吉林大学学报（理学版）Issue(5)：971-974,4.DOI:10.13413/j.cnki.jdxblxb.2014.05.20
结构静力重分析预处理共轭梯度法的一种有效改进
Efficient Improvement of Preconditioned Conj ugate Gradient Method for Structural Static Reanalysis
摘要
Abstract
This paper deals with the implementation of preconditioned conj ugate gradient method (PCG)for structural static reanalysis.The implementation of PCG is revised by exploring sparsity of incremental stiffness matrices so that the computational cost and time can be reduced.Numerical example is given to show the effectiveness of the method.关键词
预处理共轭梯度法/静力重分析/稀疏性/Cholesky分解Key words
PCG method/static reanalysis/sparsity/Cholesky factorization分类
数理科学引用本文复制引用
刘海峰,李正光..结构静力重分析预处理共轭梯度法的一种有效改进[J].吉林大学学报（理学版）,2014,(5):971-974,4.基金项目
国家自然科学基金(批准号:51005096) （批准号:51005096）
