Mixed Lubrication in Hydrodynamic Bearings

Dominique Bonneau is Professor Emeritus specializing in the numerical modelization of lubrication problems who has worked as a teacher-researcher at the IUT of Angoulême and at the Institute PPRIME (Laboratory of Mechanics of Solids) of the University of Poitiers-CNRS-ENSMA in France.Aurelian Fatu is Professor and a researcher at the Institute PPRIME specializing in the modeling of problems of lubrication for engine bearings and for systems' sealing devices.Dominique Souchet specializes in the modeling of thermo-hydrodynamic lubrication of journal and thrust bearings with Newtonian or non-Newtonian fluids. He is a university lecturer and researcher at the Institute PPRIME.

• Preface ix Nomenclature xiChapter 1 Introduction 11.1 Lubrication regimes - Stribeck curve 11.2 Topography of rough surfaces 31.3 Bibliography 18Chapter 2 Computing the Hydrodynamic Pressure 192.1 Patir and Cheng stochastic model 202.2 Model based on a direct computation of the flow factors 342.3 Homogenization method 662.4 Comparison between the flow factors obtained with Patir and Cheng computation and homogenization models 872.5 Example of pressure profiles obtained from flow factors calculated with Patir and Cheng, direct computation and homogenization models 902.6 Comparison with deterministic computations 942.7 Bibliography 99Chapter 3 Computing the Contact Pressure 1033.1 Concept of sum surface 1043.2 Elastic contact model proposed by Greenwood and Williamson 1053.3 Elasto-plastic contact model proposed by Robbe-Valloire el al 1083.4 Elasto-plastic double-layer contact model proposed by Progri et al 1153.5 Model based discrete Fourier transformation 1193.6 Deterministic model based on finite elements 1243.7 Using the contact models 1283.8 Influence of the roughness deformation generated by the contact pressure on the flow factors 1493.9 Using the contact models in an industrial context 1513.10 Bibliography 153Chapter 4 Wear 1554.1 General concepts about wear 1564.2 Running-in 1634.3 Experimental determination of the Archard coefficient 1654.4 Numerical modeling of the wear 1684.5 Bibliography 182Index 183