An accurate adaptive parametric curve interpolator for NURBS curve interpolation

作者：Du, Daoshan; Liu, Yadong^*; Yan, Cunliang; Li, Congxin

来源：International Journal of Advanced Manufacturing Technology, 2007, 32(9-10): 999-1008.

DOI：10.1007/s00170-006-0412-y

• adaptive interpolator
• feedrate sensitive corner
• look-ahead
• NURBS

In this paper, an adaptive parametric curve interpolator with a real-time look-ahead function is developed for non-uniform rational B-spline curves (NURBS) interpolation, which considers the maximum acceleration/deceleration of the machine tool. In the proposed interpolator, both constant feedrate and high accuracy are achieved while the inconsistency of feedrate is reduced dramatically as well. In order to deal with the acceleration/deceleration around the feedrate sensitive corners, a look-ahead function is introduced to detect and adjust the feedrate adaptively. Two cases were respectively studied to evaluate the feasibility of the developed interpolator: one is for feedrate sensitive arc corner; the other is for feedrate sensitive sharp corner.

• 出版日期2007-4
• 单位上海交通大学