大学物理 ›› 2021, Vol. 40 ›› Issue (01): 17-20.doi: 10.16854 /j.cnki.1000-0712.180157

• 教学讨论 • 上一篇    下一篇

非线性振动中周期与振幅和能量关系的级数表达式

郝继光,黄亦斌   

  1. 1. 南昌市湾里区第一中学,江西南昌330004; 2. 江西师范大学物理与通信电子学院,江西南昌330022
  • 收稿日期:2018-03-10 修回日期:2020-08-27 出版日期:2021-01-07 发布日期:2021-01-07
  • 作者简介:郝继光( 1986—) ,男,江西永修人,南昌市湾里区第一中学高中物理一级教师.

The series expressions of relations between period and amplitude and energy for nonlinear vibration

HAO Ji-guang1,HUANG Yi-bin2   

  1. 1. The First Middle School of Wanli,Nanchang,Jiangxi,330004,China; 2. College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang,Jiangxi 330022,China
  • Received:2018-03-10 Revised:2020-08-27 Online:2021-01-07 Published:2021-01-07

摘要: 针对一般的一维非线性振动问题,讨论了周期与振幅和能量关系的级数解法,给出了直到4 阶的表达式和相关结果,并用单摆和中心力场的严格解进行了验证.

关键词: 非线性振动, 周期, 振幅, 能量, 级数

Abstract: The series expressions of relations between period and amplitude and energy are discussed for general one-dimensional nonlinear vibration,and solutions up to the fourth order are obtained. They are checked by the rigorous solution of two examples,i.e.,simple pendulum and central force.

Key words: nonlinear vibration, period, amplitude, energy, series