Abstract
This paper deals with a method to extract the free-state shape of aeronautical assembly components from part measurements independently of the assembly configuration of use. Knowledge of the free-state shapes enables to assess the geometrical conformity of an assembly through the assembly simulation using Finite Element Method (FEM). The component is measured, using optical means in a given configuration for which the set-up is well-known. A coarse cleaning is thus applied on the measured data to obtain manipulative data in the CAD model frame. Meanwhile, displacements due to the measuring set-up and to gravity are evaluated from the nominal geometry using FEM. Finally, the free-state shape, as a finite element mesh, is obtained by moving the nominal mesh nodes by a distance equal to the measured defect minus the evaluated displacement. The approach is applied to an aeronautical component.
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Gringoz, F., Thiébaut, F., Lartigue, C., Soufflet, B. (2019). Free-State Shape of Aeronautical Components for Assembly Simulation. In: Cavas-Martínez, F., Eynard, B., Fernández Cañavate, F., Fernández-Pacheco, D., Morer , P., Nigrelli, V. (eds) Advances on Mechanics, Design Engineering and Manufacturing II. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-12346-8_20
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DOI: https://doi.org/10.1007/978-3-030-12346-8_20
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