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首页> 外文会议>IEEE international conference on computer science and information technology;ICCSIT 2010 >The Research of Parallel Computing for Large-scale Finite Element Model of Wheel/Rail Rolling Contact
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The Research of Parallel Computing for Large-scale Finite Element Model of Wheel/Rail Rolling Contact

机译：轮轨滚动接触大规模有限元模型并行计算研究

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摘要

With the development of computer technology and calculation methods, the finite element method to analyze wheel/rail rolling contact became popular. For the increasing requirement of calculation scale and computing accuracy, the parallel computing method and parallel computing environment become an effective way to solve this problem. The parallel computing methods of contact problem is analyzed firstly. Then, the contact algorithm and parallel computing of ABAQL'S is introduced. And the parallel computing environment using MPI in ABAQL'S is put forward. On the basis of cluster, some different finite element model is solved by implicit and explicit solution. It is found that the mesh size of wheel/rail contact field is refined to 0.75mm in order to ensure accuracy for engineering. At last, the parallel computing for the contact problem of wheel/rail is discussed using the speedup and efficiency.
机译：随着计算机技术和计算方法的发展，用于分析车轮/轨道滚动接触的有限元方法开始流行。随着对计算规模和计算精度的日益增长的需求，并行计算方法和并行计算环境成为解决这一问题的有效途径。首先分析了接触问题的并行计算方法。然后，介绍了ABAQL'S的联系算法和并行计算。并提出了在ABAQL中使用MPI的并行计算环境。在聚类的基础上，通过隐式和显式解决方案解决了一些不同的有限元模型。发现轮/轨接触场的网格尺寸被精修到0.75mm，以确保工程精度。最后，利用提速和效率讨论了轮轨接触问题的并行计算。

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