Parallel finite element analytical method based on coarse-fine mesh formulation

FU Chao-jiang; ZHANG Wu

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Parallel finite element analytical method based on coarse-fine mesh formulation

更新时间：2026-06-25

- Parallel finite element analytical method based on coarse-fine mesh formulation
- Vol. 27, Issue 5, (2006)
- 作者机构：
  
  1. 南昌大学建筑工程学院,南昌,330029
  2. 上海大学计算机工程与科学学院,上海,200072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：05 November 2013，
  
  Published：2006
- 稿件说明：
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FU Chao-jiang, ZHANG Wu. Parallel finite element analytical method based on coarse-fine mesh formulation[J]. 2006, 27(5).
DOI：

FU Chao-jiang, ZHANG Wu. Parallel finite element analytical method based on coarse-fine mesh formulation[J]. 2006, 27(5). DOI：

摘要

并行计算己成为求解大规模岩土工程问题的一种强大趋势。探讨了粗细网格与预处理共轭梯度法结合的并行有限元算法。从多重网格刚度矩阵推得有效的预处理子。该算法在工作站机群上实现。用地基处理时土体强夯的数值模拟分析进行了数值测试，对其并行性能进行了详细分析。计算结果表明：该算法具有良好的并行加速比和效率，是一种有效的并行算法。

Abstract

Parallel computing is becoming the strong trend of solving large scale geotechnical problems. A parallel preconditioned conjugate gradient iterative algorithm for finite element problems with coarse-mesh/fine-mesh formulation is discussed. An efficient preconditioner is derived from the multigrid stiffness matrix. The algorithm is implemented on a workstation cluster. Numerical example of solution of soils after the dynamic compaction is presented and the parallel performance is analyzed. The results show high speedup and efficiency. The algorithm is efficient for parallel computing.

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Related Author

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SHENG Qian

ZHANG Yong-hui

JIA Shan-po

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Related Institution

State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences

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Research 1Center of Geotechnical and Structural Engineering, Shandong University

Department of Geotechnical Engineering, Southwest Jiaotong University

School of Resources and Safety Engineering, Central South University

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