Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (2): 27-32.

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Boundary Pre-Adjustment Method for Finite-Element Mesh Generation of Closed Surface

Du Qun-gui  Liu Sheng  Huang Xiao-dong   

  1. School of Automotive Engineering , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2006-04-11 Online:2007-02-25 Published:2007-02-25
  • Contact: 杜群贵(1965-)，男，博士，教授，主要从事CAD/CAE 、机械电子工程、工程车辆等研究。 E-mail:ctqgdu@scut. edu.cn
  • About author:杜群贵(1965-)，男，博士，教授，主要从事CAD/CAE 、机械电子工程、工程车辆等研究。
  • Supported by:

    广东省科技计划攻关项目(2002A104040101) ;华南理工大学自然科学青年基金资助项目( B21-E505980)

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Abstract:

In order to guarantee an integrated boundary relationship between a closed surface and its parameter field , and to ensure the reliability of the advancing front technique (AFT) in mesh generation , a boundary pre-ad-justment method of closed surface is developed , in which new edges related to the boundaries of the parameter field and the virtual boundaries inside the parameter field are formed and defined as the additional boundaries of the closed surface. As a result , the closed surface is divided into a series of slices with open surface. Therefore , me-shes can be simultaneously generated via the AFT on each slice with open surface. The proposed method for bound-ary pre-adjustment makes the AFT suitable to the mesh generation of various closed surfaces.

Key words: finite element method, mesh generation, advancing front technique, closed surface, boundary adjustment