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A hybrid procedure to identify the optimal stiffness coefficients of elastically restrained beams

2015-06Journal article Restricted access
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dc.contributor.authorSilva, Tiago Alexandre Narciso da
dc.contributor.authorLoja, Amélia
dc.contributor.authorMaia, Nuno
dc.contributor.authorBarbosa, Joaquim
dc.date.accessioned2016-04-19T14:15:08Z
dc.date.available2016-04-19T14:15:08Z
dc.date.issued2015-06
dc.description.abstractThe formulation of a bending vibration problem of an elastically restrained Bernoulli-Euler beam carrying a finite number of concentrated elements along its length is presented. In this study, the authors exploit the application of the differential evolution optimization technique to identify the torsional stiffness properties of the elastic supports of a Bernoulli-Euler beam. This hybrid strategy allows the determination of the natural frequencies and mode shapes of continuous beams, taking into account the effect of attached concentrated masses and rotational inertias, followed by a reconciliation step between the theoretical model results and the experimental ones. The proposed optimal identification of the elastic support parameters is computationally demanding if the exact eigenproblem solving is considered. Hence, the use of a Gaussian process regression as a meta-model is addressed. An experimental application is used in order to assess the accuracy of the estimated parameters throughout the comparison of the experimentally obtained natural frequency, from impact tests, and the correspondent computed eigenfrequency.pt_PT
dc.identifier.citationSILVA, Tiago Alexandre Narciso da; [et al] - A hybrid procedure to identify the optimal stiffness coefficients of elastically restrained beams. International Journal of Applied Mathematics and Computer Science. ISSN 1641-876X. Vol. 25, N.º 2 (2015), pp. 245-257pt_PT
dc.identifier.doi10.1515/amcs-2015-0019Dpt_PT
dc.identifier.issn1641-876X
dc.identifier.urihttp://hdl.handle.net/10400.21/6038
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherUniversity of Zielona Gora Presspt_PT
dc.subjectTransverse vibrationpt_PT
dc.subjectBernoulli-Euler beampt_PT
dc.subjectElastic supportpt_PT
dc.subjectTorsional stiffness coefficientpt_PT
dc.subjectDifferential evolutionpt_PT
dc.subjectKriging predictorpt_PT
dc.titleA hybrid procedure to identify the optimal stiffness coefficients of elastically restrained beamspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage257pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage245pt_PT
oaire.citation.titleInternational Journal of Applied Mathematics and Computer Sciencept_PT
oaire.citation.volume25pt_PT
person.familyNameLoja
person.familyNameBarbosa
person.givenNameAmélia
person.givenNameJoaquim
person.identifier535461
person.identifier.ciencia-idA016-59D1-2D00
person.identifier.ciencia-id361B-9965-016F
person.identifier.orcid0000-0002-4452-5840
person.identifier.orcid0000-0002-8219-6435
person.identifier.ridI-7513-2015
person.identifier.ridL-5730-2013
person.identifier.scopus-author-id15741348500
person.identifier.scopus-author-id7202435183
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication9f43a546-1632-49c5-bd44-94aac2d7b648
relation.isAuthorOfPublicationa7598fac-8160-4003-ab71-5d28a11711dc
relation.isAuthorOfPublication.latestForDiscoverya7598fac-8160-4003-ab71-5d28a11711dc

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