한국공작기계학회:학술대회논문집 (Proceedings of the Korean Society of Machine Tool Engineers Conference)

한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

실시간 NURBS 보간 알고리즘에 관한 연구

A study on the real-time NURBS interpolation algorithm

  • 최인휴 (한국과학기술원 기계공학과 대학원) ;
  • 양민양 (한국과학기술원 기계공학과)
  • 발행 : 2002.04.01
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초록

This paper presents an algorithm for general 2D and 3D NURBS interpolation and deals with command generation for 3 axes milling machining, including the feedrate control in order to meet two limitations, a geometrical accuracy and a dynamic restriction. Both of the maximum chordal error and the maximum acceleration specified by machine parameter lead to limit the allowable feedrate on the curvature of NURBS tool path. So, motion commands at every sampling time are continuously generated by those two limitations and programmed feedrate. Simulation results of interpolating several NURBS curves show that proposed NURBS algorithm is favorable in the machining free-form curve

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