Performance Analysis of 3 Lobe Hydrodynamic Journal Bearing

Abstract — Hydrodynamic journal bearings are widely used due to their high load carrying capacity and good damping properties. The bearing carries higher loads which reduces film thickness and increase pressure of fluid film. The pressure distribution is important in both load capacity estimations and dynamic analysis. We can analyze the pressure of fluid film and total deformation of 3 Lobe hydrodynamic journal bearing by Fluid Structure Interaction technique. The CFD results were compared with experimental results and good agreement were found. It is observed that, pressure and load on bearing increases with increase in rotation speed of journal. This paper describes FSI technique with optimization