常用曲面的变尺寸三角形网格划分  

THE GENERATION OF GRADATIONAL TRIANGLE MESHES FOR USUAL CURVED SURFACES

作　　者：杨晓东[1] 刘春太[1] 申长雨[1] 

机构地区：[1]郑州工业大学橡塑模具国家工程研究中心,郑州450002

出　　处：《计算机应用与软件》2000年第4期22-25,54,共5页Computer Applications and Software

基　　金：国家自然科学基金重点项目(编号 19632004)资助;国家攀登计划预选项目资助

摘　　要：针对常用的旋转面(包括圆锥面、圆柱面、圆台面、球面、圆环面等)、柱状平扫面的特点,在参数平面内采用统一的数据结构表示,将曲面网格划分问题归结为对参数平面的平面网格划分问题。在对参数平面进行网格划分时,根据网格尺寸要求生成适当的内部结点,然后用Delaunay三角化方法生成变尺寸光滑过渡的高质量三角形,满足有限元高精度分析计算的需要。According to the characteristics of the usual curved surfaces, such as surfaces of revolution, sweeping surface, a uniform data structure is proposed to describe them. So meshes over curved surfaces are transformed to ones over plane region by above technique. During the process of mesh generation, internal nodes are created according to the mesh size. Then gradational triangle meshes are generated by means of delaunay triangulation to be able to meet the demand on precise finite element analyses.

关 键 词：曲面 网格划分 参数平面 三角形网格 有限无法 

分 类 号：O242.21[理学—计算数学]