Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.3288
DC FieldValueLanguage
dc.contributor.authorNitti, Alessandro-
dc.contributor.authorStender, Merten-
dc.contributor.authorHoffmann, Norbert-
dc.contributor.authorPapangelo, Antonio-
dc.date.accessioned2021-02-12T12:48:09Z-
dc.date.available2021-02-12T12:48:09Z-
dc.date.issued2021-01-11-
dc.identifier.citationNonlinear Dynamics 1 (103): 309-325 (2021-01-11)de_DE
dc.identifier.issn1573-269Xde_DE
dc.identifier.urihttp://hdl.handle.net/11420/8774-
dc.description.abstractThe current push toward lightweight structures in aerospace and aeronautical engineering is leading to slender design airfoils, which are more likely to undergo large deformation, hence experiencing geometrical nonlinearities. The problem of vibration localization in a rotor constituted by N coupled airfoils with plunge and pitch degrees of freedom subjected to flutter instability is considered. For a single airfoil, it is shown that depending on the system parameters, multiple static and dynamic equilibria coexist which may be a fixed point, a limit cycle, or irregular motion. By elastically coupling N airfoils, a simplified rotor model is obtained. The nonlinear dynamical response of the rotor is studied via time integration with particular attention to the emergence of localized vibrating solutions, which have been classified introducing a localization coefficient. Finally, the concept of basin stability is exploited to ascertain the likelihood of the system to converge to a certain localized state as a function of the airstream velocity. We found that homogeneous and slightly localized states are more likely to appear with respect to strongly localized states.en
dc.language.isoende_DE
dc.publisherSpringer Science + Business Media B.Vde_DE
dc.relation.ispartofNonlinear dynamicsde_DE
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de_DE
dc.subjectAirfoilde_DE
dc.subjectBasin stabilityde_DE
dc.subjectFlutterde_DE
dc.subjectGeometrical nonlinearityde_DE
dc.subjectLocalized vibrationsde_DE
dc.subject.ddc600: Technikde_DE
dc.titleSpatially localized vibrations in a rotor subjected to flutterde_DE
dc.typeArticlede_DE
dc.identifier.doi10.15480/882.3288-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0124932-
tuhh.oai.showtruede_DE
tuhh.abstract.englishThe current push toward lightweight structures in aerospace and aeronautical engineering is leading to slender design airfoils, which are more likely to undergo large deformation, hence experiencing geometrical nonlinearities. The problem of vibration localization in a rotor constituted by N coupled airfoils with plunge and pitch degrees of freedom subjected to flutter instability is considered. For a single airfoil, it is shown that depending on the system parameters, multiple static and dynamic equilibria coexist which may be a fixed point, a limit cycle, or irregular motion. By elastically coupling N airfoils, a simplified rotor model is obtained. The nonlinear dynamical response of the rotor is studied via time integration with particular attention to the emergence of localized vibrating solutions, which have been classified introducing a localization coefficient. Finally, the concept of basin stability is exploited to ascertain the likelihood of the system to converge to a certain localized state as a function of the airstream velocity. We found that homogeneous and slightly localized states are more likely to appear with respect to strongly localized states.de_DE
tuhh.publisher.doi10.1007/s11071-020-06171-8-
tuhh.publication.instituteStrukturdynamik M-14de_DE
tuhh.identifier.doi10.15480/882.3288-
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue1de_DE
tuhh.container.volume103de_DE
tuhh.container.startpage309de_DE
tuhh.container.endpage325de_DE
dc.rights.nationallicensefalsede_DE
dc.identifier.scopus2-s2.0-85099400989de_DE
local.status.inpressfalsede_DE
local.type.versionpublishedVersionde_DE
local.funding.infoOpen Access funding enabled and organized by Projekt DEAL. M.S. was supported by the German Research Foundation (DFG) within the Priority Program ’calm, smooth, smart’ under the reference Ho 3851/121. A.P. acknowledges the DFG (German Research Foundation) for funding the project PA 3303/1-1. A.P. acknowledges support from PON Ricerca e Innovazione 2014-2020-Azione I.2 - D.D. n. 407, 27/02/2018, bando AIM (Grant No. AIM1895471). A.P. acknowledges the support by the Italian Ministry of Education, University and Research under the Programme Department of Excellence Legge 232/2016 (Grant No. CUP-D94I18000260001).de_DE
item.fulltextWith Fulltext-
item.mappedtypeArticle-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.creatorGNDNitti, Alessandro-
item.creatorGNDStender, Merten-
item.creatorGNDHoffmann, Norbert-
item.creatorGNDPapangelo, Antonio-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.grantfulltextopen-
item.creatorOrcidNitti, Alessandro-
item.creatorOrcidStender, Merten-
item.creatorOrcidHoffmann, Norbert-
item.creatorOrcidPapangelo, Antonio-
crisitem.author.deptStrukturdynamik M-14-
crisitem.author.deptStrukturdynamik M-14-
crisitem.author.deptStrukturdynamik M-14-
crisitem.author.orcid0000-0002-0888-8206-
crisitem.author.orcid0000-0003-2074-3170-
crisitem.author.orcid0000-0002-0214-904X-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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