Results 151 to 160 of about 1,888,493 (191)

Analysis of the thermal elastohydrodynamic lubrication of a finite line contact

Tribology International, 2002
A complete numerical solution for the thermal elastohydrodynamic lubrication (EHL) problem of a finite line contact between an infinite plane and an axially profiled cylindrical roller is obtained. The pressure profile and the film shape in the middle part of the roller are very different from those at the ends. However, the finite line contact results
Xiaoling Liu, Peiran Yang
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A Numerical Solution of the Thermal Elastohydrodynamic Lubrication in an Elliptical Contact

Journal of Lubrication Technology, 1982
A numerical solution for the calculation of thickness and temperature of film and traction coefficients between heavily loaded elliptical contact is developed. To start the calculation a Hertzian pressure distribution modified at the inlet and outlet regions is assumed and the surface deformations are calculated.
H. Bru¨ggemann, F. G. Kollmann
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Traction in Thermal Elastohydrodynamic Lubrication of Rough Surfaces

Journal of Tribology, 1992
This paper studies the traction behavior of elastohydrodynamically lubricated line contacts between two rough surfaces. The study uses a thermal micro-elastohydrodynamic-lubrication (micro-EHL) model and obtains traction coefficients for a wide range of operating conditions and for film parameters as small as 1.50.
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Thermal Elastohydrodynamic Lubrication of Rolling/Sliding Line Contacts

Journal of Tribology, 1992
The solution of thermal elastohydrodynamic lubrication of rolling/sliding line contacts has been obtained. The Newton-Raphson technique was used to solve the simultaneous system of Reynolds and elasticity equations. The energy equation with boundary conditions was solved by the finite-difference method.
R. Wolff, T. Nonaka, A. Kubo, K. Matsuo
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On the thermal elastohydrodynamic lubrication in opposite sliding circular contacts

Tribology International, 2001
Abstract Cases of elastohydrodynamic lubrication (EHL) point contacts running under opposite sliding conditions have been studied with consideration of the thermal effect for various loads and entrainment velocities. A thermal EHL solver has been developed and proven to be able to deal even with extreme cases under an infinite slide–roll ratio ...
F. Guo, P. Yang, P.L. Wong
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Thermal Elastohydrodynamic Lubrication of Line Contact Considering the Thermal Elastic Deformation

2020
By considering the radial thermal elastic deformation of line contact solid surface caused by lubricant temperature rise, a new numerical method is utilized to calculate the solution of thermal elastohydrodynamic lubrication (TEHL) in line contact.
Zunyou Lu, Yanjun Lu, Yongfang Zhang
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Thermal effects in elastohydrodynamic lubrication of line contacts using a non-Newtonian lubricant

Tribology International, 1991
Abstract A Reynolds' equation, using Winer's viscoplastic model to express the non-Newtonian fluid property, is derived for line-contact EHL problems. The numerical solutions are obtained to the incorporated Reynolds', elasticity, and energy equations for pressure, film thickness, and temperature distribution between two surfaces simultaneously ...
T.-R. Lin, J.-F. Lin
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Thermal Elastohydrodynamic Lubrication of Point Contacts Using a Newtonian/Generalized Newtonian Lubricant

Tribology Letters, 2008
The classical ElastoHydroDynamic (EHD) theory assumes a Newtonian lubricant and an isothermal operating regime. In reality, lubricating oils do not behave as perfect Newtonian fluids. Moreover, in most operating conditions of an engineering system, especially at high speeds, thermal effects are important and temperature can no longer be considered as ...
Habchi, W., Eyheramendy, D., Bair, S., Vergne, P., Morales-Espejel, G.   +4 more
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Size Effect on the Behavior of Thermal Elastohydrodynamic Lubrication of Roller Pairs

Journal of Tribology, 2012
In order to investigate the size effect on elastohydrodynamic lubrication (EHL) of roller pairs, complete numerical solutions for both the Newtonian fluid and the Eyring fluid thermal EHL problems of roller pairs under steady state conditions have been achieved.
Xiaoling Liu, Jinlei Cui, Peiran Yang
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Thermal elastohydrodynamic lubrication analysis of deep groove ball bearing

Industrial Lubrication and Tribology, 2018
Purpose The purpose of this study is to investigate the thermal elastohydrodynamic lubrication (TEHL) analysis of a deep groove ball bearing. Design/methodology/approach The TEHL model for the groove ball is first established, into which the elastic deformation is incorporated.
Xuefang Cui, Fanming Meng, Delong Kong, Zhitao Cheng   +3 more
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