An interpolation algorithm of B-spline curve based on S-curve acceleration/deceleration with interference pre-treatment Online publication date: Sat, 11-Dec-2021
by Wang Guirong; Wang Qi; Cui Xiaohong; Xu Suan; Zhang Shiwei
International Journal of Computer Applications in Technology (IJCAT), Vol. 66, No. 1, 2021
Abstract: The B-spline curve interpolation algorithm based on S-curve acceleration/deceleration (ACC/DEC) with interference pre-treatment is proposed to achieve a smooth transition of feed-rate, and to reduce the impact with acceleration mutation in Computer Numerical Control (CNC) machining. According to the demand of chord error, the algorithm divides a B-spline curve by velocity cusps. The interference points of the whole curve can be found out by using the S-curve ACC/DEC calculation for the velocity cusps of the whole curve from the forward and reverse directions. Then, the feed-rate of interference points is re-determined to avoid jerk overrun on the curve segments between mutual interference points, so as to improve the processing stability of machine tools. The simulation and experiment results demonstrate that the algorithm can obtain the smooth transition of feed-rate and acceleration in CNC machining, and ensured that the jerk can meet the ACC/DEC of system.
Online publication date: Sat, 11-Dec-2021
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Computer Applications in Technology (IJCAT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org