The natural frequency, damping ratio and mode shape of a multi-degree-of-freedom system are analyzed and the identified results are in good agreement with the theoretical values.

并针对一多自由度系统具体论述了固有频率、阻尼比和振型的识别方法，识别结果与理论结果吻合较好。

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A decoupling control approach based on inverse system has been used for the innovative five degree-of-freedom bearing less induction motor, which is multi-variable, nonlinear and high coupling.

针对新型五自由度无轴承异步电动机这一多变量、非线性、强耦合的系统，采用逆系统的方法进行解耦控制。

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The system dynamic reliability of multi-degree-of-freedom (MDOF) system with random parameters and its upper and lower bounds is discussed.

对具有随机参数的多自由度体系，提出了求解其系统动力可靠度上、下限的一种计算方法。

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