摘要
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。
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.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2012年第3期352-356,362,共6页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金(11072150
50875166)资助项目
关键词
动态分析
三维模型
并行计算
区域分解方法
dynamic analysis
three dimensional model
parallel computing
domain decomposition method
