Theoretical Mechanics Chapter 19: Impact
1 Theoretical Mechanics
里论力学 第十撞
2
Dynamic In the preceding chapters the velocities of all points of a body under the action of forces al ways change continuously and gradually. In the present chapter we will study another mechanical phenomenon-wimpact. When bodies collide the velocities of all point of a body suffer a finite change in a very small time interval. The main subject here is to study collision phenomena, the fundamental theorems of the theory of impact, the loss in the kinetic energy of bodies during impact, the center of impact, etc 3
3 In the preceding chapters the velocities of all points of a body under the action of forces always change continuously and gradually . In the present chapter we will study another mechanical phenomenon——impact. When bodies collide the velocities of all point of a body suffer a finite change in a very small time interval .The main subject here is to study collision phenomena ,the fundamental theorems of the theory of impact ,the loss in the kinetic energy of bodies during impact , the center of impact ,etc
学 在前面讨论的问题中,物体在力的作用下,运动速度都 是连续地、逐渐地改变的。本章研究另一种力学现象—碰 撞,物体发生碰撞时,会在非常短促的时间内,运动速度突 然发生有限的改变。本章研究的主要内容有碰撞现象的特征, 用于碰撞过程的基本定理,碰撞过程中的动能损失,撞击中 心
4 在前面讨论的问题中，物体在力的作用下，运动速度都 是连续地、逐渐地改变的。本章研究另一种力学现象——碰 撞，物体发生碰撞时，会在非常短促的时间内，运动速度突 然发生有限的改变。本章研究的主要内容有碰撞现象的特征， 用于碰撞过程的基本定理，碰撞过程中的动能损失，撞击中 心
Chapter 19: Impact 819-1 Impact phenomenon and its fundamental characteristics. force of impact D819-2 Fundamental theorems of the theory of impact 8 19-3 Impact of a particle on a fixed plate. Coefficient of restitution D819-4 Direct Central impact of two bodies. Loss in kinetic energy. 回§19-5 The action of an impact force on a rigid body rotating about a fixed axis.The center of impact Small Summary
5 §19–1 Impact phenomenon and its fundamental characteristics. force of impact. §19-2 Fundamental theorems of the theory of impact §19–3 Impact of a particle on a fixed plate. Coefficient of restitution . §19–4 Direct Central impact of two bodies.Loss in kinetic energy. §19–5 The action of an impact force on a rigid body rotating about a fixed axis.The center of impact Small Summary Chapter 19 : Impact