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RISElastohydrodynamic Lubrication: A Gateway to Interfacial Mechanics—Review and Prospect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Elastohydrodynamic Lubrication (EHL) is commonly known as a mode of fluid-film lubrication in which the mechanism of hydrodynamic film formation is enhanced by surface elastic deformation and ...
Steady-State Hydrodynamic Lubrication Modeled With the Payvar-Salant Mass Conservation Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steady-state smooth surface hydrodynamic lubrications of a pocketed pad bearing, an angularly grooved thrust bearing, and a plain journal bearing are simulated with the mass-conservation model ...
Virtual Texturing: Modeling the Performance of Lubricated Contacts of Engineered Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Engineering practices and analyses have indicated that surface textures and topography may significantly affect the tribological performance of contact interfaces. Such an influence may be complicated ...
Pitting Life Prediction Based on a 3D Line Contact Mixed EHL Analysis and Subsurface von Mises Stress Calculation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Surface pitting due to contact fatigue is a major failure mode of many mechanical components, such as various gears and rolling-element bearings. Pitting life prediction, therefore, is vital to ...
A Numerical Static Friction Model for Spherical Contacts of Rough Surfaces, Influence of Load, Material, and Roughness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The relative motion between two surfaces under a normal load is impeded by friction. Interfacial junctions are formed between surfaces of asperities, and sliding inception occurs when shear ...
Effect of Stiff Coatings on EHL Film Thickness in Point Contacts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Coatings are widely used for interface performance enhancement and component life improvement, as well as for corrosion prevention and surface decoration. More and more mechanical components, ...
Thermomechanical Analysis of Elastoplastic Bodies in a Sliding Spherical Contact and the Effects of Sliding Speed, Heat Partition, and Thermal Softening
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A thermomechanical analysis of elasto-plastic bodies is a necessary step toward the understanding of tribological behaviors of machine components subjected to both mechanical loading and frictional ...
An Element-Free Galerkin-Finite Element Coupling Method for Elasto-Plastic Contact Problems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The element-free Galerkin-finite element (EFG-FE) coupling method, combined with the linear mathematical programming technique, is utilized to solve two-dimensional elasto-plastic contact problems. ...
Mixed Lubrication of Coupled Journal-Thrust-Bearing Systems Including Mass Conserving Cavitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mixed lubrication model is developed to investigate the lubrication of coupled journal-thrust-bearing systems. The governing equations are mapped into a computational domain with a conformal ...
The Pressure-Viscosity Coefficient for Newtonian EHL Film Thickness With General Piezoviscous Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There has been a long-standing need for a piezoviscous parameter αfilm that, together with the ambient viscosity μ0, will completely quantify the Newtonian rheology so that the film thickness ...