Vibration suppression with optimal sensor/actuator location and feedback gain

Shih-Ming Yang, Y. J. Lee

研究成果: Article同行評審

37 引文 斯高帕斯(Scopus)


An analytical model is developed for structure vibration suppression with collocated piezoelectric sensor/actuator in optimal placement and optimal feedback gain. Two different control algorithms-active damping control and output feedback control-are applied to obtain the control law, and the optimal set of sensor/actuator location and feedback gain is determined by the modified method of feasible direction. Analytical results show that a collocated piezoelectric actuator/sensor can lead to instability of the closed loop system. In active damping control, the optimal sensor/actuator location is not at the root of a cantilever beam as commonly believed. However, for LQ formulation of output feedback control, the optimal location is at the beam root with the feedback gain determined by the Ricatti equation. The analytical predictions are verified by experiments.

頁(從 - 到)232-239
期刊Smart Materials and Structures
出版狀態Published - 1993

All Science Journal Classification (ASJC) codes

  • 訊號處理
  • 原子與分子物理與光學
  • 土木與結構工程
  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 電氣與電子工程


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