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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
