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将粒子群优化算法(PSO)与鲁棒H2/H∞控制思想结合,以系统传递函数矩阵为对象,优化其H2范数或H∞范数,并考虑系统稳定性条件,提出了鲁棒自稳定H2/H∞振动控制方法,并计算得到使系统稳定且控制效果最优的输出反馈控制器。以3层框架结构及其首层安置一双自由度精密装置这一综合系统为对象,考虑两种不同位置矩阵的铁路交通荷载,结果表明位置矩阵对优化影响较大;数值试验结果表明本文方法收敛速度快,计算耗时短,振动控制效果良好,为结构鲁棒振动控制提供了新思路。
By combining PSO with robust H2 / H∞ control ideas and taking the system transfer function matrix as an object, the H2 nor H∞ norm is optimized and the system stability conditions are considered. A robust self Stabilize the H2 / H∞ vibration control method and calculate the output feedback controller which makes the system stable and the control effect is optimal. Considering the railway traffic load of two different location matrices, the three-layer frame structure and the first floor of the integrated system with two degrees of freedom precision devices are considered. The results show that the location matrix has great influence on the optimization. The numerical results show that the proposed method converges It has the advantages of fast speed, short calculation time and good vibration control effect, which provides a new idea for the structure robust vibration control.