Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid

In this paper, a theoretical study to the effect of journal misalignment on the static characteristics of oil filled porous journal bearing when lubricated with couple stress fluid has been carried out. The analytical model used through this work is for a bearing with isotropic permeability. Con...

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Autor principal:	Lekaa' H. Abd Al-shaheed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2012
Materias:	Static Characteristics Self Lubricated Bearing Misaligned Bearing Uniform Permeability Coupled Stress Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/492b5c68cf00421eb8be55a1fa98a28c
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spelling	oai:doaj.org-article:492b5c68cf00421eb8be55a1fa98a28c2021-12-02T01:31:14ZEffect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid1818-11712312-0789https://doaj.org/article/492b5c68cf00421eb8be55a1fa98a28c2012-05-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/128https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 In this paper, a theoretical study to the effect of journal misalignment on the static characteristics of oil filled porous journal bearing when lubricated with couple stress fluid has been carried out. The analytical model used through this work is for a bearing with isotropic permeability. Considering isotropic permeability the Reynolds' equation for the oil film is modified to include a so – called filter term and the effect of fluid coupled stress. The pressure equation for the porous medium is obtained from Darcy's law and continuity equation. The equation which was used to evaluate the oil film thickness was modified to include the effect of possible misalignment in longitudinal and transverse directions. The governing equations with appropriate boundary conditions are numerically solved using a suitable numerical technique. A computer program has been prepared to solve the governing equations. The validity of the program has been tested by comparing the results obtained through this work with that published in available works. The comparison shows a good agreement between the results obtained through this work and that published by other workers. By comparing the behavior of aligned and misaligned bearing it was found that the journal center misalignment has a considerable effect on the performance parameters of the bearing which can not be neglected. Lekaa' H. Abd Al-shaheedAl-Khwarizmi College of Engineering – University of BaghdadarticleStatic CharacteristicsSelf Lubricated BearingMisaligned BearingUniform PermeabilityCoupled StressChemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 8, Iss 2 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Static Characteristics Self Lubricated Bearing Misaligned Bearing Uniform Permeability Coupled Stress Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Static Characteristics Self Lubricated Bearing Misaligned Bearing Uniform Permeability Coupled Stress Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Lekaa' H. Abd Al-shaheed Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
description	In this paper, a theoretical study to the effect of journal misalignment on the static characteristics of oil filled porous journal bearing when lubricated with couple stress fluid has been carried out. The analytical model used through this work is for a bearing with isotropic permeability. Considering isotropic permeability the Reynolds' equation for the oil film is modified to include a so – called filter term and the effect of fluid coupled stress. The pressure equation for the porous medium is obtained from Darcy's law and continuity equation. The equation which was used to evaluate the oil film thickness was modified to include the effect of possible misalignment in longitudinal and transverse directions. The governing equations with appropriate boundary conditions are numerically solved using a suitable numerical technique. A computer program has been prepared to solve the governing equations. The validity of the program has been tested by comparing the results obtained through this work with that published in available works. The comparison shows a good agreement between the results obtained through this work and that published by other workers. By comparing the behavior of aligned and misaligned bearing it was found that the journal center misalignment has a considerable effect on the performance parameters of the bearing which can not be neglected.
format	article
author	Lekaa' H. Abd Al-shaheed
author_facet	Lekaa' H. Abd Al-shaheed
author_sort	Lekaa' H. Abd Al-shaheed
title	Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
title_short	Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
title_full	Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
title_fullStr	Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
title_full_unstemmed	Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid
title_sort	effect of journal misalignment on the static characteristics of porous journal bearings lubricated with couple stress fluid
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2012
url	https://doaj.org/article/492b5c68cf00421eb8be55a1fa98a28c
work_keys_str_mv	AT lekaahabdalshaheed effectofjournalmisalignmentonthestaticcharacteristicsofporousjournalbearingslubricatedwithcouplestressfluid
_version_	1718403010042789888

Effect of Journal Misalignment on the Static Characteristics of Porous Journal Bearings Lubricated with Couple Stress Fluid

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