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Parametric inverse impulse response based on reduced order modeling and randomized excitations

dc.rights.licenseopen
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorMONTAGUD, Santiago
dc.contributor.authorAGUADO, José Vicente
dc.contributor.authorCHINESTA, Francisco
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorJOYOT, Pierre
ORCID: 0000-0002-6608-7343
IDREF: 085496057
dc.date.accessioned2020-09-03T10:06:47Z
dc.date.available2020-09-03T10:06:47Z
dc.date.issued2020
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/11060
dc.description.abstractEnThis paper is concerned with the computation of the inverse impulse response of a parametrized structural dynamics problem using reduced-order modeling and randomized excitations. A two-stages approach is proposed, involving the solution of both direct and inverse problems. In the first stage, the parametrized structural dynamics problem is formulated in the frequency domain, and solved using a reduced-order modeling approach. As a result, the parametric transfer function of the structure is obtained, and then readily transformed into a parametric direct impulse response (DIR). In the second stage, the parametric inverse impulse response (IIR) is computed. We use randomized excitations to generate synthetic samples inexpensively from the parametric DIR. Based on these, the parametric IIR is computed by minimizing the mean square error between the estimate and the samples. Most importantly, we show that the randomized excitations can be generated by sampling the frequency domain only. Hence, the parametric domain does not need to be sampled, which makes the computation of the parametric IIR very efficient.
dc.language.isoen
dc.publisherELSEVIER
dc.subject.enInverse problem - Parametric solutions - Randomization - Reduced order modeling - Structural dynamics
dc.title.enParametric inverse impulse response based on reduced order modeling and randomized excitations
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ymssp.2019.106392
dc.subject.halSciences de l'ingénieur [physics]
dc.subject.halSciences de l'ingénieur: Matériaux
bordeaux.journalMechanical Systems and Signal Processing
bordeaux.page1-15
bordeaux.volume135
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Mechanical%20Systems%20and%20Signal%20Processing&rft.date=2020&rft.volume=135&rft.spage=1-15&rft.epage=1-15&rft.au=MONTAGUD,%20Santiago&AGUADO,%20Jos%C3%A9%20Vicente&CHINESTA,%20Francisco&JOYOT,%20Pierre&rft.genre=article


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