NDLI: Development of real-time look-ahead algorithm for NURBS interpolator with consideration of servo dynamics

Content Provider	IEEE Xplore Digital Library
Author	Ming-Tzong Lin Meng-Shiun Tsai Hong-Tzong Yau
Copyright Year	2007
Description	Author affiliation: Nat. Formosa Univ., Yunlin (Ming-Tzong Lin)
Abstract	In this paper, a real-time dynamics-based look-ahead (DBLA) algorithm for NURBS interpolator is proposed to generate a jerk-limited acceleration/deceleration (ACC/DEC) feedrate profile. The interpolator consists of three modules. The geometric module detects the local maximum/minimum (max/min) curvatures, and divides a NURBS curve into small segments. The dynamics module estimates contour errors at the sharp corners and adjusts the feedrates at the sharp corners. The jerk-limited module plans the feedrate profile of the curve according to the length of each segment and the given jerk limit. Simulations are performed to verify the real-time performance of the look-ahead algorithm. Finally, experiment results demonstrate that high-accuracy can be achieved with the proposed DBLA algorithm as compared to the adaptive-feedrate and the curvature-based feedrate interpolation algorithms.
Starting Page	1862
Ending Page	1867
File Size	317061
Page Count	6
File Format	PDF
ISBN	9781424414970
ISSN	01912216
DOI	10.1109/CDC.2007.4434746
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spline Surface topography Surface reconstruction Servomechanisms Machining Computer numerical control Interpolation Motion control Computer aided manufacturing Heuristic algorithms
Content Type	Text
Resource Type	Article

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