Study On Piezoceramic-typed Active Vibration Isolator

This article makes theoretical and experimental research on an active vibration isolation system based on piezoceramic actuator .The whole system consists of piezoceramic material as the actuator, a shaker as the disturbance source, a double-layered vibration isolation system as the controlled object. The system introduces state-variables-feedback control methods carried out by an analog circuit. Research emphasizes on each parameter's influence on the performance of vibration isolation, and on how to ensure the vibration isolation effect of the controlled object. Author not only studied the theory of vibration isolation, but simulated the whole system based on it. each important parameter of the system was discussed and optimized with MATLAB language. Mechanical parts and circuital parts are designed and manufactured based on the optimized parameter. The ideas of the system for further study are proposed hi the last.