双滑块系统运动再研究

Further Study on Dual Slider System Movement

探讨了由楔块、滑块组成的双滑块系统在光滑水平面上的运动.常规经典方法求解时,采用纯滑动物理过程模型描述全过程,应用纯守恒定律求解是欠妥的.因为滑块越过动态二面角棱线时,会与水平面发生完全非弹性斜碰,机械能不再守恒,因此应采用滑动及完全非弹性斜碰物理过程模型组合来进行描述.

This paper discussed the movement of the dual slider system which consists of the slider and the wedge on a smooth horizontal plane. The conventional classic solving method used pure slide physical process model to describe the whole process, and the application of pure conservation law in solving is defective. When the slider gets across the dynamic dihedral angle at the ridge line, completely inelastic oblique collision happens between the slider and the smooth horizontal plane, and the mechanical energy is not conserved. Actually the physical process model combination of the sliding and completely inelastic oblique collision should be used to describe the process.