A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures
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=S1679-78252017001202221 |
Resumo: | Abstract There are typically three broad categories of structural optimization namely size, shape and topology. Over the past few decades various researchers have focused on developing techniques for optimizing structures by considering either one or a combination of these aspects. In this paper the efficiency of these techniques are investigated in an effort to quantify the improvement of the result obtained by utilizing a more complex optimization routine. The percentage of the structural weight saved and computational effort required are used as measures to compare these techniques. The well-known genetic algorithm with elitism is used to perform these tests on various benchmark structures found in literature. Some of the results that are obtained include that a simultaneous approach produces, on average, a 22 % better solution than a simple size optimization and a 12 % improvement when compared to a staged approach where the size, shape and topology of the structure is considered sequentially. From these results, it is concluded that a significant saving can be made by using a more complex optimization routine, such as a simultaneous approach. |
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Latin American journal of solids and structures (Online) |
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A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss StructuresStructural optimizationGenetic algorithmsTruss structuresSizeShape and Topology optimization.Abstract There are typically three broad categories of structural optimization namely size, shape and topology. Over the past few decades various researchers have focused on developing techniques for optimizing structures by considering either one or a combination of these aspects. In this paper the efficiency of these techniques are investigated in an effort to quantify the improvement of the result obtained by utilizing a more complex optimization routine. The percentage of the structural weight saved and computational effort required are used as measures to compare these techniques. The well-known genetic algorithm with elitism is used to perform these tests on various benchmark structures found in literature. Some of the results that are obtained include that a simultaneous approach produces, on average, a 22 % better solution than a simple size optimization and a 12 % improvement when compared to a staged approach where the size, shape and topology of the structure is considered sequentially. From these results, it is concluded that a significant saving can be made by using a more complex optimization routine, such as a simultaneous approach.Associação Brasileira de Ciências Mecânicas2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001202221Latin American Journal of Solids and Structures v.14 n.12 2017reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78253900info:eu-repo/semantics/openAccessMüller,T.E.Klashorst,E. van dereng2018-01-24T00:00:00Zoai:scielo:S1679-78252017001202221Revistahttp://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:2018-01-24T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
title |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
spellingShingle |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures Müller,T.E. Structural optimization Genetic algorithms Truss structures Size Shape and Topology optimization. |
title_short |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
title_full |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
title_fullStr |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
title_full_unstemmed |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
title_sort |
A Quantitative Comparison Between Size, Shape, Topology and Simultaneous Optimization for Truss Structures |
author |
Müller,T.E. |
author_facet |
Müller,T.E. Klashorst,E. van der |
author_role |
author |
author2 |
Klashorst,E. van der |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Müller,T.E. Klashorst,E. van der |
dc.subject.por.fl_str_mv |
Structural optimization Genetic algorithms Truss structures Size Shape and Topology optimization. |
topic |
Structural optimization Genetic algorithms Truss structures Size Shape and Topology optimization. |
description |
Abstract There are typically three broad categories of structural optimization namely size, shape and topology. Over the past few decades various researchers have focused on developing techniques for optimizing structures by considering either one or a combination of these aspects. In this paper the efficiency of these techniques are investigated in an effort to quantify the improvement of the result obtained by utilizing a more complex optimization routine. The percentage of the structural weight saved and computational effort required are used as measures to compare these techniques. The well-known genetic algorithm with elitism is used to perform these tests on various benchmark structures found in literature. Some of the results that are obtained include that a simultaneous approach produces, on average, a 22 % better solution than a simple size optimization and a 12 % improvement when compared to a staged approach where the size, shape and topology of the structure is considered sequentially. From these results, it is concluded that a significant saving can be made by using a more complex optimization routine, such as a simultaneous approach. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 |
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=S1679-78252017001202221 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017001202221 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78253900 |
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.12 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_ |
1754302889263628288 |