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摘要：
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通过UG的二次开发工具UG/OPENAPI,开发出一个自动识别和读取UG模型的程序 ;对以往传统的Delaunay三角剖分算法做些改进 ,编写了该网格划分实现源程序 ,并对网格形状作优化和光滑化处理 ,实现对网格密度的自动控制 ;最后使用该网格划分程序对自动识别的任意复杂平面域UG模型进行网格划分。实现了在UG上做有限元网格划分的二次开发
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FEA grid generation in UG re-developing is realized in this paper for the first time. At first, according to the UG re-developing tool-UG/OPEN API,a procedure to identify and read the UG model has been developed. Then, some improvements are made to the traditional delaunay triangulation arithmetic,and a routine has been compiled, some optimization and smooth are made to the grid shape, the automatic control to the grid density is also realized. Finally, arbitary complicated plane domain automatic read from the UG is completely finished by the grid generation process.
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基金项目：
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江西省主要学科跨世纪学术和技术带头人培养计划项目 (2 0 0 1 6);;
华中科技大学塑性成形模拟及模具技术国家重点实验室开放基金资助项目 (2 0 0 3 2 );;
南昌市科技局资助项目
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作者简介：
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参考文献：
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1 董正卫,田立中,等.UG/OPENAPI编程基础,北京:清华大学出版社2002.
2 KHoLe.Finiteelementmeshgenerationmethods:AReviewandClassification.CAD ,1988,20(1):27～38
3 SibsonR .Locallyequiangulartriangulations.TheComputerJournal,1978,21(3):243～245
4 刘春太,杨晓东,申长雨,等.任意平面区域的变尺寸有限元网格划分.计算力学学报,2000,17(1):105～108
5 CavendishJC ,FielsDA ,FreyWH .Anapproachtoautomaticthree dimensionalfiniteelementmeshgeneration.InternationalJour nalforNumericalMethodsinEngineering,1985,(21):329～374
6 杜群贵,邓达华.基于Delaunay剖分有限元网格结点和单元一体化生成方法.计算机辅助设计与图形学学报,1997,9(1):60～64
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