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1)  Separation-impact-contact model
分离-碰撞-接触模型
2)  impact contact
碰撞接触
1.
A nonlinear dynamics model for describing the impact contact state between rotating rod and tube was presented.
针对细长抽油杆柱旋转运动时沿井深和井眼圆周方向与油管内壁产生碰撞接触的问题,建立了抽油杆柱非线性动力学模型。
2.
The dynamics model of rotating rod string is presented, with the consideration of the impact contact between rotating rod string and well bore which happened in any direction of well depth and well bore circumference.
井筒内细长抽油杆柱是石油工程中特有结构,考虑旋转抽油杆柱可能在任意井深和井眼圆周方向上与井筒产生的碰撞接触,建立了旋转抽油杆柱动力学模型,并采用动力间隙元和空间梁单元、Newmark法进行仿真。
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3)  contact impact
接触碰撞
1.
Through the contact impact arithmetic theory of multi-body dynamics and ADAMS,the dynamic simulation of the gear mesh is specified.
基于多体动力学的接触碰撞算法,利用ADAMS软件实现了齿轮啮合的动力学仿真。
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4)  collision contact
碰撞接触
1.
The theory of collision contact was studied,and the parallel indexing cam mechanism was simulated.
对碰撞接触理论进行了研究,并对平行分度凸轮机构进行了动力学仿真,得到了很有实际应用价值的结论。
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5)  contact-impact
接触-碰撞
1.
The flexible robot system contact-impact dynamics is essentially a time varying, nonlinear dynamic process with variable topology, the key to solve the impact dynamics in the flexible robot system is to correctly establish the contact-impact model.
柔性机器人接触碰撞动力学本质上是一种非定常、变拓扑、非线性的动力学过程,建立合理的接触-碰撞模型是解决柔性机器人碰撞动力学问题的关键。
6)  contact/impact
接触/碰撞
1.
This paper is concerned with the investigation on contact/impact occuring during the firing of a vehicle-mounted howitzer and its system dynamics by nonlinear finite element method (FEM), which can provide theoretical foundation and design decision for overall design and structural design of such weapon systems.
本文应用非线性有限元理论研究车载榴弹炮发射过程中的接触/碰撞问题以及全炮非线性动力学问题,为该类武器的总体设计和结构设计提供理论依据和决策参考。
补充资料：接触络合物模型
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性质： 生成长寿命的活化络合物(又称复合物)的反应模型。它与具有势垒的直接反应相比，势能面上的势阱会“陷住”结合的反应物，即发生黏着碰撞，反应时间长得足以使初始碰撞失掉某些细致的性质，表现在反应性散射的角分布为各向同性产物能量的分配也不如直接反应那样专一。此模型又称复合反应机理(compound reaction mechanism)。

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