HAL Id: hal-01504171
https://hal.archives-ouvertes.fr/hal-01504171
Submitted on 8 Apr 2017
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Simulation of dry and lubricated contacts in multi-body systems
Eric Quetel, Johannes Müllers, Daniel Coutellier, Markus Hinterkausen
To cite this version:
Eric Quetel, Johannes Müllers, Daniel Coutellier, Markus Hinterkausen. Simulation of dry and lu- bricated contacts in multi-body systems. 8e Colloque national en calcul des structures, CSMA, May 2007, Giens, France. �hal-01504171�
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* LAMIH UMR CNRS 8530, Université de Valenciennes et du Hainaut Cambrésis 59313 Valenciennes Cedex 9, France
** Robert Bosch GmbH, Corporate Research, CR/ARU1
Robert-Bosch-Platz 1, 70839 Gerlingen-Schillerhöhe, Germany eric.quetel@de.bosch.com
*** Robert Bosch GmbH, Diesel Systems, DS/ETI1 Wernerstrasse 51, 70469 Stuttgart-Feuerbach, Germany
ABSTRACT. The present paper investigates the modeling of counterformal elastohydrodynamic lubricated (EHL) contacts in multi-body system (MBS) environments.
The aim is to obtain a representation of the dynamic behaviour and characteristic values for lifetime calculations. Two contact models are presented for the study of cam-roller tappet and raceway-roller contacts. The first model is a one-dimensional representation of the EHL contact behaviour. It is based on the calculation of the central lubrication film thickness by means of dimensionless values (functions of the operating conditions) and provides a simplified model of the mixed lubrication. The second one, still under development, investigates the modeling of 3D dry and lubricated contacts. This paper proposes, in the latter case, some perspectives and a discussion of its implementation.
RÉSUMÉ. L’article suivant concerne la modélisation de contacts élastohydrodynamiques entre semi-espaces dans les environnements de systèmes multi-corps dans le but d’obtenir une représentation du comportement dynamique de mécanismes complexes et d’évaluer les grandeurs caractéristiques nécessaires aux calculs de durée de vie. Deux modèles de contact élastohydrodynamique sont ainsi présentés pour l’étude de systèmes du type came- roulement ou piste-roulement. Le premier modèle, qui est une représentation unidimensionnelle du contact, s’appuie sur le calcul de la hauteur du film de lubrifiant au centre du contact, donnée à partir de coefficients sans dimension dépendant des conditions de fonctionnement. Il inclut une modélisation simplifiée du frottement mixte. Le second, encore en cours de développement, concerne la modélisation 3D de contacts secs et lubrifiés. L’article contient, à cet effet, une discussion ainsi que quelques perspectives quant à son implémentation.
KEYWORDS: elastohydrodynamic, lubrication, mixed lubrication, multi-body system, contact.
MOTS-CLÉS: lubrification, élastohydrodynamique, frottement mixte, système multi-corps, contact.
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