Hydrodynamic analysis of journal bearing considering the effects of cavitation and minuscule particle

Abstract

Abstract Journal bearing is the general element in the mechanical systems, which can provide the rotational motion of joints. The hydrodynamic analysis model of journal bearing is established and the effects of cavitation and minuscule particle are considered in the simulation model. The cavitation effects would be represented by the mixture model. Based on the CFD and DPM technology, the mixture lubrication medium of journal bearing is developed, which includes the minuscule element of solid in the lubrication film. And, the effects of structural parameters and operation conditions on the hydrodynamic characteristics of journal bearing is investigated. The simulation results could provide the suggestion for the design of structure and working condition.