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dc.contributor.authorAiraksinen, Tuomas
dc.contributor.authorHeikkola, Erkki
dc.date.accessioned2016-06-28T08:43:23Z
dc.date.available2016-06-28T08:43:23Z
dc.date.issued2010
dc.identifier.citationAiraksinen, T., & Heikkola, E. (2010). <i>Multiobjective muffler shape optimization with hybrid acoustics modelling</i>. University of Jyväskylä. Reports of the Department of Mathematical Information Technology / University of Jyväskylä. Series B, Scientific computing, 6/2010. <a href="http://users.jyu.fi/~tuma/home/files/sci/report_B6_10.pdf" target="_blank">http://users.jyu.fi/~tuma/home/files/sci/report_B6_10.pdf</a>
dc.identifier.isbn978-951-39-3935-9
dc.identifier.otherCONVID_19856450
dc.identifier.otherTUTKAID_41568
dc.identifier.otheroai:jykdok.linneanet.fi:1135657
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/50614
dc.description.abstractShape optimization of a duct system with respect to sound transmission loss is considered. The objective of optimization is to maximize the sound transmission loss at multiple frequency ranges simultaneously by adjusting the shape of a reactive muffler component. The noise reduction problem is formulated as a multiobjective optimization problem. The sound attenuation for each considered frequency is determined by a hybrid method, which requires solving Helmholtz equation numerically by finite element method. The optimization is performed using non-dominated sorting genetic algorithm, NSGA-II, which is a multi-objective genetic algorithm. The hybrid numerical method is flexible with respect to geometric shapes, material parameters and boundary conditions. Its combination with multiobjective optimization provides an efficient method to design muffler components.
dc.format.extent19
dc.language.isoeng
dc.publisherUniversity of Jyväskylä
dc.relation.ispartofseriesReports of the Department of Mathematical Information Technology / University of Jyväskylä. Series B, Scientific computing
dc.relation.urihttp://users.jyu.fi/~tuma/home/files/sci/report_B6_10.pdf
dc.subject.otheraaltoputki
dc.subject.othermuodonoptimointi
dc.subject.othergeneettinen algoritmi
dc.subject.otheräärellisten elementtien menetelmä
dc.subject.otherwaveguide
dc.subject.othershape optimization
dc.subject.othergenetic algorithm
dc.titleMultiobjective muffler shape optimization with hybrid acoustics modelling
dc.typeworkingPaper
dc.identifier.urnURN:NBN:fi:jyu-201606223322
dc.contributor.laitosTietotekniikan laitosfi
dc.contributor.laitosDepartment of Mathematical Information Technologyen
dc.type.urihttp://purl.org/eprint/type/Report
dc.date.updated2016-06-22T12:15:02Z
dc.type.coarworking paper
dc.description.reviewstatusnonPeerReviewed
dc.relation.issn1456-436X
dc.type.versionacceptedVersion
dc.rights.copyright© the Authors & University of Jyväskylä, 2010.
dc.rights.accesslevelopenAccessfi
dc.subject.ysoelementtimenetelmä
jyx.subject.urihttp://www.yso.fi/onto/yso/p24565


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