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Vibration control of flexible beam through smart structure concept using periodic output feedback.

100%

Umapathy M. , Bandopadhyay B.

2000

tom Vol. 26, nr 1

43-66

A periodic output feedback vibration control system for flexible smart cantilever beam is designed by bonding piezoelectric as a sensor/actuator to the structure. The entire structure is modelled by finite element method using piezoelectric beam element which includes sensor/actuator dynamics and a regular beam element. By retaining the first two vibratory modes the reduced order model is obtained in state space form. The effect on vibration modes for various sensor/actuator locations along the beam is observed. The periodic output feedback controller is designed and its performance for various sensor/actuator locations is done.