Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings

Detalhes bibliográficos
Autor(a) principal: Ferreira,A. P. C. S.
Data de Publicação: 2010
Outros Autores: Faria,A. R. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782010000100010
Resumo: This work presents the optimization of a frame under uncertain loadings when two design criteria are taken simultaneously into account. The uncertainty relates to the applied loading and is inherent to the operation of structures since real structures are designed to sustain a large variety of load cases of practical relevance. The design criteria considered are two of the most important from a practical point of view: buckling load and natural frequency. The technique developed is based in convex modeling where a load space is defined and all the elements of that load space have equal probability of occurrence. The outcome of the technique is an optimal design for which one loading or several loadings of the load space are the most dangerous or harmful to the structure. On the other hand, it is guaranteed that all the other loadings contained in the load space are conservative in the sense that they are less harmful to the optimal design.
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spelling Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadingsmulticriteria optimizationbucklingfundamental frequencyminimax strategyuncertain loadingThis work presents the optimization of a frame under uncertain loadings when two design criteria are taken simultaneously into account. The uncertainty relates to the applied loading and is inherent to the operation of structures since real structures are designed to sustain a large variety of load cases of practical relevance. The design criteria considered are two of the most important from a practical point of view: buckling load and natural frequency. The technique developed is based in convex modeling where a load space is defined and all the elements of that load space have equal probability of occurrence. The outcome of the technique is an optimal design for which one loading or several loadings of the load space are the most dangerous or harmful to the structure. On the other hand, it is guaranteed that all the other loadings contained in the load space are conservative in the sense that they are less harmful to the optimal design.Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM2010-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782010000100010Journal of the Brazilian Society of Mechanical Sciences and Engineering v.32 n.1 2010reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/S1678-58782010000100010info:eu-repo/semantics/openAccessFerreira,A. P. C. S.Faria,A. R. deeng2010-07-12T00:00:00Zoai:scielo:S1678-58782010000100010Revistahttps://www.scielo.br/j/jbsmse/https://old.scielo.br/oai/scielo-oai.php||abcm@abcm.org.br1806-36911678-5878opendoar:2010-07-12T00:00Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false
dc.title.none.fl_str_mv Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
title Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
spellingShingle Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
Ferreira,A. P. C. S.
multicriteria optimization
buckling
fundamental frequency
minimax strategy
uncertain loading
title_short Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
title_full Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
title_fullStr Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
title_full_unstemmed Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
title_sort Simultaneous buckling and fundamental frequency optimization of frames under uncertain loadings
author Ferreira,A. P. C. S.
author_facet Ferreira,A. P. C. S.
Faria,A. R. de
author_role author
author2 Faria,A. R. de
author2_role author
dc.contributor.author.fl_str_mv Ferreira,A. P. C. S.
Faria,A. R. de
dc.subject.por.fl_str_mv multicriteria optimization
buckling
fundamental frequency
minimax strategy
uncertain loading
topic multicriteria optimization
buckling
fundamental frequency
minimax strategy
uncertain loading
description This work presents the optimization of a frame under uncertain loadings when two design criteria are taken simultaneously into account. The uncertainty relates to the applied loading and is inherent to the operation of structures since real structures are designed to sustain a large variety of load cases of practical relevance. The design criteria considered are two of the most important from a practical point of view: buckling load and natural frequency. The technique developed is based in convex modeling where a load space is defined and all the elements of that load space have equal probability of occurrence. The outcome of the technique is an optimal design for which one loading or several loadings of the load space are the most dangerous or harmful to the structure. On the other hand, it is guaranteed that all the other loadings contained in the load space are conservative in the sense that they are less harmful to the optimal design.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-01
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=S1678-58782010000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-58782010000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-58782010000100010
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 Engenharia e Ciências Mecânicas - ABCM
publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM
dc.source.none.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering v.32 n.1 2010
reponame:Journal of the Brazilian Society of Mechanical Sciences and Engineering (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 Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
collection Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online)
repository.name.fl_str_mv Journal of the Brazilian Society of Mechanical Sciences and Engineering (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)
repository.mail.fl_str_mv ||abcm@abcm.org.br
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