Vibration control of flexible beams using self-sensing actuators

This paper considers the design and implementation of a smart piezoelectric self-sensing actuator for active vibration control of flexible structures. A disturbance estimation technique is used for estimating the induced strain on a piezoelectric actuator, which results in a self-sensing piezo-actuator. The proposed self-sensing piezo-actuator is then applied for the elimination of vibration in a flexible beam structure, using a simple rate-feedback control. Simulation and experimental results for a cantilever beam are shown to demonstrate the accuracy of the proposed self-sensing actuator for vibration control.