物体的运动学分析

Analysis of kinematics about Body

点的运动学,点的合成运动和刚体的平面运动是理论力学中运动学的主干内容,又是机构运动分析的基础。对物体运动的描述,由于所选取的参考系不同,就构成其物体运动学研究的不同。但是,不同参考系下的运动量之间又有着相互联系,本文试图说明不同参考系下物体运动量之间的区别和联系。

On the one hand, kinematics of a particle, resultant motion of a particle and resultant motion of a rigid body are basis of kinematics in theoretical mechanics. On the other hand, they are also basis of mechanism analysis. Motion of a particle and a rigid body are descibed with respect to reference system. Body motion in different reference system has connection and difference each other. They are tried to be discussed by this paper.