hydrodynamic lubrication


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fluid film lubrication

fluid film lubrication
A type of lubrication in which the surfaces to be lubricated are separated by a substantial quantity of oil. The oil has the effect of keeping the two surfaces apart. Also called hydrodynamic lubrication.
References in periodicals archive ?
and Cheng, H.S., "An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication," Journal of Lubrication Technology 100:12-17, 1978, doi:10.1115/1.3453103.
Noncontacting asperities work with hydrodynamic lubrication or elastohydrodynamic lubrication depending on the level of elastic deformation.
Sun et al., "Theoretical analysis on hydrodynamic lubrication of cylinder micro-dimple surface texture," Journal of Nanjing University of Aeronautics and Astronautics, vol.
In this case, there is fully hydrodynamic lubrication and the piston rotates relative to the interior surface of the cylindrical bore with a frequency equal to the shaft rotation frequency.
Tribology and tribochemistry research in Leeds, for instance, covers a broad portfolio of analytical and experimental projects studying friction and wear phenomena occurring in all contact modes, from dry to the hydrodynamic lubrication regime.
From the Stribeck curve presented in Fujimoto et al.'s article [3], it shows that fuel economy improvement can be achieved by lowering the friction coefficient in both boundary and hydrodynamic lubrication conditions through the introduction of friction modifier and lower viscosity of engine oil[4,5,6].
To analyze the hydrodynamic lubrication property of micro-grooved oil-lubricated parallel slider bearings, Shi and Ni [14] established a two-dimensional computational fluid dynamics simulation model.
According to the hydrodynamic lubrication theory, the thin film assumption in hydrodynamic bearings is characterized by the small ratio of film thickness to the bearing's other physical dimensions; that is, c [much less than] R.
Larsson, "Two-dimensional CFD-analysis of micro-patterned surfaces in hydrodynamic lubrication," Journal of Tribology, vol.
In the design of journal bearings, the Sommerfeld number, or the bearing characteristic number, is a dimensionless quantity used extensively in hydrodynamic lubrication analysis.
The water-lubricated bearing in seawater desalination pump not only simplifies the structure but also reduces the friction and energy consummation caused by the mechanical drive, which is due to the small friction factor of elastic hydrodynamic lubrication, and especially avoids the contamination caused by the leakage.
Deheri, "Effect of surface roughness on hydrodynamic lubrication of slider bearings," Tribology Transactions, vol.