柯尼希定理在质点系中的应用  

Application of Koenig Theorem in Systems of Particle

作　　者：茹慧军[1] 

机构地区：[1]晋城职业技术学院机械与电子工程系,山西晋城048026

出　　处：《新乡学院学报》2011年第2期120-122,共3页Journal of Xinxiang University

摘　　要：从柯尼希定理出发,探讨了质点系中功与动能的关系及柯尼希定理在两体问题中的应用,结果说明,外力做功可以改变质点系的质心动能和相对动能,而内力做功只能改变质点系的相对动能,柯尼希定理是处理质点系问题特别是两体问题的一个简明有效的方法。Based on the Koenig theorem,we discussed the relation between work and kinetic energy in systems of particle and application of Koenig Theorem in two-body systems.It shows that works of external force change kinetic energy of center of mass and kinetic energy of relativity in systems of particle,while works of internal force only change kinetic energy of relativity in systems of particle.Koenig theorem is a concise and effective method in dealing with the problems of particles especially in tow-body systems.

关 键 词：柯尼希定理 质点系 功能关系 两体问题 

分 类 号：O313[理学—一般力学与力学基础]