A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling

Fang L, Liu G, Li Q, Zhang H (2022)
International Journal of Advanced Manufacturing Technology 121(3-4): 2585-2595.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Fang, Lijin; Liu, Guanghui; Li, QiangUniBi ; Zhang, Hualiang
Abstract / Bemerkung
Parametric interpolation has been widely used in robot control because of its advantages over traditional linear or circular interpolation. The NURBS interpolation based on S-shaped feedrate scheduling can realize the smooth continuous motion of robots, but it also faces two challenges. One challenge is that when the NURBS curve is split into multiple blocks, if one or more blocks are too short, the final feedrate profile is often discontinuous. The other challenge is that the NURBS curve cannot be obtained entirely due to calculation errors. In this paper, a high-precision NURBS interpolator based on S-shaped feedrate scheduling is proposed. In this interpolator, a bidirectional velocity scanning scheme is developed to effectively handle the too short split blocks of the NURBS curve. Meanwhile, an optimization algorithm is proposed to ensure the precision of NURBS curves. The feasibility and advantages of the proposed method are verified through case studies.
Stichworte
NURBS; Interpolation; S-shaped feedrate profile; Industrial robot
Erscheinungsjahr
2022
Zeitschriftentitel
International Journal of Advanced Manufacturing Technology
Band
121
Ausgabe
3-4
Seite(n)
2585-2595
ISSN
0268-3768
eISSN
1433-3015
Page URI
https://pub.uni-bielefeld.de/record/2963307

Zitieren

Fang L, Liu G, Li Q, Zhang H. A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling. International Journal of Advanced Manufacturing Technology. 2022;121(3-4):2585-2595.
Fang, L., Liu, G., Li, Q., & Zhang, H. (2022). A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling. International Journal of Advanced Manufacturing Technology, 121(3-4), 2585-2595. https://doi.org/10.1007/s00170-022-09411-w
Fang, L., Liu, G., Li, Q., and Zhang, H. (2022). A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling. International Journal of Advanced Manufacturing Technology 121, 2585-2595.
Fang, L., et al., 2022. A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling. International Journal of Advanced Manufacturing Technology, 121(3-4), p 2585-2595.
L. Fang, et al., “A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling”, International Journal of Advanced Manufacturing Technology, vol. 121, 2022, pp. 2585-2595.
Fang, L., Liu, G., Li, Q., Zhang, H.: A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling. International Journal of Advanced Manufacturing Technology. 121, 2585-2595 (2022).
Fang, Lijin, Liu, Guanghui, Li, Qiang, and Zhang, Hualiang. “A high-precision non-uniform rational B-spline interpolator based on S- shaped feedrate scheduling”. International Journal of Advanced Manufacturing Technology 121.3-4 (2022): 2585-2595.
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2022-05-25T15:23:55Z
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