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Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow

In this project, a line contact elastohydrodynamic lubrication is modelled through an infinite cylinder on a plane to represent the application of roller bearing. The numerical solution of this problem is presented embedded with free volume model of pressure-viscosity equation using Doolittle-Tait m...

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Main Author: Bahari, Adli
Format: Thesis
Language:English
Published: 2010
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/11055/1/AdliBahariMFKM2010.pdf
http://eprints.utm.my/id/eprint/11055/
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spelling my.utm.110552018-05-30T02:32:42Z http://eprints.utm.my/id/eprint/11055/ Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow Bahari, Adli TJ Mechanical engineering and machinery In this project, a line contact elastohydrodynamic lubrication is modelled through an infinite cylinder on a plane to represent the application of roller bearing. The numerical solution of this problem is presented embedded with free volume model of pressure-viscosity equation using Doolittle-Tait model. Newton-Raphson method is used to solve the Reynolds equation simultaneously with pressureviscosity equation and elastic deformation in order to find the pressure profile and film thickness. The behavior of non-Newtonian fluid also was investigated using power law fluid model. The bearing performances parameters such as pressure, film thickness and friction coefficient of lubricated contacts are calculated. Non-uniform grid also used to improve the pressure spike stability. The results show that the peak pressure increases as the parameters such as velocity, load, material parameter and power law index are increases and the spike is found to shift to the center of roller. The coefficient of friction is reduced as the power law index and slide to roll ratio are decreased. 2010-04 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/11055/1/AdliBahariMFKM2010.pdf Bahari, Adli (2010) Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow. Masters thesis, Universiti Teknologi Malaysia, Faculty of Mechanical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:70659?site_name=Restricted Repository
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Bahari, Adli
Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
description In this project, a line contact elastohydrodynamic lubrication is modelled through an infinite cylinder on a plane to represent the application of roller bearing. The numerical solution of this problem is presented embedded with free volume model of pressure-viscosity equation using Doolittle-Tait model. Newton-Raphson method is used to solve the Reynolds equation simultaneously with pressureviscosity equation and elastic deformation in order to find the pressure profile and film thickness. The behavior of non-Newtonian fluid also was investigated using power law fluid model. The bearing performances parameters such as pressure, film thickness and friction coefficient of lubricated contacts are calculated. Non-uniform grid also used to improve the pressure spike stability. The results show that the peak pressure increases as the parameters such as velocity, load, material parameter and power law index are increases and the spike is found to shift to the center of roller. The coefficient of friction is reduced as the power law index and slide to roll ratio are decreased.
format Thesis
author Bahari, Adli
author_facet Bahari, Adli
author_sort Bahari, Adli
title Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
title_short Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
title_full Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
title_fullStr Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
title_full_unstemmed Numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
title_sort numerical solution of elastohydrodynamic lubrication with non-newtonian fluid flow
publishDate 2010
url http://eprints.utm.my/id/eprint/11055/1/AdliBahariMFKM2010.pdf
http://eprints.utm.my/id/eprint/11055/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:70659?site_name=Restricted Repository
_version_ 1643645572366729216
score 13.211869

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