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力学与实践 ›› 2018, Vol. 40 ›› Issue (4): 362-366.doi: 10.6052/1000-0879-18-044

• 应用研究 • 上一篇    下一篇

自行车上台阶的碰撞模型分析

王禹衡*, 邱信明†,1)   

  1. *清华大学机械工程系,北京 100084;
    †清华大学航天航空学院, 北京 100084
  • 收稿日期:2018-01-25 出版日期:2018-08-08 发布日期:2018-09-11
  • 通讯作者: 1) E-mail: qxm@mail.tsinghua.edu.cn

THE COLLISION MODEL OF THE BICYCLE ROLLING UP A STEP

WANG Yuheng*, QIU Xinming†,1)   

  1. * Department of Mechanical Engineering, Tsinghua University, Beijing 100084,China
    †School of Aerospace Engineering, Tsinghua University, Beijing 100084, China
  • Received:2018-01-25 Online:2018-08-08 Published:2018-09-11

摘要: 自行车前车轮与台阶发生斜碰撞以后可能落上台阶,也可能弹回地面,后者容易引发侧翻或倾倒的事故。本文将建立一个基于恢复系数的通用薄车轮台阶碰撞模型,并通过一个实际案例代入具体参数数值,得出此案例下车轮速度大小与速度方向的安全可行域,并讨论台阶高度对可行域的影响。

关键词: 碰撞模型|恢复系数

Abstract: In colliding with a step, the front wheel of the bicycle may roll up the step or spring back to the ground. In the latter case, a rollover or a dumping accident may happen. In this study, a general collision model based on the coefficient of the restitution (COR) is built.The safe ranges of the wheel speed and the velocity direction are obtained. Besides, the influence of the step height is also discussed.

Key words: collision model|coefficient of restitution

中图分类号: 

  • O313.4