Fuzzy finite element model updating of the DLR AIRMOD test structure

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dc.contributor.authorHaddad Khodaparast, H
dc.contributor.authorGovers, Y
dc.contributor.authorDayyani, Iman
dc.contributor.authorAdhikari, S
dc.contributor.authorLink, M
dc.contributor.authorFriswell, M
dc.contributor.authorMottershead, J
dc.contributor.authorSienz, J
dc.date.accessioned2017-09-13T09:08:24Z
dc.date.available2017-09-13T09:08:24Z
dc.date.issued2017-08-12
dc.description.abstractThis article presents the application of finite-element fuzzy model updating to the DLR AIRMOD structure. The proposed approach is initially demonstrated on a simulated mass-spring system with three degrees of freedom. Considering the effect of the assembly process on variability measurements, modal tests were carried out for the repeatedly disassembled and reassembled DLR AIRMOD structure. The histograms of the measured data attributed to the uncertainty of the structural components in terms of mass and stiffness are utilised to obtain the membership functions of the chosen fuzzy outputs and to determine the updated membership functions of the uncertain input parameters represented by fuzzy variables. In this regard, a fuzzy parameter is introduced to represent a set of interval parameters through the membership function, and a meta model (kriging, in this work) is used to speed up the updating. The use of non-probabilistic models, i.e. interval and fuzzy models, for updating models with uncertainties is often more practical when the large quantities of test data that are necessary for probabilistic model updating are unavailable.en_UK
dc.identifier.citationHaddad Khodaparast H, Govers Y, Dayyani I, Adhikari S, Link M, Friswell MI, Mottershead JE, Sienz J, Fuzzy finite element model updating of the DLR AIRMOD test structure, Vol. 52, December 2017, pp. 512-526en_UK
dc.identifier.cris18370291
dc.identifier.issn0307-904X
dc.identifier.urihttp://dx.doi.org/10.1016/j.apm.2017.08.001
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12475
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectFuzzy variableen_UK
dc.subjectModel updatingen_UK
dc.subjectAIRMOD structureen_UK
dc.titleFuzzy finite element model updating of the DLR AIRMOD test structureen_UK
dc.typeArticleen_UK

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