一、基本原理——“瞬时运动中心”简介刚体运动学理论指出,作平面运动的任意刚体在某一瞬时可认为刚体是绕运动平面内某一点的转动,该点称为刚体平面运动的“瞬时运动(转动)中心”。如果已知刚体上的任意两点运动速度方向,就能很容易地 First, the basic principle - “instantaneous movement center” Introduction Rigid kinematics theory pointed out that any rigid body for planar motion at a certain moment can be considered rigid body is a point around the plane of rotation movement, the point known as the rigid body plane movement “ Instantaneous movement (rotation) center. ” If you know the rigid body of any two moving speed direction, you can easily