大学物理 ›› 2009, Vol. 28 ›› Issue (9): 19-19.

• 著者文摘 • 上一篇    下一篇

线圈炮弹丸受力的两种表示及等价性

刘彦鹏 杨丽佳 欧阳建明   

  1. 国防科技大学理学院物理系,湖南长沙410073
  • 出版日期:2009-09-20 发布日期:2009-09-20

Two kinds of expressions and their equivalence of the force on the projectile in coilguns

  • Online:2009-09-20 Published:2009-09-20

摘要: 从物理学基本原理出发,以线圈炮的简单模型为例,导出了计算弹丸所受磁场力的两种表示。证明了它们的等价性,并把结论推广到一般线圈炮的情形。

关键词: 线圈炮, 电感梯度, 安培力, 等价性

Abstract: There are expressions of two kinds about how to calculate the magnetic force accelerating the projectile in coilguns. However, the inductance gradient expression had been quoted incorrectly by many researchers. It is necessary to demonstrate them correctly and prove their equivalent relation. In this paper, these problems are solved perfectly on the base of several physics principles.

Key words: coilgun, inductance gradient, Ampere force, equivalence

中图分类号: 

  • O441