A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.15446/ing.investig.v40n2.79469 http://hdl.handle.net/11449/199365 |
Resumo: | Bearings are mechanical elements capable of transferring motion between two or more parts in a machine. When an external load is applied, the rolling elements and their rings tend to initiate a cyclical movement between themselves. Hence, they are linked by a variable type of contact, thus creating high surface stresses. As these elements are subjected to millions of cycles within their lifespan, these cyclical stresses may create cracks and cause failure by rolling contact fatigue (RCF). Due to the importance of this subject, it is vital to study the stress field caused by contact between the rolling parts in a bearing. This paper offers two approaches on the cyclical stresses in a deep-groove ball bearing: an analytical approach, using Hertz’s theory for contact stresses; and a numerical simulation, using the Finite Element Method (FEM) with the software Inventor and Nastran In-CAD. The results of both approaches were compared, and stress behavior was analyzed as the depth of the inner ring was increased. It was concluded that the surface stresses are greatly superior than the strength of the materials used in the bearings, and that the area influenced by these stresses are small when compared to the dimensions of the whole. |
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A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearingUn estudio del campo de tensión generado por el contacto entre una esfera y una placa plana para un modelo simplificado de rodamientos rígidos de bolasDeep-groove ball bearingFEM modelHertz contact stressSurface contactBearings are mechanical elements capable of transferring motion between two or more parts in a machine. When an external load is applied, the rolling elements and their rings tend to initiate a cyclical movement between themselves. Hence, they are linked by a variable type of contact, thus creating high surface stresses. As these elements are subjected to millions of cycles within their lifespan, these cyclical stresses may create cracks and cause failure by rolling contact fatigue (RCF). Due to the importance of this subject, it is vital to study the stress field caused by contact between the rolling parts in a bearing. This paper offers two approaches on the cyclical stresses in a deep-groove ball bearing: an analytical approach, using Hertz’s theory for contact stresses; and a numerical simulation, using the Finite Element Method (FEM) with the software Inventor and Nastran In-CAD. The results of both approaches were compared, and stress behavior was analyzed as the depth of the inner ring was increased. It was concluded that the surface stresses are greatly superior than the strength of the materials used in the bearings, and that the area influenced by these stresses are small when compared to the dimensions of the whole.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Mechanical Engineer Universidade Estadual Paulista (UNESP)Mechanical Engineering Universidade Estadual de Campinas (UNICAMP)Mechanical Engineer Universidade Estadual Paulista (UNESP)CAPES: 001Universidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Köhn, A. O. [UNESP]Silva, F. A.2020-12-12T01:37:51Z2020-12-12T01:37:51Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-6http://dx.doi.org/10.15446/ing.investig.v40n2.79469Ingenieria e Investigacion, v. 40, n. 2, p. 1-6, 2020.2248-87230120-5609http://hdl.handle.net/11449/19936510.15446/ing.investig.v40n2.794692-s2.0-85090589659Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIngenieria e Investigacioninfo:eu-repo/semantics/openAccess2021-10-22T17:02:14Zoai:repositorio.unesp.br:11449/199365Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:11:23.708992Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing Un estudio del campo de tensión generado por el contacto entre una esfera y una placa plana para un modelo simplificado de rodamientos rígidos de bolas |
title |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
spellingShingle |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing Köhn, A. O. [UNESP] Deep-groove ball bearing FEM model Hertz contact stress Surface contact |
title_short |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
title_full |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
title_fullStr |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
title_full_unstemmed |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
title_sort |
A study of the stress field generated by the contact between a sphere and a flat plate for a simplified model of deep-groove ball bearing |
author |
Köhn, A. O. [UNESP] |
author_facet |
Köhn, A. O. [UNESP] Silva, F. A. |
author_role |
author |
author2 |
Silva, F. A. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Köhn, A. O. [UNESP] Silva, F. A. |
dc.subject.por.fl_str_mv |
Deep-groove ball bearing FEM model Hertz contact stress Surface contact |
topic |
Deep-groove ball bearing FEM model Hertz contact stress Surface contact |
description |
Bearings are mechanical elements capable of transferring motion between two or more parts in a machine. When an external load is applied, the rolling elements and their rings tend to initiate a cyclical movement between themselves. Hence, they are linked by a variable type of contact, thus creating high surface stresses. As these elements are subjected to millions of cycles within their lifespan, these cyclical stresses may create cracks and cause failure by rolling contact fatigue (RCF). Due to the importance of this subject, it is vital to study the stress field caused by contact between the rolling parts in a bearing. This paper offers two approaches on the cyclical stresses in a deep-groove ball bearing: an analytical approach, using Hertz’s theory for contact stresses; and a numerical simulation, using the Finite Element Method (FEM) with the software Inventor and Nastran In-CAD. The results of both approaches were compared, and stress behavior was analyzed as the depth of the inner ring was increased. It was concluded that the surface stresses are greatly superior than the strength of the materials used in the bearings, and that the area influenced by these stresses are small when compared to the dimensions of the whole. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:37:51Z 2020-12-12T01:37:51Z 2020-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.15446/ing.investig.v40n2.79469 Ingenieria e Investigacion, v. 40, n. 2, p. 1-6, 2020. 2248-8723 0120-5609 http://hdl.handle.net/11449/199365 10.15446/ing.investig.v40n2.79469 2-s2.0-85090589659 |
url |
http://dx.doi.org/10.15446/ing.investig.v40n2.79469 http://hdl.handle.net/11449/199365 |
identifier_str_mv |
Ingenieria e Investigacion, v. 40, n. 2, p. 1-6, 2020. 2248-8723 0120-5609 10.15446/ing.investig.v40n2.79469 2-s2.0-85090589659 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ingenieria e Investigacion |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-6 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128329954361344 |