| 基于光线投射法的三维有限元网格自动划分 |
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| 引用本文： | 左旭,卫原平,陈军,阮雪榆.基于光线投射法的三维有限元网格自动划分[J].上海交通大学学报,1997(9). |
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| 作者姓名： | 左旭 卫原平 陈军 阮雪榆 |
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| 作者单位： | 上海交通大学塑性成形工程系 |
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| 摘 要： | 提出并实现了一种基于光线投射法的三维有限元网格自动划分方法，能适用于任意用ＣＳＧ树表示的三维实体．此方法先把三维实体离散成一定形状的体元，再由体元产生有限元四节点四面体网格．最后给出了用此方法划分的两个实例．
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| 关 键 词： | 网格划分 CSG树 光线投射法 有限元法 四面体网格 |
Ray Casting Based Method of Automatic 3D Finite Element Mesh Generation |
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| Zuo Xu,Wei Yuanping,Chen Jun,Ruan Xueyu.Ray Casting Based Method of Automatic 3D Finite Element Mesh Generation[J].Journal of Shanghai Jiaotong University,1997(9). |
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| Authors: | Zuo Xu Wei Yuanping Chen Jun Ruan Xueyu |
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| Abstract: | An automatic 3D finite element method mesh generation method by using modified ray casting is developed, which is very generic and can mesh any CSG models. The method starts by casting ray segments into solid to produce cells, and CSG models are discretized into cells, then, the cells are used to produce FEM elements. Two examples are given. |
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| Keywords: | mesh generation CSG ray casting finite element methods tetrahedral mesh |
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