Research On Temperature Field Visualization And Thermal Deformation Of Thrust Bearing Runner

As the core components of large equipment such as the hydropower station and ship,thrust bearing plays an important role in the axial thrust of the unit.Therefore,it is necessary to study the thrust bearing to ensure that it can work normally in various complicated working environment.Usually thrust bearing are focused on the study of the thrust tile,but the research of the thrust plate rarely.For the deformation of the thrust plate also has an impact on the oil film when the thrust bearing movement.Therefore,this paper focuses on the theoretical calculation and experimental verification of the temperature field and thermal deformation produced by the thrust plate.Firstly,in this paper,the mathematical model of the elastohydrodynamic lubrication of thrust bearings is established.Based on the Reynolds equation,energy equation,oil film thickness equation,viscosity temperature equation,heat equation,with heat conduction equation and thermal deformation equation simultaneous solution,the oil film temperature distribution corresponding to the tile surface is obtained by the calculation of the lubrication calculation software.The visualization analysis of the temperature field of the thrust plate is carried out by the analysis of the characteristics of the axisymmetric distribution in ANSYS.Then,the temperature field and thermal deformation of the thrust plate with different rotational speed and specific pressure are analyzed and studied.The results show that the temperature field of the thrust plate is symmetrical in the stable condition,and the maximum temperature gradient at the lower surface of the mirror plate,and the radial temperature increases first and then decreases,the maximum temperature occurs near the outer surface of the mirror plate.The increase of the specific pressure and rotating speed of the thrust plate will cause the temperature of the thrust plate to rise,the change of the temperature of the thrust plate will affect the thermal deformation of the thrust plate,And the deformation increases with the increase of specific pressure and speed.Finally,the correctness of the calculated results is verified by experiments.