Adaptive vibration control for a cantilevered beam using actuating and sensing functions of a piezoelectric bimorph

The paper investigates that the free vibration for a smart cantilevered beam utilizing actuating and sensing properties of a piezoelectric bimorph is suppressed by a adaptive controller. Through the bimorph, the suppression vibration of a flexible cantilevered beam is studied. Because of uncertain parameters in the dynamic model, a adaptive control is adopted with a minimum variance self-tuning direct regulator to control the free vibration of the smart beam. By some simulation and experiment verifications, the adaptive control is proved to be feasible for attenuating the free vibration of the smart beam.