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Étude théorique et expérimentale du comportement non-linéaire d'un engrenage droit induit par le jeu entre dents

Published online by Cambridge University Press:  13 November 2007

Sébastien Espin ,
Joël Perret-Liaudet  and
Ahmet Kahraman
Sébastien Espin
Affiliation:
Laboratoire de Tribologie et Dynamiques des Systèmes, UMR 5513, École Centrale de Lyon, 69134 Écully Cedex, France
Joël Perret-Liaudet
Affiliation:
Laboratoire de Tribologie et Dynamiques des Systèmes, UMR 5513, École Centrale de Lyon, 69134 Écully Cedex, France
Ahmet Kahraman
Affiliation:
Department of Mechanical Engineering, The Ohio State University, Columbus, OH 43210-4678, USA
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Abstract

Nous nous intéressons dans cette étude à un modèle dynamique non-linéaire d'un engrenage droit à un degré de liberté. Ce modèle permet de prendre en compte la présence du jeu entre dents ainsi que la non-linéarité de la raideur d'engrènement associée à l'évolution instantanée du nombre de dents en prise. Notre étude concerne le cas d'engrenages corrigés par des corrections linéaires en tête de denture ainsi que des engrenages non corrigés. Le but de cette étude a été d'analyser la pertinence de ce modèle vis-à-vis de résultats expérimentaux mettant en œuvre un banc d'essais dont les caractéristiques, notamment aux niveaux de la micro-géométrie des dentures, sont parfaitement contrôlées. En conclusion, les résultats comparatifs sont encourageants, même si nous n'avons pas pu reproduire par simulation certains phénomènes non-linéaires observés. Parmi ceux-ci, on peut citer le cas de la cascade harmonique observée sur un engrenage corrigé et prenant naissance au niveau de la résonance principale.

Keywords

Gearmeshing stiffnessbacklashvibrationnon-linearimpactmodellingexperimentalEngrenageraideur d'engrènementjeuvibrationnon-linéaireimpactmodèleexpérimental
Type
Research Article
Information
Mechanics & Industry , Volume 8 , Issue 4 , July 2007 , pp. 357 - 364
Copyright
© AFM, EDP Sciences, 2007

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