TY - GEN
T1 - A practice on parametric curve interpolator based on NURBS
AU - Guo, Yangqing
AU - Wang, Xin
AU - Shen, Hao
AU - Liao, Bing
PY - 2012
Y1 - 2012
N2 - In this paper, some improvements in parametric curve interpolation algorithm for non-uniform rational B-spline (NURBS) is proposed, the new algorithm can generate smooth and jerk-limited acceleration/deceleration feedrate profile. In order to avoid sudden change of velocity and achieve high machining quality around the corners with large curvature, velocity will be reduced before arriving the corners, where the chord errors are larger than limited value. More importantly, the computation of the length of NURBS curve in off-line process or real-time machining will be discarded, which is considered as an indispensable procedure in NURBS interpolation algorithm. Also some improvements are given in this paper to estimate the values of u. Simulation results demonstrate the effectiveness of the proposed interpolator for machine curved paths.
AB - In this paper, some improvements in parametric curve interpolation algorithm for non-uniform rational B-spline (NURBS) is proposed, the new algorithm can generate smooth and jerk-limited acceleration/deceleration feedrate profile. In order to avoid sudden change of velocity and achieve high machining quality around the corners with large curvature, velocity will be reduced before arriving the corners, where the chord errors are larger than limited value. More importantly, the computation of the length of NURBS curve in off-line process or real-time machining will be discarded, which is considered as an indispensable procedure in NURBS interpolation algorithm. Also some improvements are given in this paper to estimate the values of u. Simulation results demonstrate the effectiveness of the proposed interpolator for machine curved paths.
KW - Acceleration/Deceleration limited
KW - Adaptive interpolator
KW - Jerk limited
KW - NURBS
KW - Sharp corner detection
UR - https://www.scopus.com/pages/publications/84867593214
U2 - 10.1109/ICMA.2012.6284363
DO - 10.1109/ICMA.2012.6284363
M3 - 会议稿件
AN - SCOPUS:84867593214
SN - 9781467312776
T3 - 2012 IEEE International Conference on Mechatronics and Automation, ICMA 2012
SP - 1524
EP - 1529
BT - 2012 IEEE International Conference on Mechatronics and Automation, ICMA 2012
T2 - 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012
Y2 - 5 August 2012 through 8 August 2012
ER -