一种用于求解人体胸腔三维恒定电场有限元方程组的算法  

An Algorithm to Solve the Finite Element Eguations for Thoracic 3-Dimentional Steady Electric Field Analysis

作　　者：王建琪[1] 朱新亚[1] 王海滨[1] 董秀珍[1] 漆家学[1] 

机构地区：[1]第四军医大学生物医学工程系,西安710032

出　　处：《北京生物医学工程》2000年第1期28-32,共5页Beijing Biomedical Engineering

摘　　要：本文介绍了一种用于求解人体胸腔三维恒定电场有限元方程组的算法。该算法采用直接法中克劳特分解法与分块技术相结合来求解已合成的总体有限元方程组， 从而解决了计算机因内存有限而使程序经常死机的问题。该算法已成功地应用于心阻抗血流图三维有限元建模的理论研究中。In this paper is introduced an algorithm to solve the finite element equations for thoracic 3\|dimentional steady electric field analysis. The algorithm can give the solution of resultant finite element equations by means of the combination of direct Crout decomposition method and blocking technology. Thereby, we have solved the problem that the computer stops running the program because of not enough memory. In has been applied to theoretical study of modeling of 3\|dimentional finite element of impedance cardiograph successfully.

关 键 词：有限元 算法 心阻抗血流图 胸腔 

分 类 号：R318.01[医药卫生—生物医学工程] R311[医药卫生—基础医学]