This paper takes a type gas turbine rotor as an example to analyze its natural frequency and modal shape.
介绍了某型燃气轮机转子模态试验，试验测得转子静态固有频率和模态振型。
In view of the locally severe vibration of a 125 motorcycle, the paper makes a structure modal analysis with ANSYS to get the natural frequency and the vibration mode of the frame.
针对某125摩托车局部振动比较严重，采用有限元分析软件ANSYS，对该款车架进行了结构模态分析，得到车架固有频率和振型。
The natural frequency and vibration mode are the principal modal parameters representing structure dynamic behavior as well as the important basis for evaluating bridge dynamic performance.
固有频率和振型是反映结构动力特性的主要模态参数，是评价桥梁动力性能的重要依据。
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