Comparison of conical hybrid journal bearing performances for varying speeds

This paper describes the bearing performances of orifice and constant flow valve (CFV) restrictor-compensated conical journal bearings for variations in operating speed. The analytical studies for different cone angle bearings using FEM are represented in terms of different bearing characteristics such as maximum pressure, minimum fluid film thickness, fluid flow, stiffness, damping, and so on. The Reynolds equation for lubricant at the mating surfaces is solved to obtain these characteristics for the operating speed parameter range Ω = 0.1–1.0. The study reveals that the CFV conical journal bearing shows more significant results as the speed progresses than the orifice compensation. This will help the designer design bearings by considering varying speeds.