Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

INDET Berichtzusammenfassung

Project ID: G4RD-CT-2002-00830
Gefördert unter: FP5-GROWTH
Land: France

Catia V5 macro for remote part griding (3D data fusion and visualisation)

PDM software gives NDT inspector a good overview of the environment required for testing.

The main objective is to optimise the scanning curve in terms of shape and sampling in order to cover the defined inspection designed area.

We have studied the correlation of a standard mesh part with an NDT image to produce a corrected 2d NDT image. We apply this technique in controlling the meshing of the part through a representative curve of the scanning. At each point of inspection measurement of the scanning trajectory we process ray tracing to retrieve the following information:

- Order of points
- x,y,z of the emerging projected point of the beam on part surface.
- d1 distance from the plan of the scanning curve and front part surface.
- d1 distance from the plan of the scanning curve and back part surface.
- ep part thickness at the emerging projected point
- a1 angle from surface normal at the front emerging projected point and plane xz.
- a2 angle from surface normal at the front emerging projected point and plane yz.
- a3 angle from surface normal at the back emerging projected point and plane xz.
- a4 angle from surface normal at the back emerging projected point and plane yz

This parameters will be passed through a processing function to create a 3d corrected NDT image of the inspection through an ASCII format file.

The sampling step in the direction of the main displacement and the step in the incremental direction describe the trajectory curve can be set by the operator.

We will use CATIA V5 to get the cross correlation matrix between a plane curve and part surface. DASSAULT SYSTEMES develops a visual basic function to achieve this work.

Verwandte Informationen

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DASSAULT AVIATION S.A.
1 avenue du parc
95100 Argenteuil
France
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