第一阶模态振型相对均值系统的变化很小。一般地，结构参数的随机变异对模态振型均值的影响大于对模态频率、模态阻尼比均值的影响。
In general, the variation of structure parameters has more effect on the mean values of mode than those of modal frequencies and modal damping ratios.
该控制器适于参数随机变化或快时变系统。
This controller is suitable for stochastic parameters or time varying fast systems.
该控制器适于参数随机变化或快时变系统。
This controller is suitable for stochastic parameters or fast time varying systems.
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