复杂铸件的三维实体造型及自动剖分

3-D Method of Computer Constructive Solid Geometry and Automatic Enmeshment for Complex Castings

介绍了三维实体造型和变步长网格自动剖分的实用计算机造型方法。这种方法采用了２１类基本形体的数学描述，以此组合形成复杂的铸件形体，比起手工剖分或２—１／２维剖分方法显著提高了描述形体的准确性和工作效率。

A method of 3-D computer constructive solid geometry and automatic enn.eshmentwith the variable steps was presented. Based on mathematic description of 21 kinds ofthe basic units,the complex geometry of castings has been constructed, this sutomaticenmeshment method is much more efficient and accurate over the traditional manual or2-1/2 dimensional enmeshment method.