DefinePK

Abstract

Wide replacement of oil lubrication for marine journal bearing to seawater lubricated is to protect marine aquatic from rapid oil leak and intentionally oil waste pollution. The cause of bearing liner and propeller shaft wear and eroded are the low viscosity of seawater, marine growth, seawater flow and start up friction that disrupt the hydrodynamics film of lubricant. 3D journal bearing model has been developed with 10, 15, 20 grooves liner structural modification and inclusive of dimple instead of plain journal bearing. The Fluid Structure Interaction simulation shows that 20 grooves liner with dimples has the least deformation with von mises stress 717.37 Pa due to lubrication by dimples lubricant. The more grooves and dimples shows that more cooling effect by seawater flowing through the bearing by reducing the friction wear and increase the hydrodynamic pressure.