Evaluation of the shape deviation of non rigid parts from optical measurements
- 124 Downloads
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 which we try to respond to. The problem of measurement uncertainties is solved using an original filtering method, which permits to only consider a few number of points. These points are registered on a mesh of the CAD model of the constrained geometry. The shape resulting from deflection can be identified through the finite-element simulation of the part’s deformation due to its own weight and the measuring set-up. Finally, geometrical deviations are obtained by subtracting geometrical deflections to measured geometrical deviations. The method is illustrated in an experimental test case.
KeywordsMeasurement Shape deviation Flexible part Optical measurement
Unable to display preview. Download preview PDF.
- 1.Breteau P Simulation d’assemblage flexible par la mesure—application au domaine de l’aéronautique PhD these, (2009), Ecole Normale Supérieure de CachanGoogle Scholar
- 11.Lartigue C, Thiébaut F, Bourdet P, Anwer N Dimensional metrology of flexible parts: identification of geometrical deviations from optical measurements. Ser Adv Math Appl Sci 72(200-):196–203Google Scholar
- 15.Franciosa P, Gerbino S, Patalano S (2010) Simulation of variational compliant assemblies with shape errors based on morphing mesh approach. The International Journal of Advanced Manufacturing Technology:1–15Google Scholar
- 17.Audfray N, Mehdi-Souzani C, Lartigue C (2012) Assistance to automatic digitizing system selection for 3D part inspection. ASME 2012 11th Biennial Conference on Engineering Systems Design And Analysis, ESDA2012, Nantes (France), CDRom paper N 82319Google Scholar