| Delaunay三角剖分在构造应力场数值模拟中的应用 |
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| 引用本文： | 胡倩.Delaunay三角剖分在构造应力场数值模拟中的应用[J].数字社区&智能家居,2009(20). |
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| 作者姓名： | 胡倩 |
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| 作者单位： | 中国地质大学(北京)信息工程学院; |
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| 摘 要： | 运用有限元分析进行数值模拟的方法来研究构造应力场,首先需要对所有地质模型进行有限元三角型单元剖分。传统的手工剖分效率和精度都不高,利用计算机自动剖分可以达到较高的精度和效率,从而为高效地进行构造应力场数值模拟打下基础。本文提出了一种先无约束剖分再加入约束边的Delaunay三角网剖分算法,先对整个区域进行均匀的三角剖分,再以地质体界线为约束条件修改剖分,继而生成按地质体为剖分对象的三角网,并对其编程实现,实验证明该算法应用效果良好,并且避免了由于容差过小而导致的剖分三角形过于狭长的问题,程序实现简单,具有较强的鲁棒性。
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| 关 键 词： | 数值模拟 Delaunay三角剖分 构造应力场 约束边 |
The Application of Delaunay Triangulation to Numerical Simulation for Tectonic Stress Field |
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| HU Qian.The Application of Delaunay Triangulation to Numerical Simulation for Tectonic Stress Field[J].Digital Community & Smart Home,2009(20). |
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| Authors: | HU Qian |
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| Affiliation: | HU Qian(College of Information Science , Engineering,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | Appling the finite element analysis to numerical simulation for the tectonic stress field,the first thing is to perform triangulation.The efficiency and accuracy of the conventional manual method is low,but it is high when using computer to realize automatic partition,so the application of computer makes the process of numerical simulation for tectonic stress field very efficiently.The paper provides a Delaunay Triangulation algorithm that can be used in tectonic stress field.First,we perform the triangulat... |
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| Keywords: | numerical simulation delaunay triangulation tectonic stress field constraint segments |
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