大学物理 ›› 2010, Vol. 29 ›› Issue (4): 22-22.

• 著者文摘 • 上一篇    下一篇

合力为零的经典质点拉格朗日函数

丁光涛   

  1. 安徽师范大学物理与电子信息学院,安徽芜湖241000
  • 出版日期:2010-04-25 发布日期:2010-04-20

The Lagrangian function of a classical particle with zero-total force

  • Online:2010-04-25 Published:2010-04-20

摘要: 运用拉格朗日力学逆问题理论和方法,得到合力为零的经典质点两类等效拉格朗日函数.这些函数可以与时间、质点的位置矢量和速度矢量相关,并非只能是速度大小的函数.

关键词: 拉格朗日函数, 质点, 拉格朗日力学逆问题, 等效的拉格朗日函数

Abstract: Using the theory and methods of the inverse problem in Lagrangian mechanics, two kinds of equivalent Lagrangian functions of a classical particle with zero-total force are obtained. These Lagrangian functions depend on time, the radius vector and vector velocity of the particle, but need not be a function of magnitude of velocity only.

Key words: Lagrangian function, particle, inverse problem in Lagrangian mechanics, equivalent Lagrangian function

中图分类号: 

  • O320