A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant

The present study discusses the effect of micropolar parameters on the stability of symmetric hole-entry hybrid journal bearing system compensated with capillary restrictor. Finite element method has been used to solve the modified Reynolds equation for the flow of micropolar lubricant through the b...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Kamal Budheeja, Suresh Verma
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2017
Materias:	capillary micropolar lubricant hybrid journal bearing symmetric hole-entry finite element method stability linear nonlinear 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/b481829ff5cc411dbab04b0fadc38b3b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b481829ff5cc411dbab04b0fadc38b3b
record_format	dspace
spelling	oai:doaj.org-article:b481829ff5cc411dbab04b0fadc38b3b2021-11-05T09:19:53ZA Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant1881-219810.2474/trol.12.203https://doaj.org/article/b481829ff5cc411dbab04b0fadc38b3b2017-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/12/5/12_203/_pdf/-char/enhttps://doaj.org/toc/1881-2198The present study discusses the effect of micropolar parameters on the stability of symmetric hole-entry hybrid journal bearing system compensated with capillary restrictor. Finite element method has been used to solve the modified Reynolds equation for the flow of micropolar lubricant through the bearing. The linearized and nonlinear equations of motion are solved numerically using fourth order Runge-Kutta Method at each integration time step. Solution of these equations provides the locus of moving journal center and the journal trajectories are plotted with the help of a computer program. A Routh-Hurwitz stability criterion has been applied to calculate the critical mass of the journal to analyze the stability of journal. A comparative analysis for linear and nonlinear models considering Newtonian and micropolar lubricants has been done. The results obtained indicate that micropolar parameters affect the performance as well as the stability margin of the hybrid journal bearing system considerably and nonlinear analysis provides quick response as compared to linear one.Kamal BudheejaSuresh VermaJapanese Society of Tribologistsarticlecapillarymicropolar lubricanthybrid journal bearingsymmetrichole-entryfinite element methodstabilitylinearnonlinearPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 12, Iss 5, Pp 203-220 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	capillary micropolar lubricant hybrid journal bearing symmetric hole-entry finite element method stability linear nonlinear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	capillary micropolar lubricant hybrid journal bearing symmetric hole-entry finite element method stability linear nonlinear Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Kamal Budheeja Suresh Verma A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
description	The present study discusses the effect of micropolar parameters on the stability of symmetric hole-entry hybrid journal bearing system compensated with capillary restrictor. Finite element method has been used to solve the modified Reynolds equation for the flow of micropolar lubricant through the bearing. The linearized and nonlinear equations of motion are solved numerically using fourth order Runge-Kutta Method at each integration time step. Solution of these equations provides the locus of moving journal center and the journal trajectories are plotted with the help of a computer program. A Routh-Hurwitz stability criterion has been applied to calculate the critical mass of the journal to analyze the stability of journal. A comparative analysis for linear and nonlinear models considering Newtonian and micropolar lubricants has been done. The results obtained indicate that micropolar parameters affect the performance as well as the stability margin of the hybrid journal bearing system considerably and nonlinear analysis provides quick response as compared to linear one.
format	article
author	Kamal Budheeja Suresh Verma
author_facet	Kamal Budheeja Suresh Verma
author_sort	Kamal Budheeja
title	A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
title_short	A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
title_full	A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
title_fullStr	A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
title_full_unstemmed	A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant
title_sort	comparative linear and nonlinear stability analysis of hybrid journal bearing operating with micropolar lubricant
publisher	Japanese Society of Tribologists
publishDate	2017
url	https://doaj.org/article/b481829ff5cc411dbab04b0fadc38b3b
work_keys_str_mv	AT kamalbudheeja acomparativelinearandnonlinearstabilityanalysisofhybridjournalbearingoperatingwithmicropolarlubricant AT sureshverma acomparativelinearandnonlinearstabilityanalysisofhybridjournalbearingoperatingwithmicropolarlubricant AT kamalbudheeja comparativelinearandnonlinearstabilityanalysisofhybridjournalbearingoperatingwithmicropolarlubricant AT sureshverma comparativelinearandnonlinearstabilityanalysisofhybridjournalbearingoperatingwithmicropolarlubricant
_version_	1718444431469707264

A Comparative Linear and Nonlinear Stability Analysis of Hybrid Journal Bearing Operating with Micropolar Lubricant

Ejemplares similares