平面运动刚体动能计算的探讨  

Discussion on Kinetic Energy Calculations of Plane Motion of Rigid Body

作　　者：赵玉成[1] 杨卫明[1] 陈培见 

机构地区：[1]中国矿业大学力学与建筑工程学院力学系,江苏徐州221116

出　　处：《菏泽学院学报》2016年第2期53-56,共4页Journal of Heze University

摘　　要：基于刚体的平面运动可看作是绕过瞬心的瞬时轴的转动,就直接给出类似定轴转动刚体的动能计算公式是否合理?刚体平面运动可以分解为随同基点的平动和绕基点转动的合成,那么平面运动刚体的动能是否等于随同基点平动的动能和相对基点转动动能之和?本文对以上问题进行了详细的分析和探讨.The plane motion based on the rigid body can be regarded as the rotation of the instantaneous axis of the instantaneous center.Whether is it reasonable to give the calculation formula of the kinetic energy of a similar rigid body with a fixed axis rotation？The plane motion of a rigid body can be decomposed into synthetic base along with the translation and the rotation point,then,is the kinetic energy of the plane motion of a rigid body equal to amount of the kinetic energy along with the basis of translational and rotational kinetic energy and the relative points？In this paper,the above issues are analyzed and discussed in detail.

关 键 词：质点系 刚体 平面运动 动能 

分 类 号：O313.3[理学—一般力学与力学基础]