Modal frequency and vibration response of the gear box are computed by structural FEM with a 3-d FE model.

建立齿轮箱三维有限元模型，采用结构有限元法计算齿轮箱模态频率和振动响应。

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Modal frequency and vibration response of the gear box are computed by structural FEM with a 3-d FE model.

建立齿轮箱三维有限元模型，采用结构有限元法计算齿轮箱模态频率和振动响应。

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