Fast and precision NURBS interpolator for CNC systems

Title
Fast and precision NURBS interpolator for CNC systems
Author(s)
고태조백대균[백대균]양승한[양승한]
Keywords
PARAMETRIC INTERPOLATOR; CURVE INTERPOLATORS; ACCELERATION; FEEDRATE; DYNAMICS; SCHEME; ERROR; JERK
Issue Date
201206
Publisher
KOREAN SOC PRECISION ENG
Citation
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, v.13, no.6, pp.955 - 961
Abstract
This paper presents a performance evaluation of a NURBS interpolator that uses not Taylor's expansion method but the recursive characteristics of NURBS. Taylor's expansion has mostly been used for NURBS interpolation. However, it is very complicated and gives an indispensable truncation error. A fast and precision NURBS interpolator replacing Taylor's expansion is presented for CNC systems in robots and CNC machine tools. The presented interpolation algorithm uses the recursive equation of the NURBS formula rather than Taylor's expansion. A simulation study is conducted to demonstrate the advantages of this proposed interpolator compared with those using Taylor's equation. The feedrate error and calculation time are simulated in the performance evaluation. The recursive method of NURBS interpolation is faster and more accurate than Taylor's expansion.
URI
http://hdl.handle.net/YU.REPOSITORY/28133http://dx.doi.org/10.1007/s12541-012-0124-1
ISSN
2234-7593
Appears in Collections:
공과대학 > 기계공학부 > Articles
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