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力学与实践 ›› 2008, Vol. 30 ›› Issue (2): 108-109.doi: 10.6052/1000-0992-2007-484

• 力学纵横 • 上一篇    下一篇

荡秋千动力学过程的数值模拟

陈建平 陶秋帆 袁健   

  1. 南京航空航天大学 南京航空航天大学 南京航空航天大学
  • 收稿日期:2007-10-05 修回日期:1900-01-01 出版日期:2008-04-08 发布日期:2008-04-08

Numerical Simulation of Dynamics of Swaying a Swing

Jianping Chen   

  • Received:2007-10-05 Revised:1900-01-01 Online:2008-04-08 Published:2008-04-08

摘要: 根据人体在荡秋千过程中的动作特点,分别建立了秋千系统的四刚体力学模型和三刚体-柔 索力学模型,应用多体系统动力学理论数值模拟了荡秋千的动力学过程,分析了人体上下屈 伸频率和初始相位对秋千摆荡幅度的影响,获得了一些具有重要价值的结论.

关键词: 秋千, 动力学, 数值模拟

Abstract: Based on the action of a person on a swing, a rigid body system with three rigid bodies is developed to model the swing system. Then the dynamic process of the swing system is numerically simulated with the application of MSC ADAMS. The results show that the swaying amplitude of a swing is characteristically decided by the frequency and initial phase of the movement of the person on the swing. Some other important conclusions are also obtained.

Key words: Swing, Dynamics, Numerical simulation