复杂铸件Delaunay三角剖分方法及其在华铸CAE的应用  

Delaunay Triangulation Method of Complex Casting Profile and Its Application in InteCAST CAE

作　　者：李想 张琦 程酉维 殷亚军[1] 沈旭[1] 计效园[1] 周建新[1] Li Xiang;Zhang Qi;Cheng Youwei;Yin Yajun;Shen Xu;Ji Xiaoyuan;Zhou Jianxin(State Key Laboratory of Materials Processing and Die&Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology)

机构地区：[1]华中科技大学材料科学与工程学院,材料成形与模具技术国家重点实验室,武汉430074

出　　处：《特种铸造及有色合金》2022年第11期1351-1354,共4页Special Casting & Nonferrous Alloys

基　　金：广东省重点领域研发计划资助项目(2020B010186001);国家重点研发计划资助项目(2020YFB1710100)。

摘　　要：铸造工艺的模拟仿真需要对铸件几何模型进行网格剖分,复杂铸件剖面采用合适的Delaunay三角剖分能极大简化运算。采用了生长式的点插入三角剖分方法,并证明了其严格符合Delaunay三角剖分准则。新的三角剖分方法对复杂铸件剖面剖分后得到的三角网格近似等边三角形,该算法已成功应用于华铸CAE软件中。The simulation of casting process requires mesh generation of casting geometric model. The appropriate Delaunay triangulation of complex casting section can greatly simplify the operation. The quasi-growth point insertion triangulation method was adopted, proving that it strictly conforms to the Delaunay triangulation criterion. The triangular mesh obtained by the new triangulation method is similar to equilateral triangle. The algorithm has been successfully applied to the InteCAST CAE.

关 键 词：DELAUNAY 三角剖分 点插入法 华铸CAE 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] O242[自动化与计算机技术—计算机科学与技术]