摘要
提出了基于四叉树和三角化方法的一种简单、快速且有效的平面结构区域内网格自动生成方法。该方法既可以生成全三角形或全四边形单元,又可以生成二者共存的混合型单元网格,还可以根据实际需要,特别是有限元网格的要求,产生尽可能多的正方形与矩形单元。探讨了利用展转法、平切法对空间结构区域进行网格剖分的问题。所给方法可以推广到结构部件模拟设计、力学分析等方面的结构化网格自动生成,具有较大的应用价值。
A simple, speedy but efficient algorithm for automatic mesh generation over arbitrary polygonal domain is proposed in this paper. The algorithm can not only generate all triangular meshes and all quadrilateral meshes but also generate mixed mode meshes consisting of both quadrilateral and triangular elements. Besides, according to actual need, especially the demand of finite element meshes, it can generate rectangles or squares as many as possible. The methods of extruding, revolving and plane slicing to generate meshes for spatial solid structure are also investigated. The methods given can be applied to the automatic structural mesh generation in structural parts simulation design, mechanical analysis etc. So the methods discussed in the paper are very convenient to use. They will have good application value.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
1999年第6期27-30,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金
