Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -

Under the same EHL contact conditions as in the traction experiments carried out by Wedeven et al., the authors performed a non-Newtonian thermal EHL analysis. In the present analysis, the lubricating oil was assumed to behave as a Maxwell fluid. Lubricating oil is the automotive traction oil with t...

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Autores principales:	Toshifumi Mawatari, Akira Nakajima, Hirotaka Matsumoto
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2008
Materias:	shear stress traction oil thermal ehl maxwell model inlet oil temperature slide-roll ratio Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/1f32f2fafa18463aadebacb3727588d9
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spelling	oai:doaj.org-article:1f32f2fafa18463aadebacb3727588d92021-11-05T09:28:53ZShear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -1881-219810.2474/trol.3.268https://doaj.org/article/1f32f2fafa18463aadebacb3727588d92008-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/3/5/3_5_268/_pdf/-char/enhttps://doaj.org/toc/1881-2198Under the same EHL contact conditions as in the traction experiments carried out by Wedeven et al., the authors performed a non-Newtonian thermal EHL analysis. In the present analysis, the lubricating oil was assumed to behave as a Maxwell fluid. Lubricating oil is the automotive traction oil with the viscosity grade of ISO VG32. Input parameters are maximum Hertzian pressure PH=1.5 GPa, entrainment velocity ue=10 m/s, slide-roll ratio ∑=0%&sim;4.0% and inlet oil temperature t0=313 K&sim;413 K. The Eyring stress, the elastic shear modulus and the limiting shear stress which are needed to calculate the shear stress components were obtained from reference traction curves. The traction coefficients obtained by the numerical analysis agreed well with the measured values in traction experiments. Furthermore, it was found that the shear stress distribution is affected not only by the inlet oil temperature but also by the rolling-sliding conditions.Toshifumi MawatariAkira NakajimaHirotaka MatsumotoJapanese Society of Tribologistsarticleshear stresstraction oilthermal ehlmaxwell modelinlet oil temperatureslide-roll ratioPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 3, Iss 5, Pp 268-273 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	shear stress traction oil thermal ehl maxwell model inlet oil temperature slide-roll ratio Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	shear stress traction oil thermal ehl maxwell model inlet oil temperature slide-roll ratio Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Toshifumi Mawatari Akira Nakajima Hirotaka Matsumoto Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
description	Under the same EHL contact conditions as in the traction experiments carried out by Wedeven et al., the authors performed a non-Newtonian thermal EHL analysis. In the present analysis, the lubricating oil was assumed to behave as a Maxwell fluid. Lubricating oil is the automotive traction oil with the viscosity grade of ISO VG32. Input parameters are maximum Hertzian pressure PH=1.5 GPa, entrainment velocity ue=10 m/s, slide-roll ratio ∑=0%&sim;4.0% and inlet oil temperature t0=313 K&sim;413 K. The Eyring stress, the elastic shear modulus and the limiting shear stress which are needed to calculate the shear stress components were obtained from reference traction curves. The traction coefficients obtained by the numerical analysis agreed well with the measured values in traction experiments. Furthermore, it was found that the shear stress distribution is affected not only by the inlet oil temperature but also by the rolling-sliding conditions.
format	article
author	Toshifumi Mawatari Akira Nakajima Hirotaka Matsumoto
author_facet	Toshifumi Mawatari Akira Nakajima Hirotaka Matsumoto
author_sort	Toshifumi Mawatari
title	Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
title_short	Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
title_full	Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
title_fullStr	Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
title_full_unstemmed	Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -
title_sort	shear stress analysis of ehl oil films based on thermal ehl theory - effect of inlet oil temperature -
publisher	Japanese Society of Tribologists
publishDate	2008
url	https://doaj.org/article/1f32f2fafa18463aadebacb3727588d9
work_keys_str_mv	AT toshifumimawatari shearstressanalysisofehloilfilmsbasedonthermalehltheoryeffectofinletoiltemperature AT akiranakajima shearstressanalysisofehloilfilmsbasedonthermalehltheoryeffectofinletoiltemperature AT hirotakamatsumoto shearstressanalysisofehloilfilmsbasedonthermalehltheoryeffectofinletoiltemperature
_version_	1718444335721086976

Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -

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