【摘要】 通过研究复摆的运动,提出定轴转动刚体固有属性的一种表达关系。这一固有属性反映了定轴转动刚体所特有的转动惯量与质量分布有关的几何特性。解释了复摆振动中心、打击中心、能量不变点三者重合的内在原因。并进一步分析刚体定轴转动的动量与对定轴动量矩的关系,并将结论应用到实际中。更多还原

【Abstract】 By rearching the motion of compound pendulum,it is observed that the inherent properties of fixed-axis rotation of rigid body can be discribed.It replies the special geometrical property between moment of inertia and mass distribution.And we tentatively proposed that the point of the center of oscillation is concide with the center of percussion and unvarying energy.Furthermore,relationship is synthetically analyzed between momentum and angular momentum of fixed-axis rotation of rigid body and is applied to practical example更多还原