浅谈杂技圆盘中的力学原理

Study on the Mechanical Principle in a Stunt-Rolling Disc

根据均质圆盘在水平面上的运动特点,解释了一个杂技项目:滚圆盘,阐述了其中涉及的力学原理.并应用理论力学的摩擦理论和平面运动微分方程,导出了圆盘运动参数的计算公式,得到了圆盘向回滚动的条件.

According to the motion characteristics of a even disc rolling on the horizontal plane,this paper explained a stunt： Rolling disc.We deduce a computing formula of motion parameters,and receive the rolling back conditions of disc with friction theory and differential equation of planar motion in Theoretical Mechanics.