期刊
TRIBOLOGY INTERNATIONAL
卷 109, 期 -, 页码 258-273出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2016.12.046
关键词
CFD; Fluid-solid interactions; Elasto-hydrodynamic lubrication (EHL); Rolling element bearings
资金
- SKF Engineering and Research Centre
- EPSRC [EP/N025954/1]
- EPSRC [EP/N025954/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/N025954/1] Funding Source: researchfish
This paper describes a new computational fluid dynamics methodology for modelling elastohydrodynamic contacts. A finite-volume technique is implemented in the 'OpenFOAM' package to solve the Navier-Stokes equations and resolve all gradients in a lubricated rolling-sliding contact. The method fully accounts for fluid solid interactions and is stable over a wide range of contact conditions, including pressures representative of practical rolling bearing and gear applications. The elastic deformation of the solid, fluid cavitation and compressibility, as well as thermal effects are accounted for. Results are presented for rolling-sliding line contacts of an elastic cylinder on a rigid flat to validate the model predictions, illustrate its capabilities, and identify some example conditions under which the traditional Reynolds-based predictions deviate from the full CFD solution.
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