The Design And Research Of Active Vibration Isolation Platform

In this paper, an active vibration isolation platform was designed for the actual scientific research, and the performance of the actuator and the whole system were simulated and tested.In addition, by combining the filter x-LMS algorithm with secondary path on-line identification method a new vibration active control method was proposed and simulated by using MATLAB in this thesis. Finally, the active vibration control simulation of active vibration isolation platform by using this method is studied.Above all, based on the preliminary scheme, the design of active vibration isolation platform was completed by considering installation requirements and the actual size of whole components. Secondly finite element calculation and experiments are established for analyzing the vibration isolation platform system. Thirdly, on the basis of the existed method,this thesis proposes a new active vibration control strategy by combining this method with the filtered x-LMS algorithm, and simulation investigations are conducted. The results of simulations demonstrated that not only the convergence speed of the method proposed by this paper is faster but also its residual error is less than the existed method. Finally, this article put forward the method to the multichannel cases, and simulations are conducted on the active vibration isolation platform system .The simulation results show that good control results are achieved for a variety of vibration conditions and the control system is robust compared with the others.