NURBS Curves Interpolation Based on Dynamic Characteristics of Machine Tools

Abstract:

This paper presents an interpolation algorithm for non-uniform rational B-spline (NURBS) curves. A real-time look-ahead function is introduced to deal with the abrupt change of feedrate. In the proposed algorithm, feedrate can be adaptively adjusted according to the radius of curvature of curves. Dynamic characteristic of machine tools is considered while the feedrate is adjusted. The experimental results show that this algorithm significantly reduced the machining error brought about by the instantaneous acceleration fluctuations of machine tools.

• Periodical: Advanced Materials Research (Volumes 102-104)
• Pages: 353-357
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.102-104.353
• Online since: March 2010
• Authors: Jin Hua Dong, Hui Qin Cao
• Keywords: Dynamic, Interpolation, Look-Ahead, NURBS Curve

References

[1] R.T. Farouki and Y.E. Tsai: Comput-Aided Des, Vol. 33 (2001), pp.155-165.

[2] M.Y. Cheng, M.C. Tsai and J.C. Kuo: Int J Mach Tools Manuf, Vol. 42 (2002), pp.801-813.

[3] T. Yong and R. Narayanaswami: Comput-Aided Des, Vol. 35 (2003), pp.1249-1259.

[4] S. Yeh and P. Hsu: Comput-Aided Des, Vol. 34 (2002), pp.229-237.

[5] J.B. Wang and H.T. Yau: Int J Adv Manuf Technol, Vol. 41 (2009), pp.1169-1185.