Vibration control of a smart beam structure subjected to actuator uncertainty: Experimental verification

Abstract

This paper presents a robust vibration control of a smart beam structure featuring the piezoceramic actuator. The hysteretic behavior of the actuator is experimentally identified and incorporated with the dynamic model to take account for the system uncertainty. The controller is then designed using the quantitative feedback theory that is a frequency domain technique to achieve robust control performances. The controller is experimentally realized and control responses are evaluated in time domain for both transient and forced vibration excitations.