Fluid–Structure Interaction Analysis in Ball Bearings Subjected to Hydrodynamic and Mixed Lubrication

The mathematical and computational modeling of the lubricated contact between bearing surfaces is presented to analyze sliding friction using a realistic 3D model on microscopic scale. fluid–structure interaction evaluates effects lubricant film thickness in hydrodynamic mixed lubrication regimes. Higher pressures are seen at peaks asperities, especially during lubrication, which fluid volume smaller. Calculated coefficients from homogenization procedure shear normal forces close 0.0045 0.014, respectively, were accurate within range specified Stribeck curve. Results demonstrate allows examining rough surfaces.