Influence of wear on the performance of a multirecess conical hybrid journal bearing compensated with orifice restrictor

In the present work, an analytical study concerning the influence of wear on the performance of a four-pocket hybrid conical journal bearing compensated with an orifice restrictor has been presented. The Reynolds equation governing the flow of lubricant in the clearance space of bearing has been solved using FEM and the Newton Raphson method. The static and dynamic performance characteristics have been presented for the various values of external load, wear depth parameter and for the various values of semi-cone angle. The numerically simulated results suggest that, the performance of the conical bearing is greatly affected by the wear defect.

► Conical journal bearing support loads both in the axial and the radial direction. ► The Reynolds equation governing the flow of lubricant in the clearance space has been solved by FEM. ► The performance characteristics have been presented for the external load and wear depth parameter.► The simulated results suggest that, the performance of the conical bearing is affected by the wear.