techonologies Co., Ltd., Hangzhou, China

Paper No. IMECE2018-86983, pp. V011T01A009; 12 pages
doi:10.1115/IMECE2018-86983
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 11: Acoustics, Vibration, and Phononics
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5216-3
  • Copyright © 2018 by ASME

abstract

This paper proposes an improved optimal adaptive control algorithm to accelerate convergence for sine control of general multichannel coupled system, as well as enhance the stability. First of all, the convergence of traditional multi-input multi-output (MIMO) sine control method is analytically investigated in the presence of frequency response function (FRF) error. Then, the controller with the improved optimal adaptive control algorithm is developed, where a high-precision algorithm for amplitude and phase estimation is proposed to guarantee the accuracy of the response vector calculation. Numerical simulation results show that the proposed method possess excellent performance with fast convergence rate and strong robustness.

Copyright © 2018 by ASME

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