A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing

The influence of bearing elasticity and micropolar parameters of micropolar lubricant on the performance and stability margin of a smooth hole-entry hybrid journal bearing system compensated with capillary restrictor has been presented in this paper. Isothermal conditions are assumed for the operati...

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Autores principales:	Kamal Budheeja, Suresh Verma
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2018
Materias:	fem flexibility hole-entry hybrid journal bearing micropolar lubricant performance and stability 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/d93b6c9e45f84063a26b2341459be8d6
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spelling	oai:doaj.org-article:d93b6c9e45f84063a26b2341459be8d62021-11-05T09:19:22ZA Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing1881-219810.2474/trol.13.20https://doaj.org/article/d93b6c9e45f84063a26b2341459be8d62018-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/13/2/13_20/_pdf/-char/enhttps://doaj.org/toc/1881-2198The influence of bearing elasticity and micropolar parameters of micropolar lubricant on the performance and stability margin of a smooth hole-entry hybrid journal bearing system compensated with capillary restrictor has been presented in this paper. Isothermal conditions are assumed for the operation of journal bearing system. Finite element method is used to obtain the coupled solution of modified Reynold’s equation and three dimensional elasticity equations. Performance characteristics are calculated in terms of minimum fluid film thickness, maximum fluid film pressure, attitude angle, critical journal mass, threshold speed and frequency of whirl for various values of design parameters like external load, restrictor design parameter, coefficient of deformation and micropolar parameters of the micropolar lubricant. The results presented in this study may be quite useful in the selection of the appropriate combination of the restrictor design parameter and elasticity of bearing so as to ensure the design of a stable bearing operating with micropolar lubricant. There exist an optimum value of restrictor design parameter (CS2) where the performance characteristics and stability margin are maximum for rigid as well as flexible bearing operating with Newtonian and micropolar lubricants.Kamal BudheejaSuresh VermaJapanese Society of Tribologistsarticlefemflexibilityhole-entryhybrid journal bearingmicropolar lubricantperformance and stabilityPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 13, Iss 2, Pp 20-35 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	fem flexibility hole-entry hybrid journal bearing micropolar lubricant performance and stability Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	fem flexibility hole-entry hybrid journal bearing micropolar lubricant performance and stability Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Kamal Budheeja Suresh Verma A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
description	The influence of bearing elasticity and micropolar parameters of micropolar lubricant on the performance and stability margin of a smooth hole-entry hybrid journal bearing system compensated with capillary restrictor has been presented in this paper. Isothermal conditions are assumed for the operation of journal bearing system. Finite element method is used to obtain the coupled solution of modified Reynold’s equation and three dimensional elasticity equations. Performance characteristics are calculated in terms of minimum fluid film thickness, maximum fluid film pressure, attitude angle, critical journal mass, threshold speed and frequency of whirl for various values of design parameters like external load, restrictor design parameter, coefficient of deformation and micropolar parameters of the micropolar lubricant. The results presented in this study may be quite useful in the selection of the appropriate combination of the restrictor design parameter and elasticity of bearing so as to ensure the design of a stable bearing operating with micropolar lubricant. There exist an optimum value of restrictor design parameter (CS2) where the performance characteristics and stability margin are maximum for rigid as well as flexible bearing operating with Newtonian and micropolar lubricants.
format	article
author	Kamal Budheeja Suresh Verma
author_facet	Kamal Budheeja Suresh Verma
author_sort	Kamal Budheeja
title	A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
title_short	A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
title_full	A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
title_fullStr	A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
title_full_unstemmed	A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing
title_sort	study on the influence of combined elastic and micropolar effects on hole-entry hybrid journal bearing
publisher	Japanese Society of Tribologists
publishDate	2018
url	https://doaj.org/article/d93b6c9e45f84063a26b2341459be8d6
work_keys_str_mv	AT kamalbudheeja astudyontheinfluenceofcombinedelasticandmicropolareffectsonholeentryhybridjournalbearing AT sureshverma astudyontheinfluenceofcombinedelasticandmicropolareffectsonholeentryhybridjournalbearing AT kamalbudheeja studyontheinfluenceofcombinedelasticandmicropolareffectsonholeentryhybridjournalbearing AT sureshverma studyontheinfluenceofcombinedelasticandmicropolareffectsonholeentryhybridjournalbearing
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A Study on the Influence of Combined Elastic and Micropolar Effects on Hole-Entry Hybrid Journal Bearing

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