Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (2): 88-91.

• Mechanical Engineering • Previous Articles     Next Articles

Direct Interpolation Algorithm for Projective Curve on Param etric Surface

Meng Shu-yun  Zhao Dong-biao   

  1. College of Mechanical and Electrical Engineering,Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China
  • Received:2005-03-25 Online:2006-02-25 Published:2006-02-25
  • Contact: 孟书云(1978-)，女，博士生，主要从事机电系统控制及自动化的研究 E-mail:mengshuyun22331@sohu.eom
  • About author:孟书云(1978-)，女，博士生，主要从事机电系统控制及自动化的研究
  • Supported by:

    国家自然科学基金资助项目(50275077)；江苏省自然科学基金资助项目(BK2003005)；中国高等学校博士点基金资助项目(200287004)

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Abstract:

The machining of sculptured surface by the traditional method may cause many problems because the exi-sting CNC(Computerized Numerical Control)system,which possesses weak control capability,depends too much on automatic programming.In order to solve these problems,a direct interpolation algorithm for the projective curve on parametric surface is proposed in this paper.It can directly carry out the interp olation of tool paths in local surface with improved control capability of CNC system.Moreover,an example of local machining is presented to veri-fy the proposed algorithm .Simulated results show that the proposed algorithm is simple,feasible and effective,and that it can be applied to the machining of the whole surface.

Key words: parametric surface, local machining, projective curve, interpolation