GARCÍA, Sonia C.; DELOS, Vincent; TEISSANDIER, Denis

doi:10.1016/j.procir.2022.10.018

GARCÍA, Sonia C.
Institut de Mécanique et d'Ingénierie [I2M]

DELOS, Vincent
Institut de Mécanique et d'Ingénierie [I2M]

TEISSANDIER, Denis
Institut de Mécanique et d'Ingénierie [I2M]

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Article de revue

Ce document a été publié dans

Procedia CIRP. 2022-01-01, vol. 114, p. 123-128

Résumé en anglais

During the manufacturing process of a product, variability in its parts is unavoidable. Tolerance analysis allows estimating the consequences of the component's deviation of a mechanism on its functionality. Nowadays, it is possible to determine the contribution of each surface and/or contact on the final result in isostatic mechanisms by using the tools already presented in the literature; however, it is still a challenge to do so in over-constrained mechanisms. In previous works, we introduced a method based on prismatic polyhedra to model over-constrained mechanisms. In this paper, several simulations based on the previous approach are performed, varying the tolerances of the surfaces and contacts of the mechanism. The use of statistical methods to analyze the previous simulations’ data is proposed to quantify the contribution of local deviations with respect to the total variation of the mechanism. This analysis determines the most relevant contacts, hence the most critical parts of the mechanism. The process is applied to a pump as an over-constrained case study and uses the prismatic polyhedra method for tolerance analysis.< Réduire

Mots clés en anglais

Design of experiments

Factorial design

Polyhedra-based method

Sensitivity analysis

Sets of constraints

Tolerance analysis

URI

https://oskar-bordeaux.fr/handle/20.500.12278/172369

DOI

http://dx.doi.org/10.1016/j.procir.2022.10.018

Unités de recherche

Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295

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Sensitivity analysis for tolerance allocation of over-constrained mechanisms

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Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche