Volume 35 Issue 8
Aug.  2009
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Yang Haifeng, Wang Xiaojun, Qiu Zhipinget al. Robust vibration control of flexible piezoelectric structure[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(8): 957-961. (in Chinese)
Citation: Yang Haifeng, Wang Xiaojun, Qiu Zhipinget al. Robust vibration control of flexible piezoelectric structure[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(8): 957-961. (in Chinese)

Robust vibration control of flexible piezoelectric structure

  • Received Date: 14 Jul 2008
  • Publish Date: 31 Aug 2009
  • The robust vibration control for the flexible cantilever beam system with polytopic-type uncertainties and environmental disturbances is studied. Based on the state equation, the improved multi-objective H2/H state-feedback robust control method is proposed for the flexible cantilever beam system by using a kind of extended linear matrix inequality (LMI). The presented method, which introduces multi Lyapunov functions for the polytopic-type uncertainties system, reduces the conservatism stemmed from the single Lyapunov function used in the unimproved method. The robust vibration control for the flexible cantilever beam system is simulated in Matlab by these two methods respectively. The results show that the flexible cantilever beam is well controlled via the two methods, and the improved method gets a better result.

     

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