列车与结构动态耦合分析的并行计算方法

摘要

High computing resource is needed to analyze the dynamic response of structures if train-tunnel dynamic interaction is considered and refined three dimensional structure models are used.In this paper,a train-structure interaction balanced algorithm for domain decomposition is designed and implemented according to the characteristics of train-structure dynamic coupling model.Employing three dimensional dynamic finite element models,two examples of the train-structure coupling system are analyzed using this partition algorithm.The results show that this method has better parallel performance than the Recursive Coordinate Bisection method.%在分析结构动态响应时考虑列车与结构的动态耦合作用,采用详细三维有限元模型会带来计算量太大的问题。本文采用并行计算方法,根据列车与结构动态耦合模型的计算特点,设计实现了列车结构耦合均衡的分区算法,并以两个工程应用为例,利用该方法对列车结构三维数值模型进行分区计算,结果表明该分区方法比递归坐标二分法有更好的并行效率。