Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000100001 |
Resumo: | Abstract In the present paper, a simplified homogenized beam theory is used in the context of a numerical investigation regarding the dynamic behavior of a rotating composite hollow shaft. For this aim, a horizontal flexible composite shaft and a rigid disc form the considered simple supported rotating system. The mathematical model of the rotor is derived from the Lagrange’s equation and the Rayleigh-Ritz method, which is obtained from the strain and kinetic energies of the disc and shaft, and the mass unbalance. In this case, a convergence procedure is carried out in terms of the vibration modes to obtain a representative model for the rotor system. Therefore, the proposed analysis is performed in both frequency and time domains, in which the frequency response functions, the unbalance responses, the Campbell diagram, and the orbits are numerically determined. Additionally, the instability threshold of the rotor system is obtained. This study illustrates the convenience of the composite hollow shafts for rotor dynamics applications. |
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Latin American journal of solids and structures (Online) |
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|
spelling |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow ShaftRotor dynamicscomposite hollow shaftRayleigh-Ritz methodnumerical investigationAbstract In the present paper, a simplified homogenized beam theory is used in the context of a numerical investigation regarding the dynamic behavior of a rotating composite hollow shaft. For this aim, a horizontal flexible composite shaft and a rigid disc form the considered simple supported rotating system. The mathematical model of the rotor is derived from the Lagrange’s equation and the Rayleigh-Ritz method, which is obtained from the strain and kinetic energies of the disc and shaft, and the mass unbalance. In this case, a convergence procedure is carried out in terms of the vibration modes to obtain a representative model for the rotor system. Therefore, the proposed analysis is performed in both frequency and time domains, in which the frequency response functions, the unbalance responses, the Campbell diagram, and the orbits are numerically determined. Additionally, the instability threshold of the rotor system is obtained. This study illustrates the convenience of the composite hollow shafts for rotor dynamics applications.Associação Brasileira de Ciências Mecânicas2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000100001Latin American Journal of Solids and Structures v.14 n.1 2017reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78253168info:eu-repo/semantics/openAccessCavalini Jr,Aldemir ApGuimarães,Thiago A MSilva,Bruno R M G daSteffen Jr,Valdereng2017-03-31T00:00:00Zoai:scielo:S1679-78252017000100001Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2017-03-31T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
title |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
spellingShingle |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft Cavalini Jr,Aldemir Ap Rotor dynamics composite hollow shaft Rayleigh-Ritz method numerical investigation |
title_short |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
title_full |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
title_fullStr |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
title_full_unstemmed |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
title_sort |
Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft |
author |
Cavalini Jr,Aldemir Ap |
author_facet |
Cavalini Jr,Aldemir Ap Guimarães,Thiago A M Silva,Bruno R M G da Steffen Jr,Valder |
author_role |
author |
author2 |
Guimarães,Thiago A M Silva,Bruno R M G da Steffen Jr,Valder |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Cavalini Jr,Aldemir Ap Guimarães,Thiago A M Silva,Bruno R M G da Steffen Jr,Valder |
dc.subject.por.fl_str_mv |
Rotor dynamics composite hollow shaft Rayleigh-Ritz method numerical investigation |
topic |
Rotor dynamics composite hollow shaft Rayleigh-Ritz method numerical investigation |
description |
Abstract In the present paper, a simplified homogenized beam theory is used in the context of a numerical investigation regarding the dynamic behavior of a rotating composite hollow shaft. For this aim, a horizontal flexible composite shaft and a rigid disc form the considered simple supported rotating system. The mathematical model of the rotor is derived from the Lagrange’s equation and the Rayleigh-Ritz method, which is obtained from the strain and kinetic energies of the disc and shaft, and the mass unbalance. In this case, a convergence procedure is carried out in terms of the vibration modes to obtain a representative model for the rotor system. Therefore, the proposed analysis is performed in both frequency and time domains, in which the frequency response functions, the unbalance responses, the Campbell diagram, and the orbits are numerically determined. Additionally, the instability threshold of the rotor system is obtained. This study illustrates the convenience of the composite hollow shafts for rotor dynamics applications. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000100001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000100001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78253168 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.14 n.1 2017 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302888834760704 |