folyóiratnyomást
Folyóiratnyomás, in tribology, denotes the pressure distribution within the lubricant film that separates a rotating journal from the bearing surface. The term is primarily used in the analysis of journal bearings and related configurations. The pressure field arises from viscous forces in the lubricant together with the geometry of the clearance, the speed of the journal, and any external forces acting on the bearing. In hydrostatic or hybrid bearings, external pressure sources can also contribute to the film pressure.
The classical mathematical treatment uses lubrication theory. In thin-film regions, the Reynolds equation describes how the
Measurement of folyoiratnyomás is challenging; in practice, pressures are often inferred from bearing load, temperature, and