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RISCentral and Minimum Elastohydrodynamic Film Thickness at High Contact Pressure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new optical technique has been developed which is able to obtain accurate film thickness profiles across elastohydrodynamic (EHD) contacts. This has been used in conjunction with a high ...
Mechanism of Action of Colloidal Solid Dispersions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the past there has been considerable interest in the possibility of using liquid lubricants containing dispersed, solid particles in the 1–50 micron size range to reduce friction and wear. ...
Application of Atomic Force Microscopy to the Study of Lubricant Additive Films
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Constant force mode atomic force microscopy is used to examine the films formed on steel surfaces by three different types of lubricant additive. Work on molybdenum dithiocarbamate friction ...
Elastohydrodynamic Film Collapse During Rapid Deceleration. Part I—Experimental Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a study of the behavior of elastohydrodynamic lubricated contacts subjected to rapid halting. Experiments have been carried out using ultrathin interferometry coupled to a ...
Elastohydrodynamic Film Collapse During Rapid Deceleration. Part II—Theoretical Analysis and Comparison of Theory and Experiment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a theoretical model for the behavior of elastohydrodynamic films subjected to transient speed conditions, based on Grubin’s analytical solution for elastohydrodynamic lubrication. ...
Viscosity Ratio Effect in the Emulsion Lubrication of Soft EHL Contact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Many foodstuffs and personal care products consist of two-phase systems which, during use, are rubbed between compliant biosurfaces to form thin lubricating films. It is important to understand ...
Oxidative Wear in Lubricated Contact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Lubricant antioxidant additives are known to reduce fretting wear. Wear tests have been carried out in association with chemical analyses of the test lubricant to elucidate the mechanism of ...
Lubrication of Rough Surfaces by a Boundary Film-Forming Viscosity Modifier Additive
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In previous work it was shown that some functionalized polymers used as viscosity index improvers are able to form thick boundary lubricating films. This behavior results from adsorption of the ...
EHD Film Thickness in Non-Steady State Contacts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a study of EHD film thickness in non-steady state contact conditions. A modification of ultrathin film interferometry is employed which is able to measure both central film ...
A Low Friction Bearing Based on Liquid Slip at the Wall
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In recent years it has been shown experimentally by a number of workers that simple, Newtonian liquids can slip against solid surfaces when the latter are both very smooth and lyophobic. It ...