Shape optimisation of continuum structures via evolution strategies and fixed grid finite element analysis

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dc.citation.journalTitleStructural And Multidisciplinary Optimization
dc.contributor.authorGarcia, MJ
dc.contributor.authorGonzalez, CA
dc.contributor.researchgroupMecánica Aplicadaspa
dc.date.accessioned2021-04-16T20:10:38Z
dc.date.available2021-04-16T20:10:38Z
dc.date.issued2004-01-01
dc.description.abstractEvolution strategies (ES) are very robust and general techniques for finding global optima in optimisation problems. As with all evolutionary algorithms, ES apply evolutionary operators and select the most fit from a set of possible solutions. Unlike genetic algorithms, ES do not use binary coding of individuals, working instead with real variables. Many recent studies have applied evolutionary algorithms to structural problems, particularly the optimisation of trusses. This paper focuses on shape optimisation of continuum structures via ES. Stress analysis is accomplished by using the fixed grid finite element method, which reduces the computing time while keeping track of the boundary representation of the structure. This boundary is represented by b-spline functions, circles, and polylines, whose control points constitute the parameters that govern the shape of the structure. Evolutionary operations are applied to each set of variables until a global optimum is reached. Several numerical examples are presented to illustrate the performance of the method. Finally, structures with multiple load cases are considered along with examples illustrating the results obtained.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=2073
dc.identifier.doi10.1007/s00158-003-0323-6
dc.identifier.issn16151488
dc.identifier.issn0218396Xspa
dc.identifier.otherWOS;000188997800008
dc.identifier.otherSCOPUS;2-s2.0-1142288298
dc.identifier.urihttp://hdl.handle.net/10784/29181
dc.language.isoengeng
dc.publisherSPRINGER
dc.publisher.departmentUniversidad EAFIT. Departamento de Ingeniería Mecánicaspa
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-1142288298&doi=10.1007%2fs00158-003-0323-6&partnerID=40&md5=03a7a8ffc3b1eb08ac363d7c6c553cb7
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/1615-147X
dc.sourceStructural And Multidisciplinary Optimization
dc.subject.keywordBoundary element methodeng
dc.subject.keywordContinuum mechanicseng
dc.subject.keywordEvolutionary algorithmseng
dc.subject.keywordFinite element methodeng
dc.subject.keywordGenetic algorithmseng
dc.subject.keywordProblem solvingeng
dc.subject.keywordStress analysiseng
dc.subject.keywordStructural analysiseng
dc.subject.keywordTopologyeng
dc.subject.keywordEvolution strategieseng
dc.subject.keywordFixed grideng
dc.subject.keywordMultiload caseseng
dc.subject.keywordShape optimizationeng
dc.subject.keywordStructural optimizationeng
dc.titleShape optimisation of continuum structures via evolution strategies and fixed grid finite element analysiseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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