再议秋千参数自激振动的数学模型与数值模拟
收稿日期: 2020-03-16
修回日期: 2020-05-20
网络出版日期: 2020-10-21
基金资助
国家自然科学基金项目(51575524)资助
Reconsideration of the mathematic model and numerical simulation of swing with parametric self-excited oscillation
Received date: 2020-03-16
Revised date: 2020-05-20
Online published: 2020-10-21
杨百愚, 王翠香, 王斌科, 李春旺, 范 琦, 田昌会 . 再议秋千参数自激振动的数学模型与数值模拟[J]. 大学物理, 2020 , 39(10) : 60 -63 . DOI: 10.16854 / j.cnki.1000 0712.200095
of pendulum ball relative to pendulum rod is designed. When the swing moves with a large angle，it can meet the
requirements of “squatting down on the highest point and standing up on the lowest point”，because its parameters
are independent of swing motion. On this basis，the dynamic differential equation of swing is established，and the
motion of swing is simulated numerically，the motion process，work and energy transformation mechanism of swing
are obtained.
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