大学物理 ›› 2019, Vol. 38 ›› Issue (9): 15-.doi: 10.16854 /j.cnki.1000-0712.180694

• 教学讨论 • 上一篇    下一篇

带电粒子在4 个固定点电荷电场中的阻尼振动

赵立强   

  1. 北京物资学院物流学院,北京101149
  • 收稿日期:2018-12-24 修回日期:2019-03-25 出版日期:2019-09-20 发布日期:2019-10-16
  • 作者简介:赵立强( 1964—) ,男,山东滨州人,北京物资学院物流学院副教授,主要从事大学物理实验和物流实验技术方面的教学与科研工作.
  • 基金资助:
    北京物资学院物流实验教学中心室资助项目( wykyxm201801zlq) 资助

Damping oscillation of charged particles in the electric field of four fixed points charges

ZHAO Li-qiang   

  1. School of Logistics,Beijing Wuzi University,Beijing 101149,China
  • Received:2018-12-24 Revised:2019-03-25 Online:2019-09-20 Published:2019-10-16

摘要: 基于库仑定律和牛顿第二定律,理论表示出了带电粒子在4 个固定点电荷电场中阻尼振动的动力学方程并求出了解析解.分析讨论了欠阻尼、临界阻尼和过阻尼的条件,最后利用Matlab 数学软件画出了算例图像.

关键词: 带电粒子, 4 个固定点电荷电场, 阻尼振动, 算例图像

Abstract: Based on the Coulomb law and the Newton second law,the damping vibration dynamic equation of charged particles in four fixed points charge electric field is theoretically expressed and the analytical solution is obtained. The conditions of under-damp,critical damp and over-damp are analyzed and discussed. Finally,some example images are drawn by using MATLAB mathematical software.

Key words: charged particles, electric field of four fixed point charge, damping vibration, example images