Hydrodynamic Analysis of Journal Bearings Considering Effects of Asymmetric Electric Double Layer and Anisotropic Slip

Abstract

In this research based on many previous studies on electric double layer and hydraulic lubrication this study hopes to derive an electric double layer model that is more applicable than the previous electric double layer model The electric double layer effect and the non-isotropic slip are added to the Reynolds equation and the modified Reynolds equation is derived to make it closer to the real working condition And considers the hydraulic lubrication performance of the journal bearing under the condition of electric double layer effect and non-isotropic slip As a result it was found that the flow path width the ion concentration and the potential level have a significant influence on the viscosity The three conditions need to cooperate with each other to find a better electro-viscosity effect to enhance the viscosity The electric viscosity has a significant effect on reducing the friction coefficient of the journal bearing But in this study the working clearance of the journal bearing needs to be in the nanometer level which will have a good contribution to the bearing capacity of the journal bearing

Date of Award	2019
Original language	English
Supervisor	Wang-Long Li (Supervisor)