多模态柔性系统的最优时滞滤波器设计

Optimal Time Delay Filter Design of Multi-Mode Flexible Systems

时滞滤波器是一种消除柔性系统残留振动的有效方法。本文对多模态柔性系统的时滞滤波器设计进行了讨论。在最优随机时滞滤波器的基础上 ,通过使在某一频率下的残留振动最小 ,求出最优的时滞时间和频率 ,来设计最优时滞滤波器 ,消除系统中所有模态的残留振动。与一般的级联法相比 ,该方法减少了脉冲个数 ,大大减小了时滞时间 ,具有一定的鲁棒性。仿真结果进一步证明了该方法的有效性。

Time delay filter is a new method to reduce residual vibration of flexible system. A new optimal filter of multimode system is proposed to eliminate vibration of all modes, which contains less number of impulses than in common method. Comparing with the convolved time delay filter, this characteristic makes the optimal time-delay filter more attractive in terms of computational burden during the real-time implementation of the filter. Simulation results demonstrate the key results.