Design and Application of a Novel Piezoelectric Torsional Actuator

Abstract

In this paper, a piezoelectric torsional actuator generating angular displacement from piezoelectric shear strain is proposed. The procedure for the design, and manufacture of the piezoelectric torsional actuator are presented. To evaluate the performance of the proposed piezoelectric torsional actuator, the torsional vibration suppression of a flexible manipulator system with the proposed actuator is studied. The experimental results show the piezoelectric torsional actuator is capable of producing large torque and angular displacement and is suited for vibration suppression on flexible torsional manipulator system.