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Theses

Intégration d'un outil d'aide au tolérancement dans un logiciel de C.F.A.O.

Abstract : ln the majority of the current CAD/CAM systems, the telegrams were defined by using graphical representation tools (dimensions, frameworks of tolerances, reference mark, texts...). This syntactic and semantic representation must be correct. The syntax rules are recognized by the software, but not all. It is still possible to write or to create tolerances which are not correct with syntactic and semantic rules. To check that the semantic tolerance is correct, it is necessary to give to the designer an interpretation in accordance with the rules defined by the standards. However, these rules are complex. Until now only a technician, having a thorough knowledge can check if a tolerance on the drawing have a correct semantic. I develop an integrated system into the TopSolid software that can project the tolerances on the drawing tram the part in the 3D model. So, the user will work on a 3D model. After to have defined the toleranced surfaces on the part, the software makes to check the parameters and the choices of the user. The designer will be able to define tolerance datum. Their coherence with the geometrical tolerance will be automatically checked progressively during their design. Then, the software helps the designer to determine which surfaces are able to be taken as tolerance datum and that which must be toleranced. This work will make it possible to define a complete tolerancing with hierarchical functional surfaces. This doctoral thesis proposes to assist the designer in the tolerancing process. I place at his disposal with my work a knowledge transfer tool for tolerancing and a help workshop to the decision-making.
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https://tel.archives-ouvertes.fr/tel-00419238
Contributor : Serge Samper <>
Submitted on : Wednesday, September 23, 2009 - 10:35:51 AM
Last modification on : Friday, November 6, 2020 - 3:34:55 AM
Long-term archiving on: : Tuesday, June 15, 2010 - 10:11:57 PM

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  • HAL Id : tel-00419238, version 1

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Citation

Legrais Gaëtan. Intégration d'un outil d'aide au tolérancement dans un logiciel de C.F.A.O.. Mécanique [physics.med-ph]. Université de Savoie, 2005. Français. ⟨tel-00419238⟩

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