Numerical study of hydrodynamic herringbone-grooved journal bearings combined with thrust bearings considering thermal effects

Abstract Hydrodynamic herringbone-grooved journal bearings (HGJBs) are analyzed by solving Navier–Stokes and energy equations. It is well known that the load capacity of hydrodynamic may be affected high temperatures low oil viscosity. Therefore, main objective this study to understand pressure distribution HGJBs under different viscosity eccentricity ratios. In paper, 3 configurations studied, namely, a HGJB, combined HGJB thrust bearing, grooved bearing. The bearing characteristics, such as attitude angle vary with ratios, also discussed. results show decreases increasing temperature. difference increases ratio increases. high-pressure region concentrated at tip groove for HGJB. addition, can used stabilize because angle. These findings help facilitate design suitable working in warm hot environments future.