基于并联机构的多自由度减振系统模糊控制

摘要:

采用并联机构为主体机构，以磁流变阻尼器为减振执行器，建立了三自由度减振平台模型。设计了基于模糊控制策略的半主动控制器，对机构的3条支路分别进行控制。采用ADAMS和Matlab软件联合仿真，并与无控状态下系统的振动进行对比，动平台的加速度峰值和均方根值均下降了40%。结果表明，建立的减振系统及所采取的控制算法达到了预期效果。

Abstract:

A mode of multi-dimensional damping platform was established, in which parallel mechanism was used as main mechanism and MR damper was used as performer. A semi-active controller was designed by using fuzzy algorithm, and it was applied to control three branches of the mechanism. The system was simulated by ADAMS and Matlab software. The simulated vibration effect under on fuzzy controller was compared with that under off controller. It was found that the acceleration peak value and mean square root value of the moving platform all dropped about 40%. The results showed that the damping system and control algorithm were effective to multi-dimensional damping. 