Influence of friction and asymmetric freeplay on the limit cycle oscillation in aeroelastic system: An extended Henon's technique to temporal integration

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorDuke Univ-
Autor(es): dc.creatorWayhs-Lopes, Larissa Drews [UNESP]-
Autor(es): dc.creatorDowell, Earl H.-
Autor(es): dc.creatorBueno, Douglas D. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:11:00Z-
Data de disponibilização: dc.date.available2022-02-22T00:11:00Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jfluidstructs.2020.103054-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196991-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196991-
Descrição: dc.descriptionNonlinear effects such as friction and freeplay on the control surfaces can affect aeroelastic dynamics during flight. In particular, these nonlinearities can induce limit cycle oscillations (LCO), changing the system stability, and because of this it is essential to employ computational methods to predict this type of motion during the aircraft development cycle. In this context, the present article presents a matrix notation for describing the Henon's method used to reduce errors when considering piecewise linear nonlinearities in the numerical integration process. In addition, a new coordinate system is used to write the aeroelastic system of equations. The proposal defines a displacement vector with generalized and physical variables to simplify the computational implementation of the Henon's technique. Additionally, the article discusses the influence of asymmetric freeplay and friction on the LCO of an airfoil with control surface. The results show that the extended Henon's technique provides more accurate LCO predictions, that friction can change the frequency and amplitude of these motions, and the asymmetry of freeplay is important to determine the LCO behavior. (C) 2020 Elsevier Ltd. All rights reserved.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSao Paulo State Univ, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionDuke Univ, Durham, NC USA-
Descrição: dc.descriptionSao Paulo State Univ, Dept Math, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Math, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionFAPESP: 18/23348-6-
Descrição: dc.descriptionFAPESP: 17/08008-1-
Descrição: dc.descriptionFAPESP: 18/25194-6-
Formato: dc.format18-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationJournal Of Fluids And Structures-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectAsymmetric freeplay-
Palavras-chave: dc.subjectFriction force-
Palavras-chave: dc.subjectLimit cycle oscillation-
Palavras-chave: dc.subjectExtended Henon's technique-
Palavras-chave: dc.subjectModified generalized coordinate system-
Título: dc.titleInfluence of friction and asymmetric freeplay on the limit cycle oscillation in aeroelastic system: An extended Henon's technique to temporal integration-
Tipo de arquivo: dc.typelivro digital-
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