基于LQR控制算法的双层混合隔振系统优化设计

Optimization of double-layer hybrid vibration isolation system based on LQR algorithm

针对基于LQR控制算法设计的控制器并不能实现混合隔振系统的全局优化问题的现状,提出了邻域繁殖遗传算法双层隔振系统进行优化设计的方法,并对基于LQR控制算法的双层混合隔振系统进行了多目标优化设计和分析。结果表明:双层混合隔振系统在降低系统力传递率的同时,并没有加剧机械设备振动,从而为混合隔振系统优化设计提供了一种思路。

The LQR algorithm is widely used in the hybrid vibration isolation system. However, it cannot integrate the hybrid vibration isolation system into a global optimizationdesign with the coup- ling of structure and controller. Hence, the multi-object optimal design of the double-layer hybrid vi- bration isolation system based on the LQR algorithm is made by the NCGA method. The results show that the vibration of the meehanical equipment does not get worse with the reduction of the force transmission ratio. It offers an approach to the optimal design of the hybrid vibration isolation system.