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A numerical investigation of both thermal and texturing surface effects on the journal bearings static characteristics

Auteurs : Nacer Tala-Ighil, Michel FILLON
Année : 2015
Domaine : Génie mécanique
Type : Publication
Revue : Tribology International
Résumé en PDF : (résumé en pdf)
Fulltext en PDF : (.pdf)
Mots clés : Journal bearings, Reynolds equation, Hydrodynamic lubrication, Stribeck curve, texture

Résumé :

Journal bearing characteristics modellization has been investigated in this paper for both cases of texture presence or absence onto the bearing surface. The thermal effect has been studied. The used numerical approach in this analysis is finite difference method. The textured bearing performance enhancement passes essentially by a minimum film thickness and a friction torque improvement through an appropriate surface texture geometry and right texture distribution on the bearing surface. It is found that the simulations results are in good concordance with those issued from the literature. The obtained results by considering the temperature effect are more realistic.