• 论文 •    

平面区域有限元三角形网格划分研究及实现

王成恩,崔东亮,,严智远,徐轶伦,   

  1. 1.东北大学 辽宁省复杂装备多学科设计优化技术重点实验室,辽宁沈阳110004;2.东北大学 流程工业综合自动化教育部重点实验室,辽宁沈阳110004;3.东北大学 机械工程与自动化学院,辽宁沈阳110004;4.帝国理工学院 机械学院,英国伦敦SW72AZ
  • 出版日期:2011-02-25 发布日期:2011-02-25

Finite element triangle mesh generation in planar area

WANG Cheng-en, CUI Dong-liang,, YAN Zhi-yuan,, XU Yi-lun,,   

  1. 1.Liaoning Provincial Key Lab of Multidisciplinary Optimal Design for Complex Equipment, Northeastern University, Shenyang 110004, China; 2.Ministry of Education Key Lab of Integrated Automation for Process Industry, Northeastern University, Shenyang 110004, China;3.School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110004, China;4.Department of Mechanical Engineering, Imperial College, London SW7 2AZ,UK
  • Online:2011-02-25 Published:2011-02-25

摘要: 为了提高有限元分析方法在复杂装备设计中的效率和质量,在深入研究现有计算机辅助工程软件的基础上,建立了平面三角形网格划分系统。该系统能实现异构的Ansys平台和Patran平台网格数据的导入;提供多种途径多层次的网格尺寸控制方法;实现面向多区域问题的Delaunay算法、推进波前法和映射算法混合应用。通过在航空发动机轴对称零部件的热固耦合分析中的应用,证明了所提方法的有效性。

关键词: 复杂装备, 有限元网格划分, 推进波前法, Delaunay算法, 映射算法, 计算机辅助工程

Abstract: To improve efficiency and quality of finite element method in complicated assembly design, based on studies of several current Computer Aided Engineering (CAE) platforms, a triangle mesh generation system was established. In this system, isomeric mesh data from heterogeneous Ansys and Patran platform could be imported. Size control methods of mesh element were implemented from several aspects to generate size field information. Hybrid application of Advancing Front Technique (AFT) /Delauany/mapping algorithms for multi-area problem was realized. This system was applied in coupled thermo-solid analysis on axisymmetric components of aero-engine. Application results showed that the proposed method was effective.

Key words: complex equipment, finite element mesh generation, advancing front technique, Delaunay meshing, mapping algorithm, computer aided engineering

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