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Impact of lubricant contamination with water on hydrodynamicthrust bearing performance

Published online by Cambridge University Press:  15 September 2011

Elias Harika ,
Mathieu Helene ,
Jean Bouyer  and
Michel Fillon
Elias Harika*
Affiliation:
EDF R&D Département AMA/Groupe T63, 1 avenue du Général de Gaulle, Bureau IB008, 92141 Clamart Cedex, France
Mathieu Helene
Affiliation:
EDF R&D Département AMA/Groupe T63, 1 avenue du Général de Gaulle, Bureau IB008, 92141 Clamart Cedex, France
Jean Bouyer
Affiliation:
Institut Pprime, Département Génie Mécanique et Systèmes Complexes CNRS, Université de Poitiers, ENSMA, UPR 3346, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
Michel Fillon
Affiliation:
Institut Pprime, Département Génie Mécanique et Systèmes Complexes CNRS, Université de Poitiers, ENSMA, UPR 3346, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France
*
a Corresponding author:elias.harika@edf.fr
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Abstract

Several studies have been carried out in order to describe the impact ofwater-contaminated lubricants on lubrication performance. One approach considers thewater-contaminated oil as a homogeneous lubricant with physical characteristics varyingwith water concentration. The presented work is being achieved in order to experimentallyvalidate this theory. First investigations showed that the variation of contaminatedlubricant viscosity has the most significant effect on lubricating performance.Consequently, the lubricant viscosity is the only parameter taken into account in thisstudy. Thus, based on the rheological measurements, water-in-oil emulsion viscosity hasbeen modelled according to water concentration and temperature. Water concentration wasconsidered relatively to total mass of oil: the mass concentration varied then from 0 to7% and temperature from 10 to 80 °C. Viscosity modelling was then used to perform thenumerical simulations of a hydrodynamic thrust bearing supplied with water contaminatedoil. Finally, the experimental validation will be done by measuring various bearingcharacteristics like the film/pad temperature, the film thickness and the friction torqueon a tilting pad thrust bearing test rig.

Keywords

Thrust bearingtilting padswater contaminationviscosityemulsionButée à patins oscillantspollution par de l’eauviscositéémulsion
Type
Research Article
Information
Mechanics & Industry , Volume 12 , Issue 5 , 2011 , pp. 353 - 359
Copyright
© AFM, EDP Sciences 2011

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