In this paper, dynamics of a rotating flexible beam is investigated by the assumed mode method.

采用假设模态法对旋转运动柔性梁的动力特性进行研究，给出简化的控制模型。

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To investigate the torsional vibration of the system, the dynamics governing equations of the system is established using the Lagrange equation and the assumed mode method.

为了研究此系统的扭转振动，运用拉格朗日方程和假设模态法建立了系统的动力学方程。

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