| 三维有限元位移场插值问题的研究和应用 |
| |
| 引用本文： | 王德玲,李春光,葛修润.三维有限元位移场插值问题的研究和应用[J].岩土力学,2004,25(2):216-219. |
| |
| 作者姓名： | 王德玲 李春光 葛修润 |
| |
| 作者单位： | 中国科学院武汉岩土力学研究所 岩土力学重点实验室，湖北 武汉 430071 |
| |
| 摘 要： | 对三维有限元位移场的插值问题进行了研究，提出基于Delaunay三角剖分的二次细分网格法。该法首先建立2个模型——整体模型和局部二次细分模型，对整体模型进行有限元计算和反分析得到初始地应力场和位移场；然后，基于Delaunay三角剖分，对整体模型的三维有限元位移场进行插值，插值结果作为局部模型的边界位移，局部二次细分模型再在此基础上进行有限元分析。最后，将该方法应用于工程实践，证明能提高计算效率，是切实可行的。
|
| 关 键 词： | 二次细分网格 Delaunay三角剖分 插值 |
| 文章编号： | 1000-7598-(2004)02-0216-04 |
| 收稿时间： | 2002-12-16 |
| 修稿时间： | 2002年12月16 |
Research and application of interpolation of 3D finite element displacement field |
| |
| WANG De-ling,LI Chun-guang,GE Xiu-run.Research and application of interpolation of 3D finite element displacement field[J].Rock and Soil Mechanics,2004,25(2):216-219. |
| |
| Authors: | WANG De-ling LI Chun-guang GE Xiu-run |
| |
| Institution: | Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| |
| Abstract: | The interpolation of 3D finite element displacement field is researched. The method of secondly subdivision meshes is proposed; it is based on Delaunay triangulation. According to this method, unitary model and partial remeshed model are firstly set up, the initial stress and displacement fields of unitary model are obtained by using FEM and back analysis. Consequently based on Delaunay triangulation, the method interpolates 3D finite element displacement field of unitary model. Then the interpolating results act as boundary displacement of partial model, based on which partial remeshed model performs finite element analyses. At last, this method is used in practical project; that proves that it can improve computational efficiency and it is feasible. |
| |
| Keywords: | secondly subdivistion mesh Delaunay triangulation interpolation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
