Infleunce of one and two dimensional piezoelectric actuation on active vibration control of smart panels

摘要

The influence of directional piezoelectric actuation (d_31≠d_32), and isotorpic piezoelectric actuation (d_31=d_32) on static deflection and control behaviour of aluminum panels is evaluated through numerical experiments. A four-node Piezo-Elastic field consistent plate element based on Mindlin-Reissner theory is developed and the finite element procedure is implemented in MATLAB platform. An active control scheme using Linear Quadratic Regulator is adopted in modal domain for the first mode control. The control analysis shows that the actuator efficiency is significantly modified with boundary effects.