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ABSTRACT
The aim of this article is to propose a model capable of estimating the friction along a heavily loaded journal bearing under mixed and hydrodynamic lubrication. The finite element analysis–computational fluid dynamics (FEA-CFD) model takes into consideration the effect of solid deformations, the asperity contact phenomena, and the influence of metal–metal contact in the Reynolds equation. The Stribeck curve for a plain journal bearing under different operational conditions is calculated and compared to experimental results. The major contribution of the article is the novelty of including mixed lubrication, high-load conditions, and thermal effects in a single computational steady-state model. This comprehensive model, not limited to a specific range of operational conditions, can help during design and for health condition monitoring.
Funding
The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under Grant Agreement No. 605779 (project RepAIR). The text reflects the authors’ views. The European Commission is not liable for any use that may be made of the information contained therein. For further information, see http://www.rep-air.eu/.