摘要
选择AutoCAD软件作为三维有限元前处理平台,以图形交换文件DXF为基础,采用Fortran或VisualC++高级语言来读取、分析、处理数据文件,从而快速形成包括有限元网格、结点数、结点坐标、单元数、单元编码的三维有限元网格图,得到有限元分析的数据文件。通过图形的三维动态显示和观察,对有限元网格图形进行局部修改和调整,能够既快速又准确地实现复杂地下工程洞室群三维有限元网格离散,从而加快有限元分析的进程。
AutoCAD is selected for the 3D FEM pre-treatment, Fortran or Visual C++ is adopted in data input and analysis, and the figures are analyzed and treated based on picture-exchanged DXF document. The 3D FEM relevance meshes can then be formed with all factors provided. The meshes are modified and adjusted after 3D dynamic display and observation of the meshes. This method can quickly and accurately realize the 3D FEM mesh subdivision.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第z2期4988-4992,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
数值分析
有限元
网格图
CAD
地下洞室群
numerical analysis, finite element, mesh diagram, CAD, underground cavity group
