Dynamic analysis of a laminated cylindrical shell with piezoelectric layers under dynamic loads

Dynamic analysis is presented for simply supported laminated cylindrical shell with orthotropic layers bounded with piezoelectric layers, subjected to local ring/pinch loads. The piezoelectric layers serve as sensor/actuator. The governing elasticity equations are reduced to ordinary differential equations by means of trigonometric function expansion. The resulting equations are solved by Galerkinʹs finite element in radial direction. The static results are compared with similar ones. The convergence is studied and natural frequencies are obtained. The radius to thickness ratio and band load width effect on dynamic behaviour is studied. Time responses for actuated shell are presented for different shell laminations.