Abstract
Wear prediction of journal bearings has been investigated by the numerical analysis for mixed lubrication which include solid contact in the oil film. The modified Reynolds equation and the elastic contact equation, considering the effect of surface roughness, are introduced in this analysis. Wear volume is given by the wear ratio of bearing materials and the contact pressure obtained by the mixed lubrication analysis. The prediction is applied to the elastic journal bearing that the deformation is calculated by FEM. The location and the timing of wear generation, and its increasing gradient that had been obtained by the numerical analysis gave good agreement with the results of the experiment.
