一个计算简单而实用的单摆周期近似公式
收稿日期: 2020-03-05
修回日期: 2020-04-17
网络出版日期: 2020-10-16
基金资助
甘肃省高等学校产业支撑引导项目(2019C-20)资助
A simple and practical approximate formula for the period of simple pendulum
Received date: 2020-03-05
Revised date: 2020-04-17
Online published: 2020-10-16
杨天虎, 岳志明, 李玉宏 . 一个计算简单而实用的单摆周期近似公式[J]. 大学物理, 2020 , 39(10) : 18 -21 . DOI: 10.16854 / j.cnki.10000712.200071
Through the analysis and derivation of the power series of the accurate solution of the simple pendulum period,a simple,convenient and practical approximate formula of the simple pendulum period is given,and the relative error is less than 0.05% in the range of amplitude nearly 180°.
Key words: simple pendulum period; elliptic integral; approximate formula
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