建立碰撞模型求解碰撞速度是交通事故再现的关键步骤。
A key step of accident reconstruction is to establish impact models for calculating the impact velocity of vehicles.
该研究对于完善碰撞危险度的内涵，建立碰撞危险度模型，及在建立自动避碰决策系统中的应用，具有重要的理论和实际应用价值。
The research has an important value to improve the connotation of SCR, establishment of the model and the establishment of automatic decision making system of collision avoidance.
论文叙述了国内外穿甲过程研究状况，建立了垂直侵彻和斜侵彻中弹靶的受力关系、碰撞基本方程；
The thesis state the domestic and abroad research status of penetration, establish the load relation of the vertical and fastigiated penetration and the impact basic equation.
沉浸式虚拟维修系统的关键技术包括模型建立、碰撞检测、虚拟人控制、程序控制实现和视景驱动控制。
The key technology of immersion virtual maintenance and training system includes model establishment, collision detection, virtual human control, program control realization, and view drive control.
分析了高速滚子轴承中保持架的复杂受力，建立了保持架的碰撞动力学模型和保持架的动力学运动方程。
The complex forces on cage of the high - speed cylindrical roller bearing has been analyzed, and the collision dynamics model and dynamics motion equation of the cage have been set up.
从颗粒碰撞理论出发，在合理假设的前提下建立物料颗粒在筛面上的运动模型。
On the basis of analyses over the collision theory, a motion mathematical model of the mixture on the vibration sieve is established with proper assumption.
以某型国产轿车保险杠为例，建立了保险杠低速碰撞有限元模型。
FEM model of the domestic car bumper system under low velocity impact is setup.
建立了列车与汽车在道口发生相撞事故时进行碰撞分析的简化计算模型；
The simple calculation model of making collision analysis between train and bus at level crossing is given.
针对高速公路广泛使用的波形梁半刚性护栏建立“护栏—汽车”碰撞体系耦合动力学有限元模型，研究护栏立柱对汽车绊阻效应的形成过程，提出解除护栏立柱对汽车绊阻效应的一种有效方法。
A coupling dynamics FEM model of guardrail and vehicle crashing system is built in this paper in accordance with the W-beam semi-rigid guardrail used widely in express way.
该文介绍了门式仿真培训系统中系统几何模型的建立过程以及利用固定方向包围盒(FDH)实现系统的碰撞检验。
This article discusses the construction of geometrical modeling in simulation training system for portal crane and the implementation of collision detection by the use of fixed direction hull (FDH).
该算法首先按照一定的规则建立起树形分层包围盒，在碰撞检测的时候，可利用上次的检测结果，起到了加速的作用。
First, the algorithm constitutes layered bounding box tree according to some rules, when making collision detection, the detection results of last time, will produce speedup effect.
采用动力接触有限元法分析强夯中夯锤对地基土的冲击碰撞过程，建立动接触力与速度之间的接触关系式。
Uses dynamic contact FEM to analyze impact and collision of hammer to foundation soil in the dynamic compaction, establishes the contact relation between dynamic contact force and speed.
推导了基于NASA标准解体模型的碎片分离速度概率密度函数，建立了计算航天器与单颗碎片碰撞概率的时间积分算法。
Space debris delta-velocity probability density function was deduced by NASA's standard breakup model, and time integral algorithm of collision probability between spacecraft and any debris was built.
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.
基于蒙特卡罗方法，建立了程序模拟离子与原子碰撞中的反冲离子飞行时间谱。
A program is established based on the Monte Carlo technique to simulate the time of flight spectrum in ion atom collisions.
文中根据刚体动力学及动量守恒定理，建立起颗粒–壁面碰撞三维数学模型，并采用此三维数学模型研究了壁面约束效应对细长颗粒流化特性的影响。
The three-dimensional particle-wall collision mathematical models were founded in the light of the kinetic of rigid and the momentum conservation law, and the effects of wall on the f.
采用二维九速的格子气模型模拟热声振荡，建立了完备的多体碰撞规则，提供了粘性和热边界的处理方法。
A complete multi-particle collision rule was established, and a method for dealing with viscous and thermal boundary was provided in the present model.
分析了飞机着舰拦阻时，拦阻钩初次接触道面碰撞后被反弹的动力学成因，建立了飞机拦阻钩碰撞道面的弹跳模型。
In this article, a study is made of the collision dynamics of the arresting hook bounce after initial touchdown when the aircraft is arrested, and a collision bounce model is built.
基于刺激行动的理论、船舶领域的概念及最晚施舵点，建立了空间碰撞危险度、时间碰撞危险度和碰撞危险度模型。
On the basis of stimulating action theory, the concepts of vessel's domain and the last opportunity to use helm, the models of SCR, TCR and collision risk (CR) are established.
分析了封包绳提前断裂状态下降落伞系统的运动特性，建立伞舱组合体在拉直阶段的动力学模型，计算了主伞的运动轨迹，分析了拉出的主伞与伞舱口的碰撞情况。
Under the conditions of early rupture of the reefing lines, motion characteristics of parachute system were analyzed, and mathematic model of parachute-capsule system in the deployment was built.
在建立前视声呐视域模型和人工势场模型的基础上，对AUV进行决策控制，通过梯度逼近法对目标进行搜索，快速规划出一条无碰撞的路径。
On the basis of building forward looking sonar view model and artificial potential model, decision control of AUV is made, objects are searched through grads approach, a collision free path is planed.
通过建立包围盒树，采用基于包络树的碰撞检测算法实现碰撞检测。
Collision detection was implemented through constructing bounding volume tree and adapting collision detection algorithm based on enveloping tree.
根据动量守恒定律，建立了摩托车与汽车正面碰撞及直角侧面碰撞的数学模型。
Based on the law of momentum conservation, the mathematics patterns of front collision and vertical side collision of motorcycles and motor vehicles are developed.
本文针对卡瓣膛外运动非对称性建立了统一的动力学模型，并分析了卡瓣与弹芯和卡瓣之间的碰撞问题。
The unified dynamics model was established and collision problem between the sabot and the long rod and the sabots was analyzed.
通过对床中物体表面与碰撞颗粒流之间的动量衡算，将颗粒流动量通量与颗粒的碰撞压力相关联，建立了流化床中颗粒碰撞压力的理论模型。
Relating the momentum flux of particle with the particle impact pressure on objects, a theoretical model of the particle impact pressure in fluidized bed is developed.
针对某轿车建立了基于多刚体理论的侧面碰撞乘员约束系统动态仿真模型，并依据试验结果进行了模型的有效性验证。
The dynamic simulation model based on the multi-rigid-body theory of the passenger restraint system for side impact of a car is created, and its validity is verified by tests.
为了改进小型客车正碰撞性能，建立了小型客车车架前纵梁碰撞的有限元模型。
In order to improve a mini-bus crashworthiness, firstly, a finite element method model was built.
为了改进小型客车正碰撞性能，建立了小型客车车架前纵梁碰撞的有限元模型。
In order to improve a mini-bus crashworthiness, firstly, a finite element method model was built.
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