刚体平面运动时动力学问题的一种求解方法探索

摘要

With the planar motion of rigid body,this paper discusses the theorem of angular momentum,and determinates the theorem of angular momentum to zero velocity point of pure rolled rigid body and homogeneous bar.Applying this method,the solutions become very simple in dynamics.%刚体平面运动时,应用质点系对动点的动量矩定理,得出纯滚动的刚体和平面运动均质杆对速度瞬心的动量矩定理,应用其求解动力学问题比较简捷。