Aeroelastic analysis and characterization of three-degree-of-freedom systems with discontinuous nonlinearity

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorNew Mexico State Univ-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorStevens Inst Technol-
Autor(es): dc.creatorVasconcellos, R.-
Autor(es): dc.creatorBouma, A.-
Autor(es): dc.creatorMarques, F.-
Autor(es): dc.creatorAbdelkefi, A.-
Autor(es): dc.creatorHajj, M. R.-
Autor(es): dc.creatorAIAA-
Data de aceite: dc.date.accessioned2025-08-21T22:47:51Z-
Data de disponibilização: dc.date.available2025-08-21T22:47:51Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302556-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302556-
Descrição: dc.descriptionThe effects of freeplay, multi-segmented, and impact nonlinearities in the pitch and control surface degree of freedoms on the behavior of a three-degree of freedom aeroelastic system are investigated. The aeroelastic system consists of a plunging and pitching rigid airfoil supported by a linear spring in the plunge degree of freedom, a nonlinear torsional spring in the pitch degree of freedom and a control surface with a nonlinear spring in the trailing edge. The unsteady representation based on the Duhamel formulation is used to model the aerodynamic loads. Using modern methods of nonlinear dynamics, a nonlinear characterization is performed to identify the system's response. Observations of this study show that grazing/sliding behavior are present as well as nonlinear coupling between the frequencies of the system, leading to a complex behavior, sudden transitions between harmonic and chaotic responses as freestream velocity is increased. These discontinuous characteristics can lead to the occurrence of sudden amplitude variations and broadband oscillatory behavior that can result in catastrophic structural failures in aeroelastic systems.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSao Paulo State Univ UNESP, BR-13876750 Sao Joao Da Boa Vista, SP, Brazil-
Descrição: dc.descriptionNew Mexico State Univ, Dept Mech & Aerosp Engn, Las Cruces, NM 88003 USA-
Descrição: dc.descriptionUniv Sao Paulo, BR-13876750 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionStevens Inst Technol, Dept Civil Environm & Ocean Engn, Hoboken, NJ 07030 USA-
Descrição: dc.descriptionSao Paulo State Univ UNESP, BR-13876750 Sao Joao Da Boa Vista, SP, Brazil-
Descrição: dc.descriptionCAPES: 88881.302889/2018-01-
Descrição: dc.descriptionCNPq: 311082/2016-5-
Formato: dc.format8-
Idioma: dc.languageen-
Publicador: dc.publisherAmer Inst Aeronautics & Astronautics-
Relação: dc.relationAiaa Aviation 2020 Forum-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleAeroelastic analysis and characterization of three-degree-of-freedom systems with discontinuous nonlinearity-
Tipo de arquivo: dc.typeaula digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.