Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact

In the field of industrial tribology, elastohydrodynamic lubrication (EHL) is a comparatively recent area of research. It only became properly established in the early 1960s. EHL of rolling contact is mainly divided to two phases (soft and hard), depending on the elasticity modulus of the mate...

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Main Author:	Abdel Malik, Mohamed A. H.
Format:	Thesis
Language:	English English
Published:	1997
Subjects:	Hydrodynamics - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/10016/1/FK_1997_13__A.pdf
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id	my-upm-ir.10016
record_format	uketd_dc
spelling	my-upm-ir.100162011-02-28T07:31:51Z Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact 1997-03 Abdel Malik, Mohamed A. H. In the field of industrial tribology, elastohydrodynamic lubrication (EHL) is a comparatively recent area of research. It only became properly established in the early 1960s. EHL of rolling contact is mainly divided to two phases (soft and hard), depending on the elasticity modulus of the material in contact. Hard rolling which relates to materials of high modulus of elasticity e.g. metal, is the part of interesting the present study. The f1rst objective of the research is to study the elastohydrodynamic rolling line contact. lubr1cat1on problem of hard Second is to investigate the isothermal and thermal conditions for EHL in hard rolling system. The contact geometry of the rolling process was specified as a line contact. An in compressible fluid flows in to the system. Under both isothermal and thermal conditions, a Newton1an lubricant was descr1bed. Two different widely used lubricants were tested. First, is a mineral Naphthenic (TN22) and the second is asynthetic Cycloaliphatic (ST40). It is assumed that two rollers of equal radius are moving relatively with same speed on a plane of d1fferent velocity. Two coord1nate axe s were considered (x and y). The parameters and conditions of controlling the system of contact are theoretically selected to match the practical field situations. Newton-Raphson and the finite difference methods were represented in the mathematical technique used for computations. Hydrodynamics - Case studies 1997-03 Thesis http://psasir.upm.edu.my/id/eprint/10016/ http://psasir.upm.edu.my/id/eprint/10016/1/FK_1997_13__A.pdf application/pdf en public masters Universiti Putra Malaysia Hydrodynamics - Case studies Faculty of Engineering English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Hydrodynamics - Case studies
spellingShingle	Hydrodynamics - Case studies Abdel Malik, Mohamed A. H. Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
description	In the field of industrial tribology, elastohydrodynamic lubrication (EHL) is a comparatively recent area of research. It only became properly established in the early 1960s. EHL of rolling contact is mainly divided to two phases (soft and hard), depending on the elasticity modulus of the material in contact. Hard rolling which relates to materials of high modulus of elasticity e.g. metal, is the part of interesting the present study. The f1rst objective of the research is to study the elastohydrodynamic rolling line contact. lubr1cat1on problem of hard Second is to investigate the isothermal and thermal conditions for EHL in hard rolling system. The contact geometry of the rolling process was specified as a line contact. An in compressible fluid flows in to the system. Under both isothermal and thermal conditions, a Newton1an lubricant was descr1bed. Two different widely used lubricants were tested. First, is a mineral Naphthenic (TN22) and the second is asynthetic Cycloaliphatic (ST40). It is assumed that two rollers of equal radius are moving relatively with same speed on a plane of d1fferent velocity. Two coord1nate axe s were considered (x and y). The parameters and conditions of controlling the system of contact are theoretically selected to match the practical field situations. Newton-Raphson and the finite difference methods were represented in the mathematical technique used for computations.
format	Thesis
qualification_level	Master's degree
author	Abdel Malik, Mohamed A. H.
author_facet	Abdel Malik, Mohamed A. H.
author_sort	Abdel Malik, Mohamed A. H.
title	Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
title_short	Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
title_full	Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
title_fullStr	Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
title_full_unstemmed	Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact
title_sort	isothermal and thermal analyses of elastohydrodynamic lubrication of hard rolling contact
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	1997
url	http://psasir.upm.edu.my/id/eprint/10016/1/FK_1997_13__A.pdf
_version_	1747811020671287296

Isothermal and Thermal Analyses of Elastohydrodynamic Lubrication of Hard Rolling Contact

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