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tolérances fonctionnelles

Mechanics & Industry (1)

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Tolérancement fonctionnel optimisé par la méthodedes dispersions
Nassima Medjadi-Cheikh, Saïd Hamou, Djezouli Moulai-Khatir, Abdelmadjid Cheikh, Jean-Marc Linares
Journal:

Mechanics & Industry / Volume 12 / Issue 2 / 2011

Published online by Cambridge University Press:

22 April 2011, pp. 139-146

Print publication:

2011
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Cet article présente l’optimisation du tolérancement fonctionnel par la méthode des dispersions, celle-ci a fait ces preuves dans l’optimisation des cotes de fabrication. Dans ce travail la méthode des dispersions inconnues est combinée avec la méthode du transfert minimum pour la modélisation de l’automatisation de la simulation des exigences fonctionnelles d’un assemblage mécanique. La simulation consiste en l’extraction automatique des chaînes fonctionnelles d’une part, et en l’optimisation des dispersions d’autre part. Enfin, les cotes fonctionnelles sont synthétisées à partir des dispersions optimisées en terme de cotes moyennes et intervalles de tolérances centrés. Elles sont en adéquation avec l’écriture au sens de la norme ISO des cotes fonctionnelles.