Results 101 to 110 of about 88,133 (255)

Influence of surface roughness and waviness on film thickness and pressure distribution in elastohydrodynamic contacts [PDF]

open access: yes
The Christensen theory of a stochastic model for hydrodynamic lubrication of rough surfaces was extended to elastohydrodynamic lubrication between two rollers.
Cheng, H. S., Chow, L. S. H.
core   +1 more source

Analysis of Two-Layered Journal Bearing Lubricated with Ferrofluid

open access: yesMATEC Web of Conferences, 2014
The present study investigates the load capacity and friction coefficient for a two-layered journal bearing lubricated with ferrofluid. A modified Reynolds equation for a two-layered ferrofluid is derived using displaced infinitely long wire magnetic ...
Rao T. V. V. L. N.   +3 more
doaj   +1 more source

Un modèle de lubrification en régime mixte du laminage : Frottement et lubrification en mise en forme = A mixed lubrication model of the cold strip rolling process

open access: yes, 2001
Free access articleInternational audienceLe régime de lubrification mixte est le plus fréquemment rencontré en laminage à froid. Sa modélisation est le but de cet article. La lubrification, phénomène interfacial, est fortement couplée à la mécanique de l'
Deneuville, Patrick   +3 more
core   +3 more sources

Effect of load and speed on warship power rear drive system helical gear anti-scuffing properties in thermal elasto-hydrodynamic lubrication

open access: yesAdvances in Mechanical Engineering, 2016
The key parameters which caused the scoring failure of helical gears are operating load and speed. In this study, the simulations using geometric meshing theory were carried out to investigate the effect of load and speed of warship transmission helical ...
Yongmei Wang   +5 more
doaj   +1 more source

CYLINDRICAL ROLLER BEARING LUBRICATION REGIMES ANALYSIS AT LOW SPEED AND PURE RADIAL LOAD

open access: yesActa Polytechnica, 2019
In this article, we describe a method of the roller bearing lubrication regime prediction. It uses a mathematical model of the bearing based on the standard ISO/TS 16281 to obtain the external load distribution over the rolling elements.
Jakub Chmelař   +3 more
doaj   +1 more source

Measurement of cavitation in a sliding bearing using digital holography [PDF]

open access: yes, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014)   +3 more
core  

Study on mixed lubrication characteristics of piston/cylinder interface of variable length

open access: yesAIP Advances, 2019
Aiming at the lubrication problem of piston/cylinder interface of variable length, a two-dimensional mixed lubrication model was established. This model considers the adaptive eccentricity and the force balance of the piston.
Shiqing Sun, Na Sun, Xiaoli Wang
doaj   +1 more source

Transient elastohydrodynamic lubrication analysis of a novel metal-on-metal hip prosthesis with a non-spherical femoral bearing surface

open access: yes, 2011
Effective lubrication performance of metal-on-metal hip implants only requires optimum conformity within the main loaded area, while it is advantageous to increase the clearance in the equatorial region.
Anissian H.L.   +20 more
core   +1 more source

DYNAMIC REYNOLDS EQUATION FOR MICROPOLAR FLUID LUBRICATION OF POROUS SLIDER BEARINGS

open access: yesJournal of Marine Science and Technology, 2008
182 ABSTRACT In this paper an attempt has been made to study the rheological effects of micropolar fluid lubricants on the steady state and dynamic behavior of porous slider bearings by con- sidering the squeezing action. The general modified Rey- nolds-type equation of porous sliding-squeezing surfaces with micropolar fluids is derived for the ...
Neminath Bhujappa Naduvinamani   +1 more
openaire   +2 more sources

Isothermal elastohydrodynamic lubrication of point contacts. 1: Theoretical formulation [PDF]

open access: yes
The isothermal elastohydrodynamic lubrication (EHL) of a point contact was analyzed numerically by simultaneously solving the elasticity and Reynolds equations.
Dowson, D., Hamrock, B. J.
core   +1 more source

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