Optimal placement and active vibration control of composite plates integrated piezoelectric sensor/actuator pairs

Abstract

This paper develops a finite element model based on first-order shear deformation theory for optimal placement and active vibration control of laminated composite plates with bonded distributed piezoelectric sensor/actuator pairs. The nine-node isoparametric rectangular element with five degrees of freedom for the mechanical displacements, and two electrical degrees of freedom is used. Genetic algorithm (GA) is applied to maximize the fundamental natural frequencies of plates and the constants feedback control method is used for the vibration control analysis of piezoelectric laminated composite plates. Numerical results showed the accuracy of the presented method against relevant published literatures.