计算物理 ›› 1994, Vol. 11 ›› Issue (4): 393-401.

• 论文 • 上一篇    下一篇

EBE技术在结构分析中的应用(Ⅲ)-EBE-PCG法

邓绍忠, 周树荃   

  1. 南京航空航天大学数理力学系, 南京 210016
  • 收稿日期:1992-12-06 修回日期:1994-03-10 出版日期:1994-12-25 发布日期:1994-12-25
  • 基金资助:
    国防科技预研任务课题

APPLICATION OF EBE STRATEGY IN STRUCTURAL ANALYSIS (Ⅲ)-BE-PCG METHOD

Deng Shaozhong, Zhou Shuquan   

  1. Dept. Math., Phy. and Mech., Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:1992-12-06 Revised:1994-03-10 Online:1994-12-25 Published:1994-12-25

摘要: 在建立单元向量、伪单元向量等概念的基础上,提出了当不形成总刚度矩阵时,预处理共轭梯度法(PCG)的一种高度并行的EBE计算方法,其基本思想是把PCG法各步的计算都单元化。文[3]中的数值试验结果表明了它的有效性。

关键词: 有限元法, 并行算法, 结构分析

Abstract: Important concepts such as element vector, pseudo-element valor are discussed and an EBE cpmputational method of preconditioned conjugate gradient method (PCG) is presented, namely EBE-PCG method, which does not require the formation of global stiffness matrix and is highly parallizable. Numerical example shows it is very efficient.

Key words: finite element method, parallel algorithm, structrual analysis

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