Effect of piezoelectric damping layers on the dynamic stability of plate under a thrust

In this study, the dynamic stability of plate with the active-damping layer under a thrust is investigated. The structure is actively damped by piezoelectric layers, and adopted a control algorithm for vibration suppression. Thin piezoelectric layers are assumed to be embedded on the top and the bottom surfaces of the structure. The top and the bottom layers are taken as the actuator and the sensor, respectively. ructure model is based on the first-order shear deformation plate theory, and the finite element method is applied in the numerical analysis. In addition, the method of multiple scales is adopted to analyze the parametrically excited system. This analysis is specifically focused on the mutual interaction of the thrust and the piezoelectric active-damping layer for the vibration suppression. In this paper, the effects of the active-damping layer with piezoelectric sensors/actuators are discussed in detail.