Acceleration sensors based dynamic hysteresis modeling and vibration control of PEAs

Piezoelectric actuators (PEAs) are widely used in active vibration control engineering. Dynamic hysteresis nonlinearities existing in the PEAs reduce the control accuracy. Using accelerometers for vibration control makes dynamic hysteresis modeling more challenging. In this study, a Hammerstein dynamic hysteresis model for a PEA is proposed based on the acceleration signal. Then, a hysteresis inverse compensator is designed and combined with an active vibration controller designed using PID method. Experimental results of a PEA validate the effective of the proposed model and controller based on the accelerometer.

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