Intergrated optimization design for ultra-precision active vibration isolation platform based on the genetic algorithm

Abstract

This paper presents an approach to integrate structural and control parameters optimization for an active vibration isolation system based on the elitist strategy genetic algorithm. This method, which takes the total weighted root mean square of the acceleration of isolation platform, the dynamic deflection of isolation system and the dynamic displacement of the base as optimization performance indicators, combines mechanical structure design and LQG controller design for integrated optimization of active vibration isolation system. The theoretical analysis and simulation results demonstrate that the method can effectively improve the isolation effect of active vibration isolation system.