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Simulation of dry and lubricated contacts in multi-body systems

Published online by Cambridge University Press:  09 July 2008

Éric Quetel ,
Johannes Müllers ,
Daniel Coutellier  and
Markus Hinterkausen
Éric Quetel
Affiliation:
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
Johannes Müllers
Affiliation:
Robert Bosch GmbH, Diesel Systems, DS/ETI1, Wernerstrasse 51, 70469 Stuttgart-Feuerbach, Germany
Daniel Coutellier
Affiliation:
LAMIH UMR CNRS 8530, Université de Valenciennes et du Hainaut Cambrésis, 59313 Valenciennes Cedex 9, France
Markus Hinterkausen
Affiliation:
Robert Bosch GmbH, Corporate Research, CR/ARU1, Robert-Bosch-Platz 1, 70839 Gerlingen-Schillerhöhe, Germany
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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 of machine elements and characteristic values as the lubrication film thickness for lifetime calculations. Two contact models are presented for the study of cam-roller tappet and raceway-roller systems. 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. The fluid-structure interaction is here fully considered and a discretised form of the contact problem is solved using an iterative algorithm. This paper proposes, in the latter case, some perspectives and a discussion of its implementation.

Keywords

lubricationElastohydrodynamicmixed lubricationmulti-body systemcontactLubrificationélastohydrodynamiquefrottement mixtesystème multi-corpscontact
Type
Research Article
Information
Mechanics & Industry , Volume 9 , Issue 2 , March 2008 , pp. 125 - 131
Copyright
© AFM, EDP Sciences, 2008

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