混合隔振系统自适应模糊滑模控制

针对机械设备被动隔振在低频段隔振效果较差的问题，建立磁致伸缩作动器的电-磁-机转化数学模型，提出一种基于自适应模糊滑模控制算法，并用李雅普诺夫方法证明控制器的稳定性，将该控制策略与磁致伸缩作动器应用于混合隔振系统中。仿真结果表明：在单频、多频及随即激励条件下，自适应模糊滑模控制器具有良好的动态特性和鲁棒性，能够提高系统隔振效率并拓宽隔振频段，有效减小传至基础的力。

Adaptive Fuzzy Sliding-mode Controller for Hybrid Vibration Isolation Systems

According to the problems with a poor vibration isolation effect on the passive vibration isolation of mechanical equipment in low frequency, a mathematical model of electric-magnetic-machine conversion is established for the magnetostrictive actuator, and an adaptive fuzzy sliding mode control algorithm is proposed, the stability of the controller is also analyzed by Lyapunov method, then the control strategy and magnetostrictive actuator are used in hybrid vibration isolation system. The simulation results show that: Whether it's in the conditions of single frequency or multi-frequency and random excitation, the adaptive fuzzy sliding mode controller has good dynamic characteristics and robustness of the system, which can also improve the isolation efficiency and broaden the vibration isolation frequency band, and effectively reduce the force transmitted to the foundation.