Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method

Autores
Merelli, Claudio Ernesto; Barilá, Daniel Oscar; Vignolo, Gustavo Gabriel; Quinzani, Lidia Maria
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and the eccentricity ratio, η. In a previous work, we presented a regular perturbation method that extended the Ocvirk solution and successfully described isothermal JBs up to L/D and η of ∼1/2. Presently, we extend that methodology, modified using a smaller perturbation parameter, to obtain analytical expressions of the dynamic coefficients, as well as static variables like friction factor, load carrying capacity, lubricant flow rate and phase angle. The deduced expressions successfully describe the static and dynamic behavior of JBs up to L/D and η of ∼3/4.
Fil: Merelli, Claudio Ernesto. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Barilá, Daniel Oscar. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Vignolo, Gustavo Gabriel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
Materia
DYNAMIC COEFFICIENTS
JOURNAL BEARING
PERTURBATION METHOD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/97851
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/97851
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation MethodMerelli, Claudio ErnestoBarilá, Daniel OscarVignolo, Gustavo GabrielQuinzani, Lidia MariaDYNAMIC COEFFICIENTSJOURNAL BEARINGPERTURBATION METHODhttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and the eccentricity ratio, η. In a previous work, we presented a regular perturbation method that extended the Ocvirk solution and successfully described isothermal JBs up to L/D and η of ∼1/2. Presently, we extend that methodology, modified using a smaller perturbation parameter, to obtain analytical expressions of the dynamic coefficients, as well as static variables like friction factor, load carrying capacity, lubricant flow rate and phase angle. The deduced expressions successfully describe the static and dynamic behavior of JBs up to L/D and η of ∼3/4.Fil: Merelli, Claudio Ernesto. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaFil: Barilá, Daniel Oscar. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Vignolo, Gustavo Gabriel. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaPergamon-Elsevier Science Ltd2019-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97851Merelli, Claudio Ernesto; Barilá, Daniel Oscar; Vignolo, Gustavo Gabriel; Quinzani, Lidia Maria; Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method; Pergamon-Elsevier Science Ltd; International Journal of Mechanical Sciences; 151; 2-2019; 251-2620020-7403CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0020740318318642info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijmecsci.2018.11.018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:49Zoai:ri.conicet.gov.ar:11336/97851instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:18:49.559CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
title Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
spellingShingle Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
Merelli, Claudio Ernesto
DYNAMIC COEFFICIENTS
JOURNAL BEARING
PERTURBATION METHOD
title_short Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
title_full Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
title_fullStr Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
title_full_unstemmed Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
title_sort Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method
dc.creator.none.fl_str_mv Merelli, Claudio Ernesto
Barilá, Daniel Oscar
Vignolo, Gustavo Gabriel
Quinzani, Lidia Maria
author Merelli, Claudio Ernesto
author_facet Merelli, Claudio Ernesto
Barilá, Daniel Oscar
Vignolo, Gustavo Gabriel
Quinzani, Lidia Maria
author_role author
author2 Barilá, Daniel Oscar
Vignolo, Gustavo Gabriel
Quinzani, Lidia Maria
author2_role author
author
author
dc.subject.none.fl_str_mv DYNAMIC COEFFICIENTS
JOURNAL BEARING
PERTURBATION METHOD
topic DYNAMIC COEFFICIENTS
JOURNAL BEARING
PERTURBATION METHOD
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and the eccentricity ratio, η. In a previous work, we presented a regular perturbation method that extended the Ocvirk solution and successfully described isothermal JBs up to L/D and η of ∼1/2. Presently, we extend that methodology, modified using a smaller perturbation parameter, to obtain analytical expressions of the dynamic coefficients, as well as static variables like friction factor, load carrying capacity, lubricant flow rate and phase angle. The deduced expressions successfully describe the static and dynamic behavior of JBs up to L/D and η of ∼3/4.
Fil: Merelli, Claudio Ernesto. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Barilá, Daniel Oscar. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Vignolo, Gustavo Gabriel. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Quinzani, Lidia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
description A set of simple expressions is deduced for static and dynamic parameters associated to hydrodynamic journal bearings (JB). The behavior of this system is governed by two dimensionless numbers, the aspect ratio, L/D, and the eccentricity ratio, η. In a previous work, we presented a regular perturbation method that extended the Ocvirk solution and successfully described isothermal JBs up to L/D and η of ∼1/2. Presently, we extend that methodology, modified using a smaller perturbation parameter, to obtain analytical expressions of the dynamic coefficients, as well as static variables like friction factor, load carrying capacity, lubricant flow rate and phase angle. The deduced expressions successfully describe the static and dynamic behavior of JBs up to L/D and η of ∼3/4.
publishDate 2019
dc.date.none.fl_str_mv 2019-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/97851
Merelli, Claudio Ernesto; Barilá, Daniel Oscar; Vignolo, Gustavo Gabriel; Quinzani, Lidia Maria; Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method; Pergamon-Elsevier Science Ltd; International Journal of Mechanical Sciences; 151; 2-2019; 251-262
0020-7403
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97851
identifier_str_mv Merelli, Claudio Ernesto; Barilá, Daniel Oscar; Vignolo, Gustavo Gabriel; Quinzani, Lidia Maria; Dynamic Coefficients of Finite Length Journal Bearing. Evaluation Using a Regular Perturbation Method; Pergamon-Elsevier Science Ltd; International Journal of Mechanical Sciences; 151; 2-2019; 251-262
0020-7403
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0020740318318642
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijmecsci.2018.11.018
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844614154085728256
score 13.070432

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