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针对作定轴转动的弹性梁随着转动角速度的增加，其结构刚度随之增大——运动刚化的现象，用Ｒａｙｌｅｉｇｈ 能量近似法简便地得出了水平面内作定轴转动之弹性梁基频的运动刚化修正系数。对于柔度较大的弹性梁，主要由基频决定其振动性态。因此，该分析结果不仅可直观地反映弹性结构运动刚化现象的变化规律，而且可直接应用于水平面内作定轴转动之弹性梁的实时控制。
With the increase of rotational angular velocity, the structural rigidity of the elastic beam which rotates as the fixed axis increases - the phenomenon of rigid motion. By using the Rayleigh energy approximation method, the elastic beam with the fixed axis in the horizontal plane is easily obtained Frequencies of the movement of the rigid correction factor. For flexible beam with greater flexibility, the vibration frequency is mainly determined by the fundamental frequency. Therefore, the results of the analysis can not only directly reflect the changing law of the rigid structure of the elastic structure, but also can be directly applied to the real-time control of the elastic beam which rotates in the horizontal plane.