Uncertainty Modeling of Structural Dynamics for Robust Vibration Control

WANG Feng;LI Dao-kui;LEI Yong-jun

Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (10) : 126-131.

PDF(1457 KB)
PDF(1457 KB)
Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (10) : 126-131.
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Uncertainty Modeling of Structural Dynamics for Robust Vibration Control

  • WANG Feng1;LI Dao-kui2;LEI Yong-jun2
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Abstract

A general synthesis frame for the design of robust controller for structural vibration is developed. Robust control theory of uncertain linear systems is introduced firstly. Uncertainty modeling of structural dynamics is then analyzed. The uncertainties include unmodeled high order dynamics, modal parameter error and modeling error of actuators and sensors. And mathematical model of these uncertainties are formulated properly. Finally, the vibration control problem is brought into the framework of robust control theory, and the stability and performance of the closed system are insured as long as the model errors fall into the prescribed bounds.

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vibration control / robust control / uncertainty modeling

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WANG Feng;LI Dao-kui;LEI Yong-jun. Uncertainty Modeling of Structural Dynamics for Robust Vibration Control[J]. Journal of Vibration and Shock, 2009, 28(10): 126-131
PDF(1457 KB)

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