LOOK-AHEAD NURBS-PH INTERPOLATION FOR HIGH SPEED CNC MACHINING
نویسنده:
, , ,سال
: 2010
چکیده: Various methods for parametric interpolation of NURBS
curves have been proposed in the past. However, the errors
caused by the approximate nature of the NURBS interpolator
were rarely taken into account. This paper proposes an
integrated look-ahead algorithm for parametric interpolation
along NURBS curves. The algorithm interpolates the sharp
corners on the curve with the Pythagorean-hodograph (PH)
interpolation. This will minimize the geometric and interpolator
approximation errors simultaneously. The algorithm consists of
four different modules: a sharp corner detection module, a PH
construction module, a jerk-limited module, and a dynamics
module. Simulations are performed to show correctness of the
proposed algorithm. Experiments on an X-Y table confirm that
the developed method improves tracking and contour
accuracies significantly when compared to previously proposed
adaptive-feedrate and curvature-feedrate algorithms.
curves have been proposed in the past. However, the errors
caused by the approximate nature of the NURBS interpolator
were rarely taken into account. This paper proposes an
integrated look-ahead algorithm for parametric interpolation
along NURBS curves. The algorithm interpolates the sharp
corners on the curve with the Pythagorean-hodograph (PH)
interpolation. This will minimize the geometric and interpolator
approximation errors simultaneously. The algorithm consists of
four different modules: a sharp corner detection module, a PH
construction module, a jerk-limited module, and a dynamics
module. Simulations are performed to show correctness of the
proposed algorithm. Experiments on an X-Y table confirm that
the developed method improves tracking and contour
accuracies significantly when compared to previously proposed
adaptive-feedrate and curvature-feedrate algorithms.
کلیدواژه(گان): Numerical control,Intrepolator,PH Curve
کالکشن
:
-
آمار بازدید
LOOK-AHEAD NURBS-PH INTERPOLATION FOR HIGH SPEED CNC MACHINING
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| contributor author | بهنام معتکف ایمانی | en |
| contributor author | امیرمحمد قندهاریون | en |
| contributor author | Behnam Moetakef Imani | fa |
| contributor author | Amirmohammad Ghandehariun | fa |
| date accessioned | 2020-06-06T13:57:35Z | |
| date available | 2020-06-06T13:57:35Z | |
| date copyright | 7/12/2010 | |
| date issued | 2010 | |
| identifier uri | http://libsearch.um.ac.ir:80/fum/handle/fum/3376451 | |
| description abstract | Various methods for parametric interpolation of NURBS curves have been proposed in the past. However, the errors caused by the approximate nature of the NURBS interpolator were rarely taken into account. This paper proposes an integrated look-ahead algorithm for parametric interpolation along NURBS curves. The algorithm interpolates the sharp corners on the curve with the Pythagorean-hodograph (PH) interpolation. This will minimize the geometric and interpolator approximation errors simultaneously. The algorithm consists of four different modules: a sharp corner detection module, a PH construction module, a jerk-limited module, and a dynamics module. Simulations are performed to show correctness of the proposed algorithm. Experiments on an X-Y table confirm that the developed method improves tracking and contour accuracies significantly when compared to previously proposed adaptive-feedrate and curvature-feedrate algorithms. | en |
| language | English | |
| title | LOOK-AHEAD NURBS-PH INTERPOLATION FOR HIGH SPEED CNC MACHINING | en |
| type | Conference Paper | |
| contenttype | External Fulltext | |
| subject keywords | Numerical control | en |
| subject keywords | Intrepolator | en |
| subject keywords | PH Curve | en |
| identifier link | https://profdoc.um.ac.ir/paper-abstract-1015797.html | |
| conference title | 10th Biennial Conference on Engineering Systems Design and Analysis ESDA2010 | en |
| identifier articleid | 1015797 |