A parametric method to design addendum surface for automotive panel
  Revised:July 06, 2005
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DOI:10.7511/jslx20074103
KeyWord:automotive panel,die face engineering,parametric design,addendum,bi-direction NURBS skinning
LIU Yu-lin  GONG Ke-jia  GUO Wei  HU Ping
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Abstract:
      The addendum surface design has great effects on the forming quality to automotive panel.The convenience of addendum modeling and modification is an important access to improve design efficiency.The paper presents the method and process of building section curve style database which can be modified by characteristic parameter and generating the addendum surface by bi-direction NURBS skinning.Applying the method presented in this paper,the addendum surface can be generated rapidly according to the shape of section curves,and furthermore,can be modified conveniently by alternate ways.And the relevant parametric design modules are independently developed in Visual C .The feasibility of the technique is proved by the numerical simulation which creates addendum surface of some practical parts successfully.