向量式有限元桁架结构并行程序节点分配技术

Node Distributing Technology for Parallel Computing of Spatial Truss Structure Using Vector Form Intrinsic Finite Element

摘要:

结合向量式有限元(VFIFE)的计算规则以及桁架结构的特点，提出了一种并行程序节点分配机制.通过对桁架结构模型数据的分析，定义模型数据的分解规则，动态实现对模型数据的分解.依据分解的结果来动态划分并行计算的数据集，并且基于特定的并行计算框架完成并行计算.实例验证表明，该节点分配机制是有效的，并且极大地提高了计算效率.

关键词:向量式有限元(VFIFE); 桁架结构; 并行算法

Abstract:

After studying the computation rules in vector form intrinsic finite element(VFIFE) and the feature of spatial truss structure, a node distributing mechanism for parallel computing was proposed. According to the defined rules of decomposing, the model data of spatial truss structure were dynamically decomposed. Based on the results of decomposition, the data sets of nodes were dynamically decomposed, and the parallel computing was accomplished in the specific frame. The numerical experiments indicate that, the node distributing mechanism greatly improves the speed of spatial truss structure analysis, in contrast with those based on serial computing or classical finite element method.

Key words:vector form intrinsic finite element(VFIFE); spatial truss structure; parallel computing