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Vortex Induced Vibrations Analysis of a Cantilevered Blunt Plate by Proper Orthogonal Decomposition of TR-PIV and Structural Modal Analysis

hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorWATINE, Yann
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorGABILLET, Céline
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorASTOLFI, Jacques-André
hal.structure.identifierLaboratoire de Mécanique des Structures et des Systèmes Couplés [LMSSC]
hal.structure.identifierInstitut de Recherche de l'Ecole Navale [IRENAV]
dc.contributor.authorPERNOD, Laetitia
hal.structure.identifierLaboratoire de Mécanique des Structures et des Systèmes Couplés [LMSSC]
dc.contributor.authorLOSSOUARN, Boris
hal.structure.identifierLaboratoire de Mécanique des Structures et des Systèmes Couplés [LMSSC]
dc.contributor.authorDEÜ, Jean-François
dc.date.accessioned2021-05-14T09:30:11Z
dc.date.available2021-05-14T09:30:11Z
dc.date.issued2020
dc.date.conference2020-07-13
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/75791
dc.description.abstractEnThe present work focuses on the experimental characterization of the vortex shedding and on the induced vibrations of a cantilevered blunt rectangular aluminum plate of chord to thickness ratio 16, immersed in a uniform water flow in the hydrodynamic tunnel of the French Naval Academy Research Institute. Experiences have been conducted for Reynolds numbers Re (based on chord length) ranging from 2.5 × 105 to 10.5 × 105 at zero degrees incidence. Special attention has been paid to the interaction of the structural response and the flow dynamics at the twisting resonance. For this purpose, wake structures have been analyzed by Time Resolved Particle Image Velocimetry (TR-PIV) and the structural response of the plate has been examined by laser vibrometry. The von Karman vortex street has been characterized by statistical analysis and Proper Orthogonal Decomposition of PIV velocity fields and the structure is analyzed through modal analysis. The near-wake’s structure has been examined for three different Reynolds numbers: (i) at Re = 3.0 × 105, corresponding to vortex induced structural response at constant Strouhal number; (ii) at Re = 4.5 × 105, corresponding to mechanical resonance but dissociated vortex shedding and (iii) at Re = 5.4 × 105, corresponding to lock-in of the vortex shedding at the mechanical resonance. At Re = 4.5 × 105, at mechanical resonance, it reveals the occurrence of an energy transfer between the shear layer and the bubble wake vortex which cancels synchronization of the structural vibration with the von-Karman vortex street.
dc.language.isoen
dc.publisherAmerican Society of Mechanical Engineers
dc.title.enVortex Induced Vibrations Analysis of a Cantilevered Blunt Plate by Proper Orthogonal Decomposition of TR-PIV and Structural Modal Analysis
dc.typeCommunication dans un congrès avec actes
dc.identifier.doi10.1115/FEDSM2020-20226
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des structures [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Vibrations [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Energie électrique
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.countryUS
bordeaux.title.proceedingASME 2020 Fluids Engineering Division Summer Meeting, FEDSM 2020
bordeaux.conference.cityVirtual
bordeaux.peerReviewedoui
hal.identifierhal-03196687
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03196687v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2020&rft.au=WATINE,%20Yann&GABILLET,%20C%C3%A9line&ASTOLFI,%20Jacques-Andr%C3%A9&PERNOD,%20Laetitia&LOSSOUARN,%20Boris&rft.genre=proceeding


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