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RISEffect of Roughness Orientation on the Elastohydrodynamic Lubrication Film Thickness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effect of roughness orientation on lubricant film thickness has been an important issue of surface design, attracting much attention since the 1970 s. A systematical study, however, is still needed for various contact ...
On the Stribeck Curves for Lubricated Counterformal Contacts of Rough Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The “Stribeck curve†is a wellknown concept, describing the frictional behavior of a lubricated interface during the transition from boundary and mixed lubrication up to fullfilm hydrodynamic/elastohydrodynamic ...
Experimental and Numerical Investigations of the Stribeck Curves for Lubricated Counterformal Contacts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Stribeck curve is an important means to demonstrate the frictional behavior of a lubricated interface during the entire transition from boundary and mixed to full-film lubrication. In the present study, a new test ...
A New Singularity Treatment Approach for Journal Bearing Mixed Lubrication Modeled by the Finite Difference Method With a Herringbone Mesh
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steadystate mixed hydrodynamic lubrication of rigid journal bearing is investigated by using a finite difference form of the Patir–Cheng average Reynolds equation under the Reynolds boundary condition. Two sets of ...
Journal Bearing Surface Topography Design Based on Transient Lubrication Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transient mixed lubrication model is used to study the performance of a journal bearing subjected to impulse loading, considering mass conservation and the effects of asperities on flow and contact, to explore a novel ...
Housing Profile Design for Improved Apex Seal Lubrication Using a Finite Length Roller Elastohydrodynamic Lubrication Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Finite-length roller contacts are found in apex seal-housing interfaces in rotary engines, as well as in many other mechanical systems, such as those at the interfaces of meshing gear teeth, cam followers, and roller ...
Erratum: “Profile Design for Misaligned Journal Bearings Subjected to Transient Mixed Lubrication” [ASME J. Tribol., 2019, 141(7), p. 071701; DOI: 10.1115/1.4043506]
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the original publication, Fig. 5 is incorrect. The actual applied loads used for all the simulations can be found in the corrected figure below with a peak vertical load of 13.7 kN in magnitude.
Contact Yield Initiation and Its Influence on Rolling Contact Fatigue of Case-Hardened Steels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stress distributions and plastic deformation zones are factors directly influencing the fatigue life of components under cyclic contact. An effective approach to improving the resistance of a steel to contact fatigue failure ...
Maximum von Mises Stress and Its Location in Trilayer Materials in Contact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Trilayer materials consisting of a functional outer layer on a substrate containing one intermediate layer are widely used in dataprocessing devices, biomedical components, and mechanical elements. The recent analytical ...
A Thermal Elastohydrodynamic Lubrication Model for Crowned Rollers and Its Application on Apex Seal–Housing Interfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a thermal elastohydrodynamic lubrication (EHL) model for analyzing crowned roller lubrication performances under the influence of frictional heating. In this thermal EHL model, the Reynolds equation is ...