Finite element analysis of orifice-compensated multiple hole-entry worn hybrid journal bearing

This paper presents the analysis of a non-recessed worn hybrid journal bearing with orifice restrictors. Using Newton–Raphson method, FEM is used for solving Reynolds equation governing the flow of lubricant in the bearing clearance space. The bearing performance characteristics are presented for a wide range of wear depth. The results are computed for an orifice-compensated hole-entry configuration with uniform distribution of holes in the circumferential direction. The results show that the wear affects the bearing performance significantly and therefore, a due consideration of wear defect should be given for an accurate prediction of the bearing performance over a number of cycles.