ACTIVE CONTROL OF PIEZOELECTRIC INTELLIGENT ANNULAR PLATES 1)

In recent years, piezoelectric intelligent materials have been widely used as sensors and actuators in structural shape control, vibration control, etc. It has wide and active field in research and application. The structures with large sized, low stiffness and flexibility are important characteristics in space flight industry. But, because modal damping of the structure is small, when an outside shock force or interference force acts to the structure, it will cause much large deformation and vibration of...