第五章对三维有限元网格的生成方法进行了介绍，并指出三维有限元网格剖分的发展趋势和方向。
The fifth chapter introduces some three-dimensional FEM mesh generation methods, and points out the trend of them.
在生成三维随机球形骨料模型的基础上，研究了形成随机凸多面体骨料模型的方法，并利用FORTRAN语言编制凸多面体骨料生成程序和细观有限元网格剖分程序。
FORTRAN program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the mesoscale structured finite element grids of concrete is developed.
地下洞室有限元计算的网格剖分是影响整个计算工作进度和质量的重要因素。
The mesh dissection of finite element calculation of underground cavern is an important factor of affecting the whole calculation progress and quality.
三角剖分是有限元网格划分的重要工具之一。本文将这一方法应用于装配图的消隐之中，并介绍其原理及实现步骤。
Triangulation is an important way of finite element mesh generation. In this paper, this way is introduced into hiding assembly drawing, the relating theory and steps are also discussed.
介绍了利用CAD、网格自动剖分和人工智能技术相结合进行航空薄壁结构有限元建模的问题求解框架。
Based on CAD, automatic mesh generation and AI reasoning techniques, the problem solving framework for finite element modeling (FEM) of aeronautical thin wall structures is introduced.
在有限元网格自动剖分方面，本文提出了对角点网格自动生成算法。
In the aspect of FEM mesh automatic generation, this paper presents counter corner pix FEM mesh automatic generation method.
在混凝土重力坝有限元应力分析中，坝踵和坝趾的应力随网格剖分尺寸的减小而急剧增大。
Based on the dam heel and toes stress calculated by FEM changes very much as the mesh size reduces.
针对有限元前置处理中二维复杂域四边形网格自动剖分问题，对四叉树网格剖分算法进行了研究。
The arithmetic of quadtree mesh generation was studied in order to solve the problem of the finite element automatic quadrilateral mesh generation for a two dimensional complex region.
这种方法不同于有限元计算的网格剖分，具有网格单元与曲面曲率无关和剖分速度快等特点。
It possesses the characteristic that the shapes of mesh cells have nothing to do with the curvature of surfaces and can realize triangulation of fair meshes with specified edge lengths at high speed.
本文讨论了有关有限元法在大地电磁测深二维正演中的应用问题，论述了现有文献中采用的网格剖分方案。
The application of finite element method to 2-d forward solution of magnetotelluric sounding is discussed, and the mesh dissection scheme adopted in present literatures is reviewed in this paper.
该法较好地解决了由计算对象边界复杂、材料分区多变带来的有限元三维网格自动剖分的困难。
The method overcomes the difficulty induced by complicated boundary and changeable materials of calculated objectives in auto-generation of the 3D FEM meshes.
本文针对带有间断系数的三维椭圆问题，讨论任意四面体剖分下的二次拉格朗日有限元方程的代数多重网格法。
In this paper, we consider a quadratic Lagrangian finite element equation arising from discretizations of 3d elliptic problem with jump coefficients under any tetrahedral partition.
本文针对带有间断系数的三维椭圆问题，讨论任意四面体剖分下的二次拉格朗日有限元方程的代数多重网格法。
In this paper, we consider a quadratic Lagrangian finite element equation arising from discretizations of 3d elliptic problem with jump coefficients under any tetrahedral partition.
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