An iterative feedrate optimization method for real-time NURBS interpolator
An iterative feedrate optimization method for real-time NURBS interpolator
复制标题
实时NURBS插补器的迭代进给速度优化方法
DOI:
10.1007/s00170-011-3847-8
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发表时间:
2012-10
影响因子:
3.4
通讯作者:
Song, Zhan
中科院分区:
文献类型:
--
作者:
Zhang, Xiao-ting;Song, Zhan
Non-uniform rational B-spline (NURBS) interpolator has been widely used in modern manufacturing systems to machine arbitrary geometries with great relief of the data flow bottleneck and feedrate fluctuation. However, in practice, real-time feedrate does not always meet the computer numerical control (CNC) command exactly subject to the system dynamics. To solve this problem, we present a real-time NURBS interpolator with feedrate optimization for CNC machining tools in this work. The parametric curve is first approximated with the Adams–Bashforth method which provides uniform feedrate in each sampling period in the interpolation process. And then, a feedback scheme is introduced to adjust the feedrate in real time so as to guarantee a specified deviation between the measured and the desired feedrate. The convergence condition for this closed-loop algorithm is presented and analyzed. Simulation and real experiments on anX–Ytable are employed to verify its feasibility. And the comparisons with traditional interpolators based on Taylor's expansion are also provided to demonstrate its improvement in accuracy.
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DOI:
10.1147/rd.345.0736
发表时间:
1990-09
期刊:
--
影响因子:
--
作者:
R. Farouki;T. Sakkalis
通讯作者:
R. Farouki;T. Sakkalis
DOI:
10.1007/s00170-003-1998-y
发表时间:
2005-08
期刊:
The International Journal of Advanced Manufacturing Technology
影响因子:
--
作者:
Jin-ho Park;Sung-Ho Nam;Min-Yang Yang-Min-Yang-Yang-2379405
通讯作者:
Jin-ho Park;Sung-Ho Nam;Min-Yang Yang-Min-Yang-Yang-2379405
DOI:
10.5860/choice.43-1615
发表时间:
2005
期刊:
--
影响因子:
--
作者:
Wŏn-yŏng Yang;Wenwu Cao;Tae-Sang Chung;John Morris
通讯作者:
Wŏn-yŏng Yang;Wenwu Cao;Tae-Sang Chung;John Morris
DOI:
10.1016/s0167-8396(01)00058-9
发表时间:
2001-09
期刊:
Comput. Aided Geom. Des.
影响因子:
--
作者:
R. Farouki;C. Manni;A. Sestini
通讯作者:
R. Farouki;C. Manni;A. Sestini
影响因子:
4.3
作者:
YANG, DCH;KONG, T
通讯作者:
KONG, T