【摘要】 多点碰撞问题一直是多刚体动力学的难题之一。把Keller方法拓展到多点碰撞问题上,通过给定局部的力-位移模式,获得碰撞法向冲量的增量比,而这一比值与局部累计能量相联系。于是这一方法从本质上揭示出碰撞过程是一个能量的交换和传递的过程。更多还原

【Abstract】 Multi-impact is one of the more difficult problems for multi-body dynamics.A method for multi-impact is present on the basis of Keller’s impact equations.The relationship between the increment ratios of normal impulses of different impact points and the local accumulative energy is discovered if the contact force-displacement mode is given.The method indicates that impact is a process for energy exchange and transfer in nature.更多还原