无阻尼固有频率 undampted natural frequency ; undamping natural fequency ; undamped natural frequency of a mechanical system
无阻尼固有振动模态 undamped natural mode of vibration
无阻尼固有圆频率 Undamped Natural Frequency
固有频率及阻尼 Natural Frequency and Damping
阻尼[固有]频率 damped frequency
阻尼固有频率 [物] damped natural frequency
斜拉桥拉索固有阻尼低、刚度小，容易引起大幅振动。
The large amplitude cable vibration often is induced due to low damping and small stiffness of stay cable.
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。
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.
大型构件在实际工作环境中的系统动态固有频率和粘性阻尼系数辨识一直是一个“棘手”的问题。
Identification of dynamic natural frequencies and viscosity damping coefficient for a large-scale structure in practical working condition is a very difficult problem.
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