DIMENSIONAL METROLOGY OF FLEXIBLE PARTS: IDENTIFICATION OF GEOMETRICAL DEVIATIONS FROM OPTICAL MEASUREMENTS

Claire Lartigue (1) , François Thiebaut (1) , Pierre Bourdet (1) , Nabil Anwer (1)

1 LURPA - Laboratoire Universitaire de Recherche en Production Automatisée

This paper deals with an approach to identify geometrical deviations of flexible parts from optical measurements. Each step of the approach defines a specific issue to which we try to give an answer. The problem of measurement uncertainties is solved using an original filtering method, leading to only consider a few number of points. These points are registered on a mesh of the CAD model of the constrained geometry. From finite element simulation of the measuring setup and of external forces, the shape resulting from deflection can be identified. Finally, geometrical deviations are obtained by subtracting geometrical deflections to measured geometrical deviations.

Domaines: Génie mécanique [physics.class-ph]

Claire Lartigue, François Thiebaut, Pierre Bourdet, Nabil Anwer. DIMENSIONAL METROLOGY OF FLEXIBLE PARTS: IDENTIFICATION OF GEOMETRICAL DEVIATIONS FROM OPTICAL MEASUREMENTS. Advanced Mathematical and Computational Tools in Metrology VII, 2005, Caparica, Portugal. pp.196-203, ⟨10.1142/9789812774187_0019⟩. ⟨hal-01226524⟩