Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime

Surface texturing may have significant role in tribo-element applications operating at high speed. This paper theoretically investigates the influence of depth and location of cylindrical shaped dimples on static as well as dynamic performance characteristics of partial textured hydrodynamic journal...

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Autores principales:	RK Awasthi, Jagjit Singh Maan
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2021
Materias:	hydrodynamic lubrication turbulence partially textured bearing fem reynolds number 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/132f68a0020c4726b310b2bbb4556c9d
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spelling	oai:doaj.org-article:132f68a0020c4726b310b2bbb4556c9d2021-11-05T09:31:04ZInfluence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime1881-219810.2474/trol.16.99https://doaj.org/article/132f68a0020c4726b310b2bbb4556c9d2021-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/16/2/16_99/_pdf/-char/enhttps://doaj.org/toc/1881-2198Surface texturing may have significant role in tribo-element applications operating at high speed. This paper theoretically investigates the influence of depth and location of cylindrical shaped dimples on static as well as dynamic performance characteristics of partial textured hydrodynamic journal bearing vis-a-vis a smooth bearing working under turbulent regime. The non-dimensional Reynolds equation used for compressible flow is suitably modified for turbulent regime and Finite Element Method has been used to discretise the equation into linear algebraic equation. The governing equation satisfies mass-conservation throughout the solution domain. Eventually the results have been computed for three bearing configurations viz. smooth (untextured), partial textured with upstream and downstream zone respectively. The computed results reveal that the bearing surface if modified using texture at suitable location, enhances the performance of hydrodynamic bearing in terms of better load carrying capacity, low friction coefficient and enhanced stability. The study gives insight to the bearing designer.RK AwasthiJagjit Singh MaanJapanese Society of Tribologistsarticlehydrodynamic lubricationturbulencepartially textured bearingfemreynolds numberPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 16, Iss 2, Pp 99-112 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrodynamic lubrication turbulence partially textured bearing fem reynolds number Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	hydrodynamic lubrication turbulence partially textured bearing fem reynolds number Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 RK Awasthi Jagjit Singh Maan Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
description	Surface texturing may have significant role in tribo-element applications operating at high speed. This paper theoretically investigates the influence of depth and location of cylindrical shaped dimples on static as well as dynamic performance characteristics of partial textured hydrodynamic journal bearing vis-a-vis a smooth bearing working under turbulent regime. The non-dimensional Reynolds equation used for compressible flow is suitably modified for turbulent regime and Finite Element Method has been used to discretise the equation into linear algebraic equation. The governing equation satisfies mass-conservation throughout the solution domain. Eventually the results have been computed for three bearing configurations viz. smooth (untextured), partial textured with upstream and downstream zone respectively. The computed results reveal that the bearing surface if modified using texture at suitable location, enhances the performance of hydrodynamic bearing in terms of better load carrying capacity, low friction coefficient and enhanced stability. The study gives insight to the bearing designer.
format	article
author	RK Awasthi Jagjit Singh Maan
author_facet	RK Awasthi Jagjit Singh Maan
author_sort	RK Awasthi
title	Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
title_short	Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
title_full	Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
title_fullStr	Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
title_full_unstemmed	Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime
title_sort	influence of surface texture on the performance of hydrodynamic journal bearing operating under turbulent regime
publisher	Japanese Society of Tribologists
publishDate	2021
url	https://doaj.org/article/132f68a0020c4726b310b2bbb4556c9d
work_keys_str_mv	AT rkawasthi influenceofsurfacetextureontheperformanceofhydrodynamicjournalbearingoperatingunderturbulentregime AT jagjitsinghmaan influenceofsurfacetextureontheperformanceofhydrodynamicjournalbearingoperatingunderturbulentregime
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Influence of Surface Texture on the Performance of Hydrodynamic Journal Bearing Operating under Turbulent Regime

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