摘要
本文介绍了一种采用等参数８节点任意六面体单元来求解人体胸腔三维恒定电场分布的有限元程序设计方法，程序的编制基于ＢｏｒｌａｎｄＣ＋＋ＦｏｒＤＯＳ的编程环境，在对最终形成的有限元代数方程的求解过程中采用了分块处理总系数矩阵及“取大数”处理边界条件的方法。该程序设计方法为进一步深入研究人体胸腔阻抗血流图波形的成因打下了基础。
In this paper we introduce a finite element program design method for solving 3 D thoracic electrical field distribution,based on Borland C++ for DOS and using isoparametric element of arbitrary hexahedron.In the process of solving final finite element equation,this paper uses the method of blocking and ‘getting big number’ to deal with total coefficient matrix and boundary conditions.The finite element program design method has laid a solid foundation for in depth reseach of physical thoracic impedence rheogram wave form.
出处
《北京生物医学工程》
1998年第1期9-13,5,共6页
Beijing Biomedical Engineering
关键词
胸腔
电场
有限元
阻抗血流图
Thorax
Electrical field
Finite element
Impedence rheogram
