参考点运动的角动量定理表达式

The Expression of Angular Monentum Theorem for the Reference Point Moved

本文导出了当参考点运动时的角动量定理表达式,并且阐明能简化到绕固定点转动的角动量定理表达式的条件,有助于我们在解决参考点运动的力学问题时,对此类问题能有一个清晰的概念和正确的分析.

This paper derives the expression of angular momentum theorem for the reference point moved,and states the condition under which it can be reduced to the expression showing rotation about the fixed point so that we can get a clear cencept and a correct analysis for mechanical prablems which are relative with the reference point moved, when we concretely solve this kind of problem.