一种改进的有限元子结构并行算法

重庆交通大学学报（自然科学版） ›› 1990, Vol. 9 ›› Issue (4): 73-78.

一种改进的有限元子结构并行算法

胡宁, 张汝清

重庆大学工程力学系

收稿日期:1990-05-15 出版日期:1990-08-20 发布日期:2016-11-08
作者简介:胡宁,男,25岁,博士生
基金资助:
西安交通大学国家结构强度与振动重点实验室国家基金项目

A New Parallel Algorithm of Finite Element Substructure Method

Hu Ning, Zhang Ruqing

Department of Engineering Mechanics, Chongqing University, Chongqing

Received:1990-05-15 Online:1990-08-20 Published:2016-11-08

摘要/Abstract

摘要： 本文提出了一种新的有限元子结构并行算法。该方法在分析多层建筑、塔等狭长结构中,利用一种新的结点编号,克服了原方法占用大量内存的缺点,即利用多个CPU同时进行一种新的静凝聚,再利用求得的子结构界面位移同时进行回代和求应力。该方法在西安交通大学ELXSI-6400并行计算机上程序实现,表明除能够大幅度节省时间以外,还能有效地节省内存,是一种有效的大型结构的分析方法。

关键词: 子结构算法, 并行算法

Abstract: A new parallel algorithm of finite element substrcture method has been presented in this paper.Using this effective method to analyze the long and narrow structures such as multi-storied buildings and towers, a new numbering method for points is used to overcome the difficulty of large memory space the original method needs. This means that many CPUs carry out a kind of new static condensations simultaneously, and the backward substitutions are concurrently made to get internal point displacements and stresses.The program of this method has been realized on ELXSI-6400 computer of Xi'an Jiaotong University.The computation results show that the computational time and memory space can be saved effectively.This method is an effective method for analyzing large-scale structures.

Key words: substructure method, parallel algorithm

胡宁, 张汝清. 一种改进的有限元子结构并行算法[J]. 重庆交通大学学报（自然科学版）, 1990, 9(4): 73-78.

Hu Ning, Zhang Ruqing. A New Parallel Algorithm of Finite Element Substructure Method[J]. Journal of Chongqing Jiaotong University(Natural Science), 1990, 9(4): 73-78.

[1]	胡宁. 有色线剖分的有限元SOR并行算法[J]. 重庆交通大学学报（自然科学版）, 1992, 11(2): 115-117.
[2]	胡宁. 一种有效的结构特征值问题并行算法[J]. 重庆交通大学学报（自然科学版）, 1991, 10(2): 63-68.