Trajectory Model of J-Type Groove and its Curve Fitting of B-Spline

Chang Liang Chen; Sheng Sun Hu; Dong Lin He

doi:10.4028/www.scientific.net/AMM.58-60.1396

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 58-60Trajectory Model of J-Type Groove and its Curve...

Trajectory Model of J-Type Groove and its Curve Fitting of B-Spline

Abstract:

This paper describes the complexity and particularity of the trajectory of tube-sphere intersection and derives mathematical model of the track; according to characteristics of B-Spline curve, the track intersecting curve is partitioned ,and determine the mathematical relationship between the control points (deBoor point) and the data points of J-type groove; using cubic non-uniform irrational B-Spline theory, generate segments of approximation curves, then first and last point of each segment are constrained, so that combination curves can be seen as a whole curve with C¹ continuity; programming the trajectory of the preprocess module with C# language, it has advantages of approximate accuracy and high efficiency, thereby it can increase accuracy and precision of welding terminal position, so that the overall system has a metronomic characteristic.

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Periodical:

Applied Mechanics and Materials (Volumes 58-60)

Pages:

1396-1401

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.58-60.1396

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Online since:

June 2011

Authors:

Chang Liang Chen, Sheng Sun Hu, Dong Lin He

Keywords:

B-Spline Curve Approximation, C¹ Continuity, Tube-Sphere Intersection, Welding Automation

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References

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