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dc.contributor.author
 hal.structure.identifier
VERMOT DES ROCHES, Guillaume
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.contributor.author
 hal.structure.identifier
BALMES, Etienne
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.date.accessioned2014
dc.date.available2014
dc.date.issued2014
dc.date.submitted2014
dc.identifier.urihttp://hdl.handle.net/10985/8598
dc.description.abstractThe design of joints is seeing increased interest as one of the ways of controlling damping levels in lighter and more flexible aeronautic structures. Damping induced by joint dissipation has been studied for more than a decade, mostly experimentally due to the difficulty of simulating large structures with non-linearities. Experimentally fitted meta-models were thus used for damping estimation at design stage without a possible optimization. The aim of this paper is to demonstrate that damping estimation using local friction models is feasible and that it can be usable for design. The simulation methodology is based on an explicit Newmark time scheme with model reduction and numerical damping that can be compensated for the modes of interest. Practical simulation times counted in minutes are achieved for detailed models. The illustration on a lap-joint shows how simulations can be used to predict the amplitude dependence of modal damping, answer long standing questions such as “does the modeshape change?” or analyze the evolution of pressure fields during a cycle.
dc.language.isoen_US
dc.publisherKUL
dc.rightsPost-print
dc.titleUnderstanding friction induced damping in bolted assemblies through explicit transient simulation
dc.typdocCommunication avec acte
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Mécanique: Vibrations
ensam.audienceInternationale
ensam.conference.titleInternational Conference on Noise and Vibration Engineering
ensam.conference.date2014-09-15
ensam.countryBelgium
ensam.title.proceedingProceedings ISMA
ensam.pageID 360
hal.identifierhal-01066967
hal.version1
hal.statusaccept


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