double-sided polishing machine grinding plate vibration

 Vibrations that affect the quality of ultra-precision machining of the key factors, spring-loaded double-sided polishing machine during polishing of the grinding plate vibration phenomena seriously hampered the accuracy of product processing. To solve this problem, a spring-loaded device in the MR damper added method by controlling the magnetorheological damper damping to achieve the double-sided polishing grinding wheel china  and grinding disc on a semi-active control of vibration in order to achieve vibration suppression effect. First, the improved pressure loading system for mathematical modeling, has been on the polishing process grinding plate equations of motion; Then, the semi-active control of the control strategy designed to get its control algorithm; Finally, in Simulink in semi-active control strategy for the system simulation analysis, and simulation results with  nonwoven belt and without control system simulation results were compared and analyzed. Comparative analysis showed that the design of semi-active control method can effectively inhibit the double-sided polishing machine grinding plate vibration phenomena.Simulation using finite element analysis software from cast iron, tin, PTFE and other materials combined into a grinding disc, grinding disc loading conditions with maximum deformation relationship. The results show that cut off wheel  the grinding disc material elastic modulus, the greater the smaller the maximum deformation; with a hard material for the substrate, the soft material bonded to the surface of rigid material together form a grinding disc, grinding disc loaded far less than the amount of deformation of soft materials used alone as the grinding