Algorithm for mixed meshing multiple trimmed parametric surfaces for finite element analysis

被引：0

作者：

Ouyang, X. ^{[1
]}

Shi, F.Z. ^{[1
]}

机构：

[1] Sch. of Mech. Eng. and Automation, Beijing Univ. of Aeron. and Astron., Beijing 100083, China

来源：

Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2001年 / 27卷 / 02期

关键词：

Algorithms - Boundary conditions - Computer aided design - Computer aided manufacturing - Dies - Finite element method - Fits and tolerances - Mathematical models - Trimming;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

According to the character of die shape, based on the mathematical model of multiple trimmed parametric surfaces, which is created by CAD/CAM system, an algorithm for generate mixed mesh of triangles and quadrilaterals for finite element analysis is presented. The trimmed parametric surfaces are discreted into polygons, which are controlled by the parameters of maximum edge length, minimum edge length, distance tolerance and angle tolerance, etc. The adjacent relation between surfaces is found and merged by surface-curves, consequently, a model represented by boundary is created, the polygons are updated by surface-curves, and mixed mesh is generated by these polygons. The resultant mesh is conformal, without crack and overlap between the adjacent surface.

引用

页码：209 / 212