DESIGN OF SIMULTANEOUS PERIODIC OUTPUT FEEDBACK CONTROL FOR SMART STRUCTURES

M. Umapathy∗ and B. Bandyopadhyay∗∗

Keywords

Smart structure, simultaneous control, output feedback, vibration control

Abstract

This paper presents the problem of modelling simultaneous periodic output feedback control design to control the first two vibration modes of a flexible smart cantilever beam. The entire structure is modeled by finite element method using a piezoelectric beam element which includes a piezoelectric sensor and actuator dynamics. Simulation results demonstrate that a single controller can be employed to control the first two vibration modes for six different sensor/actuator locations along the beam. Application of simultaneous control introduces a redundancy in smart structure control.

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