... 二轮压路机||tandem roller 二维碰撞||two dimension collision 发车正点率||rate of on-time departure ...
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二维汽车碰撞 two-dimensional vehicle collision
At first, the vehicle kinetic model and impact model are set up. This paper puts forward five different vehicle impact models according to the collinear collision and two-dimension collision and the restitution coefficient is used in these models.
本文就以下两个方面进行了研究：首先建立了汽车碰撞的力学模型，根据交通事故中最普遍的一维碰撞和二维碰撞的不同情况，采用恢复系数和滑动摩擦系数等概念，分别建立了五种力学模型。
参考来源 - 道路交通事故模拟再现的研究及应用·2,447,543篇论文数据，部分数据来源于NoteExpress
对于二维碰撞，可以根据车辆的碰撞位置和停止位置，反推计算出车辆碰撞后的分离速度和碰撞前的接触速度。
For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the impact locality and stop locality of collision vehicle.
采用粒子网格单元与蒙特卡洛碰撞相结合的方法，建立霍尔效应推力器羽流的二维轴对称模型。
A two-dimensional axisymmetric hybrid particle-in-cell and Monte Carlo Collision model is developed to study the Hall effect thruster plume.
采用二维全粒子模拟方法研究了无碰撞磁场重联。
The collisionless magnetic reconnection is studied using two dimensional full particle simulation.
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