| 基于Auto CAD AME的规则二次曲面壳的全四边形网格自动剖分 |
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| 引用本文： | 李华,程耿东.基于Auto CAD AME的规则二次曲面壳的全四边形网格自动剖分[J].大连理工大学学报,1997(4). |
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| 作者姓名： | 李华 程耿东 |
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| 作者单位： | 大连理工大学工程力学研究所 |
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| 摘 要： | 利用ＡｕｔｏＣＡＤ的高级造型扩展ＡＭＥ建立二次曲面及其相交模型；自动提取二次曲面的标准参数信息及曲面的交线信息，自动形成二次曲面壳块的等参面．该方法消除了网格剖分时曲面上极点处可能出现的奇异性，实现了二次曲面及其组合曲面上的全四边形网格剖分，并可按网格划分的密度要求实现网格的疏密过渡．
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| 关 键 词： | 二次曲面 有限元 网格／四边形单元 |
All quadrilateral mesh automatic generation for regular quadric surfaces based on Auto CAD AME |
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| Li Hua,Cheng Gengdong.All quadrilateral mesh automatic generation for regular quadric surfaces based on Auto CAD AME[J].Journal of Dalian University of Technology,1997(4). |
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| Authors: | Li Hua Cheng Gengdong |
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| Abstract: | Quadric surfaces or their intersection models are built by using Advanced Modeling Extension (AME) of Auto CAD. The information of lines of intersection of surfaces are drawn automatically and the isoparametric area is built automatically. This method dispels the singularity properly occurring at the poles of surfaces when meshing it, realizes the all quadrilateral meshing on quadric surfaces, and realizes the generation graded meshed. |
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| Keywords: | quadric surfaces finite elements meshes/quadrilateral elements |
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