【摘要】 本文(1)证明了刚体的绝对运动对瞬时速度中心的动量矩定理;(2)证明了刚体相对于瞬时速度中心平动坐标系的相对运动对瞬时速度中心的动量矩定理;(3)证明了上述两个定理可以写成统一的形式。此外,本文指出了某些参考资料关于这个问题的错误。最后举例说明本定理的应用。更多还原

【Abstract】 In this paper it is proved that. ( I ) the theorem of the angular momentum about the instantaneous center of zero velocity of the absolute motion of a rigid body; ( II ) the theorem of the anglar momentum about the instantaneous center of zero vetocity of the relative motion of a rigid body in the coordinate system which moves translatorily along with the instantaneous center of zero velocity; (III)these two theorems can be written into a unified form. In addition, some mistakes in the references about this problem are pointed out. Finally, application of the theorem is illustrated with some examples.更多还原