Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters

Detalhes bibliográficos
Autor(a) principal: Lara-Molina,Fabian Andres
Data de Publicação: 2015
Outros Autores: Koroishi,Edson Hideki, Steffen Jr,Valder
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=S1679-78252015001001807
Resumo: Abstract The components of flexible rotors are subjected to uncertainties. The main sources of uncertainties include the variation of mechanical properties. This contribution aims at analyzing the dynamics of flexible rotors under uncertain parameters modeled as fuzzy and fuzzy random variables. The uncertainty analysis encompasses the modeling of uncertain parameters and the numerical simulation of the corresponding flexible rotor model by using an approach based on fuzzy dynamic analysis. The numerical simulation is accomplished by mapping the fuzzy parameters of the deterministic flexible rotor model. Thereby, the flexible rotor is modeled by using both the Fuzzy Finite Element Method and the Fuzzy Stochastic Finite Element Method. Numerical simulations illustrate the methodology conveyed in terms of orbits and frequency response functions subject to uncertain parameters.
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spelling Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parametersRoto dynamicsuncertainty analysisFuzzy-random analysisAbstract The components of flexible rotors are subjected to uncertainties. The main sources of uncertainties include the variation of mechanical properties. This contribution aims at analyzing the dynamics of flexible rotors under uncertain parameters modeled as fuzzy and fuzzy random variables. The uncertainty analysis encompasses the modeling of uncertain parameters and the numerical simulation of the corresponding flexible rotor model by using an approach based on fuzzy dynamic analysis. The numerical simulation is accomplished by mapping the fuzzy parameters of the deterministic flexible rotor model. Thereby, the flexible rotor is modeled by using both the Fuzzy Finite Element Method and the Fuzzy Stochastic Finite Element Method. Numerical simulations illustrate the methodology conveyed in terms of orbits and frequency response functions subject to uncertain parameters.Associação Brasileira de Ciências Mecânicas2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015001001807Latin American Journal of Solids and Structures v.12 n.10 2015reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78251466info:eu-repo/semantics/openAccessLara-Molina,Fabian AndresKoroishi,Edson HidekiSteffen Jr,Valdereng2015-11-19T00:00:00Zoai:scielo:S1679-78252015001001807Revistahttp://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:2015-11-19T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
title Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
spellingShingle Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
Lara-Molina,Fabian Andres
Roto dynamics
uncertainty analysis
Fuzzy-random analysis
title_short Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
title_full Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
title_fullStr Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
title_full_unstemmed Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
title_sort Uncertainty analysis of flexible rotors considering fuzzy parameters and fuzzy-random parameters
author Lara-Molina,Fabian Andres
author_facet Lara-Molina,Fabian Andres
Koroishi,Edson Hideki
Steffen Jr,Valder
author_role author
author2 Koroishi,Edson Hideki
Steffen Jr,Valder
author2_role author
author
dc.contributor.author.fl_str_mv Lara-Molina,Fabian Andres
Koroishi,Edson Hideki
Steffen Jr,Valder
dc.subject.por.fl_str_mv Roto dynamics
uncertainty analysis
Fuzzy-random analysis
topic Roto dynamics
uncertainty analysis
Fuzzy-random analysis
description Abstract The components of flexible rotors are subjected to uncertainties. The main sources of uncertainties include the variation of mechanical properties. This contribution aims at analyzing the dynamics of flexible rotors under uncertain parameters modeled as fuzzy and fuzzy random variables. The uncertainty analysis encompasses the modeling of uncertain parameters and the numerical simulation of the corresponding flexible rotor model by using an approach based on fuzzy dynamic analysis. The numerical simulation is accomplished by mapping the fuzzy parameters of the deterministic flexible rotor model. Thereby, the flexible rotor is modeled by using both the Fuzzy Finite Element Method and the Fuzzy Stochastic Finite Element Method. Numerical simulations illustrate the methodology conveyed in terms of orbits and frequency response functions subject to uncertain parameters.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-01
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=S1679-78252015001001807
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252015001001807
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1679-78251466
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.12 n.10 2015
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
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