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Multiobjective optimization solutions for noise reduction in composite sandwich panels using active control

2020-09-01Journal article Restricted access
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dc.contributor.authorAraújo, A. L.
dc.contributor.authorMadeira, JFA
dc.date.accessioned2020-10-14T15:58:35Z
dc.date.available2020-10-14T15:58:35Z
dc.date.issued2020-09-01
dc.description.abstractIn this paper, optimal solutions for noise reduction in laminated viscoelastic soft core sandwich plates are obtained, using active control with surface bonded piezoelectric sensors and actuators. An in–house finite element implementation of the active laminated sandwich plate is used to obtain the frequency response of the panels. Since the structural/acoustic problem is lightly coupled, the sound transmission characteristics of the panels are evaluated by computing their radiated sound power, using the Rayleigh integral method. A negative velocity feedback control law has been used to implement the active damping. The optimal location of the surface co-located pairs of piezoelectric patches is then obtained, using the Direct MultiSearch (DMS) optimization algorithm to minimize simultaneously the added weight, the number of controllers and noise radiation. The minimization of noise radiation is accomplished by minimizing the total length of the radiated sound power frequency response curve. Trade-off Pareto fronts and the respective optimal active patch configurations are obtained and discussed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationARAÚJO, A. L.; MADEIRA, J. F. A. – Multiobjective optimization solutions for noise reduction in composite sandwich panels using active control. Composite Structures. ISSN 0263-8223. Vol. 247 (2020), pp. 1-7pt_PT
dc.identifier.doi10.1016/j.compstruct.2020.112440pt_PT
dc.identifier.issn0263-8223
dc.identifier.urihttp://hdl.handle.net/10400.21/12285
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElseveirpt_PT
dc.relationUIDB/50022/2020 - FCT, through IDMEC, under LAETApt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0263822320301914?token=7D776341F7C7EC006E549BCA75691849E9E98B3D7FB76C47A8B129AB04FAC2C41C254A1DBA7B26B3AB01A6E73028B5C0pt_PT
dc.subjectSandwich structurespt_PT
dc.subjectPiezoelectricitypt_PT
dc.subjectViscoelasticitypt_PT
dc.subjectActive dampingpt_PT
dc.subjectMultiobjective optimizationpt_PT
dc.titleMultiobjective optimization solutions for noise reduction in composite sandwich panels using active controlpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage7pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleComposite Structurespt_PT
oaire.citation.volume247pt_PT
person.familyNameMadeira
person.givenNameJose Firmino Aguilar
person.identifier.ciencia-id6F1E-DCF0-D6EC
person.identifier.orcid0000-0001-9523-3808
person.identifier.ridN-6918-2016
person.identifier.scopus-author-id7003405549
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd495619a-a6ab-4ff5-8e70-3a1351f934dc
relation.isAuthorOfPublication.latestForDiscoveryd495619a-a6ab-4ff5-8e70-3a1351f934dc

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