Resumo

SUAREZ-BUSTAMANTE, F.A.; TORO-BOTERO, F.M.  e  VELEZ-RESTREPO, J.M.. Influence of Conditioned Surface Textures on Plain Journal Bearing Performance Working on HL Conditions. Ing. invest. y tecnol. [online]. 2012, vol.13, n.3, pp.365-374. ISSN 2594-0732.

As an answer to the need for reducing friction losses on bearings, dynamic seals, piston rings, cutting tools and others, a lot of work has been dedicated to mechanical systems study whose surfaces have been textured in a controlled way. Theoretical models and experimental results have shown improvements on the tribological performance of these systems regarding untextured systems, working under the same conditions. This paper presents a numerical model for getting relationships among the operational conditions (load, speed, and dynamic viscosity), the minimum lubricate film thickness, the friction coefficient and the conditioned micro-topography of a plain sliding bearing working under a hydrodynamic regime. Moreover, regarding other similar works the constructed model allows studying the combined effect of the micro-wedges that work as micro-bearings, and the typical convergent macro-wedge of these study elements.

Palavras-chave : tribology; lubrication; textured surfaces; sliding bearings; friction; hydrodynamic.

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