چکیده مقاله
Methodologies for parametric interpolation for NURBS curves have been proposed in the past However, the errors caused by the approximate nature of the NURBS interpolator were often neglected This paper proposes an integrated look ahead algorithm which combines the NURBS interpolation with the exact Pythagorean hodograph PH interpolation to take into account geometric and interpolator approximation errors simultaneously The algorithm consists of four different modules: a sharp corner detection module, a PH construction module, a jerklimited module, and an interpolation module Simulations and experiments are performed to validate the proposed algorithm It is shown that the developed interpolator improves tracking and contour accuracies significantly compared to adaptive feedrate and curvature feedrate algorithms
کلیدواژهها
نویسندگان
Behnam Moetakef Imani
Associate Professor, Mechanical Engineering Department, Ferdowsi University of Mashhad
Amirmohammad Ghandehariun
M Sc Student, Mechanical Engineering Department, Ferdowsi University of Mashhad
شیوه ارجاع
Moetakef Imani, Behnam and Ghandehariun, Amirmohammad,1388,Development of a Pythagorean-hodograph interpolator for high speed CNC machining,10th Iranian Conference on Manufacturing Engineering (ICME 2010),Babol
ارائهشده در
مجموعه مقالات دهمین کنفرانس ملی مهندسی ساخت و تولید10 اسفند 1388 · بابل