摘要
分析了适用于大型稀疏矩阵求解的不完全乔列斯基分解的共轭梯度法ICCG ,对有限元代数方程ICCG指针的通用快速存取和寻址方法进行了研究 ,引入了新的数据结构 ,给出了基于剖分网格数据的通用快速存取和寻址方法 ,该方法可以快速有效地解决系数矩阵的寻址问题。采用等参元有限元法对罐式断路器断口间的三维电场进行了计算 ,在有限元方程大型稀疏矩阵的求解中采用了ICCG算法。
The incomplete Cholesky conjugate gradient method(ICCG) applied to solve large sparse matrix was analyzed in this paper. The general ICCG pointer memory addressing was studied and new data structure was adopted. The method of general ICCG pointer memory addressing based on the mesh generation data was given. It can solve the addressing problem of coefficient matrix effectively and rapidly. The three dimensional electric field between the tank type circuit breaker's contacts was computed by using isoparametric finite element method and the large sparse matrix was solved by using ICCG algorithm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2001年第2期21-24,共4页
Proceedings of the CSEE
基金
国家重点科技 (攻关 )计划资助项目! (97 3 12 0 2 0 4)
关键词
六氟硫断路器
罐式高压断路器
ICCG算法
三维电场
有限元
计算
ICCG(incomplete cholesky conjugate gradien) algorithm
interrupter
isoparametric finite element method
sparse matrix
