基于上述分析，考虑关键吸能结构件的成形历史是提高整车碰撞仿真精度的必要条件。
Based on above analysis, considering the forming history of key energy-absorbing structural parts is a necessary condition to improve the crash simulation accuracy.
然后以应用实体单元焊点模型的算例作为基础模型，研究了材料应变率效应对前纵梁碰撞仿真结果的影响。
The two types of spot weld models using solid element and beam element were applied in the FE modeling of a frontal longitudinal beam in sled crash test.
从冲压成型结果向碰撞仿真模型映射数据的误差依赖于碰撞模型网格尺寸，尺寸越大映射过程产生的误差也越大。
The error of data mapping from forming simulation results to crashworthiness simulation model depends on mesh size. The bigger the mesh size is, the bigger the error.
采用多体动力学软件MADYMO建立儿童乘员侧面碰撞仿真模型，并通过台车试验结果验证仿真模型的有效性。
A mathematical model of a child occupant in side collision is developed by using MADYMO software and the validity of the model is evaluated by comparing results between simulation and sled test.
仿真的结果表明，黑洞是和星系一同成长的，一些观测结果甚至显示一些含有活动星系核的星系有轻微的扭曲，这是近期发生碰撞的标志。
Simulations have found that black holes and galaxies grow together. Some observations even suggested that galaxies with active galactic nuclei were slightly distorted, a sign of a recent collision.
该算法在虚拟车削环境中的应用实例可以说明，该算法与传统的包围盒法相比，可更为准确地实现仿真中的碰撞检测。
The application of this algorithm in virtual turning environment demonstrates that this method can realize the collision detection in simulation more accurately than traditional bounding box method.
通过构造出质系动量系统碰撞模型和采用线性编址双缓冲图形绘制技术，实现了质系动量定理的实时仿真。
By constructing momentum theorem collision model and employing addressable, double-buffered graphic rendering technology and the real-time simulation of momentum theorem is implemented.
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.
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).
基于物理、特征行为仿真的三维空间对象碰撞检测及响应的研究正是在当前这种环境下产生。
The collision detection and response research with physical or behavioral-characteristic simulation in three-dimensional space arises just in the environment above.
数控加工仿真技术为验证数控程序的可靠性、防止干涉和碰撞的发生及预测加工过程提供了强有力的工具。
The simulation technology of nc process provides a powerful implement to judge the validity of nc codes, avoid the occurrence of interference and collision, and forecast the machining process.
有效的解决了排爆机器人训练仿真系统中遇到的各种碰撞检测问题。
The collision detection problems in Explosive Ordnance Disposal simulation training system were solved using these methods, and results demonstrate methods' effectiveness.
仿真与试验的结果表明，改进方案显著提高约束系统的性能，增强了其在碰撞过程中对乘员的保护效果。
The results of simulation and test show that the modification scheme markedly improve the performance of restraint system and its occupant protection effects during impact process is enhanced.
通过加工仿真，以检查数控程序的正确性、合理性，避免加工设备与叶片和夹具等的碰撞。
By computer simulation of machining we can check the correctness and rationality of NC programming, and avoid the collision between machine tool and blade or fixture.
通过两轮车在不同行驶速度下与前障碍物碰撞的仿真试验，说明了骑车人的运动特点以及与两轮车的运动关联性。
Simulation experiments that the two-wheeler with unequal speed collide with barrier show the movement characteristic of the cyclist and its relevance with the two-wheeler.
仿真研究结果表明，作业车能够越过高度不小于车轮半径的垂直障碍，越障时前轮所受碰撞力最大。
Simulation research results showed the front wheel had the biggest contact force during the surmounting process, the vehicle could surmount obstacle with height over the radius of wheel.
碰撞、碰撞检测及碰撞响应是虚拟战场环境中非常关键的技术，直接关系到最终仿真的效果。
Collision detection and collision response are the key technologies of building the virtual field environment, and also the factors affecting the result of simulation.
同时验证了本文汽车侧面碰撞虚拟试验数值模拟的方法，证明汽车侧面碰撞虚拟试验仿真模型的正确性。
At the same time virtual test validated the article automobile side impact virtual test simulation method, testified the accuracy of automobile side impact virtual test simulation model.
本文的工作对轿车的碰撞安全仿真研究具有借鉴意义，对车身结构设计、安全性能分析和交通事故处理具有参考价值。
The work has reference value for impact security simulation research, body structure design, safety performance analysis and traffic accident treatment.
仿真培训系统是虚拟现实技术在专业技术教学和训练中的重要应用，碰撞检测是许多仿真培训系统实现过程中不可缺少的一部分。
Simulation training system is an important application of virtual reality technology in fields of professional technique teaching and training, and collision detection is needed in many systems of it.
文章运用模块化思想设计了几何仿真和物理仿真集成的数控拉弯机仿真系统，提出了拉弯过程几何仿真、碰撞检测及物理仿真的实现方法。
This paper applies the modularization thinking in designing the NC stretch bending machine simulation system, that is an integration system of geometric and physical simulation.
仿真结果表明，改进方案能减小车门侵入量和明显降低假人损伤值，显著提高轿车的侧面碰撞安全性。
The simulation results show that the intrusion of the door and the passenger injury parameters are decreased significantly, and so, the side impact safety of the car can be improved.
理论分析和仿真结果表明，改进的协作重传机制可以有效降低重传碰撞概率，提高重传成功率，并改善系统吞吐量。
Analytical and simulation results indicate that improved scheme can alleviate collision problem caused by cooperation, increase probability of successful retransmissions and enhance system throughput.
用改进的碰撞检测和自碰撞检测算法对柔性织物及其所处三维空间中的物体进行处理，提高了柔性织物动态仿真的速度。
The improved collision and self-collision detection algorithm between objects are used to increase the velocity of the real-time simulation for flexible cloth.
应用美国ETA/VPG及LS-DYNA软件，按照欧洲侧面碰撞法规ECER95，对国产某轿车汽车侧面碰撞车身抗撞性能进行了计算机仿真分析。
According to European side crash regulation, ECER95, the side crash property of a native car is analyzed by USA ETA/VPG and LS-DYNA softwares.
将改进后的车身模型的仿真结果与改进前进行对比，结果表明达到了提高吸能特性和碰撞安全性的目的。
Finally, the simulation results before and after car modeling modification were compared, which indicated that modification can improve the absorption property and crash safety.
虚拟手术仿真是虚拟现实技术在现代医学领域的一个重要应用，快速精确的碰撞检测是虚拟手术仿真的基础。
Surgery simulation is an important application of virtual reality in the field of modern medical. Quick and exact collision detection is the base of surgery simulation.
通过与实车侧面碰撞实验结果进行对比，表明本文所用的仿真分析方法可行的，分析结果是有效的。
Compare the simulation results with the side crash test results, it shows that the method used in the simulation is feasible and the analysis results is effective.
对汽车碰撞中车身主要吸能构件之一的典型截面的薄壁梁进行了动态仿真。
This paper used a computer numerical simulation method to study the crashworthiness of thin-walled structure, which is a typical energy absorbing structure in collision.
对汽车碰撞中车身主要吸能构件之一的典型截面的薄壁梁进行了动态仿真。
This paper used a computer numerical simulation method to study the crashworthiness of thin-walled structure, which is a typical energy absorbing structure in collision.
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