吉林大学学报(工学版) ›› 2001, Vol. ›› Issue (1): 19-24.

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Compatible Description of Tool Surfaces,FEM Mesh Generation and Contact Search for Simulating Complicated Massive Forming

KOU Shu-qing, YANG Shen-hua, HUANG Liang-ju, FU Pei-fu   

  1. Institute of Rolling Forging Technology, Jilin University, Nanling Campus, Changchun 130025, China
  • Received:2000-05-17 Online:2001-01-25

Abstract: The 3-D tool surface description together with the automatic 3-D meshing methods and the contact search is carried out for the FEM numerical simulation of complicated massive forming based on the cubic B-spline.The complex geometry for die cavity and forging surface is described;the spline technique for 3-D mesh generation as well as piecewise mesh generation is proposed and the region section search algorithm is done for the advantages of B-spline such as visualization,localization,generalization,flexibility and adaptation for graphic model.

Key words: finite element, B-spline, curved surface description, mesh generation, contact search

CLC Number: 

  • TG376
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