Research of 6-DOF Active-Passive Vibration Protection Platform

The use of precision instruments and equipment require to consider the problem of six degrees of freedom vibration protection. To 6-DOF active-passive vibration protection platform, the key technologies have been studied with the simulation method, including two parts of the simulational modeling and controller design for the system. Taking into account the uncertainties from experimental modeling and vibration control purposes, Robust controller has been designed through the application of mixed sensitivity HiÞ-based. Final results show that active-passive vibration protection platform, can not only effectively isolate the interference of the foundation, but also better restrain the force directly on the platform.