Results 21 to 30 of about 306 (159)
A multiscale method for optimising surface topography in elastohydrodynamic lubrication (EHL) using metamodels [PDF]
Structural and Multidisciplinary Optimization, 2016 The frictional performance of a bearing is of significant interest in any mechanical system where there are lubricated surfaces under load and in relative motion. Surface topography plays a major role in determining the coefficient of friction for the bearing because the size of the fluid film and topography are of a comparable order.
De Boer, GN +5 more
openaire +4 more sources
Lubricants, 2022 Experimental results have confirmed that parallel rough surfaces can be separated by a full fluid film. However, such a lift-off effect is not expected by the traditional Reynolds theory.
Yuechang Wang +6 more
doaj +1 more source
Lubrication Science, Volume 33, Issue 5, Page 269-278, August 2021., 2021 Abstract Antifriction synergies between an ionic liquid (IL) and nanopowders as additives of an ester base oil were analysed at rolling conditions. For this aim, two nanodispersions based on hybrid combinations of hexagonal boron nitride nanoparticles (h‐BN) or graphene nanoplatelets (GnP) with tri(butyl) ethylphosphonium diethylphosphate ionic liquid ...
José M. Liñeira del Río +4 more
wiley +1 more source
Behaviors of a micro oil droplet in an EHL contact
Friction, 2016 Oil–air lubrication supplies lubricants in the form of droplets to elastohydrodynamic lubrication (EHL) contacts, such as those in high-speed spindle bearings.
Xinming Li +4 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2022 This paper describes rheological properties of hydrodynamic and elastohydrodynamic lubrication (EHL) film under various contact pressure conditions using the fluorescence measurement method.
Takefumi OTSU
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Remarks on Modeling the Oil Film Generation of Rod Seals
Lubricants, 2021 The oil film generation of a U-cup rod seal and the oil film thickness on the rod after outstroke were analyzed analytically, numerically, and experimentally. The analyzed sealing system consists of an unmodified, commercially available U-cup, a polished
Oliver Feuchtmüller +3 more
doaj +1 more source
An Analytical Approach for Predicting EHL Friction: Usefulness and Limitations
Lubricants, 2022 The article studies the friction coefficient in elastohydrodynamic lubrication (EHL) by means of analytically obtained equations for different contact geometries.
Javier Echávarri Otero +4 more
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EHL Oil Film Behavior of Thermo-Reversible Gel-Lubricants
Tribology Online, 2008 This study investigates about the characteristic of the thermo-reversible gel-lubricant (TR Gel-Lube) under elastohydrodynamic lubrication (EHL) conditions. TR Gel-Lube is the lubricant, which consists of base fluid and a gel agent.
Daisuke Tominaga +4 more
doaj +1 more source
Elastohydrodynamic Lubrication (EHL) of Piston Rings in the Internal Combustion Engine
Procedia Engineering, 2016 AbstractThe paper analyzes the numerical model of elastohydrodynamic lubrication (EHL) of piston rings in the cylinder liner of the internal combustion engine (ICE). Authors take into account reactions of the lubricating layer, the pressure force of the piston rings on the cylinder wall, forces of the gas pressure in the cylinder, the friction force ...
Asaulyak, A.A. +2 more
openaire +1 more source
Jixie chuandong, 2020 To study the elastohydrodynamic lubrication（EHL） characteristic of the roller enveloping hourglass worm drive， the line contact isothermal mathematical model is established based on the research of meshing theory of the roller enveloping hourglass worm ...
Taoran Zhang, Lingyu Li
doaj