教学讨论

非线性振动中周期与振幅和能量关系的级数表达式

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  • 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
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.

收稿日期: 2018-03-10

  修回日期: 2020-08-27

  网络出版日期: 2021-01-07

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

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  • 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 date: 2018-03-10

  Revised date: 2020-08-27

  Online 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.

本文引用格式

郝继光, 黄亦斌 . 非线性振动中周期与振幅和能量关系的级数表达式[J]. 大学物理, 2021 , 40(01) : 17 -20 . DOI: 10.16854 /j.cnki.1000-0712.180157

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.
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