Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems

Detalhes bibliográficos
Autor(a) principal: dos Santos, L. G.P.
Data de Publicação: 2022
Outros Autores: Marques, F. D., Vasconcellos, R. M.G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s11071-021-07097-5
http://hdl.handle.net/11449/223205
Resumo: Stall flutter is turning into a more likely condition to be encountered as the demand for increasingly more flexible wings grows for HALE-like aircraft. Due to the various nonlinearities involved that can lead to complex motion, the characterization of the dynamical behavior in the post-flutter condition becomes important. The dynamics of a pitch–plunge idealized HALE typical section with aerodynamic, structural and kinematic nonlinearities in the stall flutter regime was investigated using an aeroelastic state-space formulation which includes a modified Beddoes-Leishman dynamic stall model. The results reveal that period-doubling was possible without stall, but chaos arose at discontinuity-induced bifurcations due to dynamic stall. A parametric study has been conducted to assess the influence of key parameters in the development of bifurcations and chaos.
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spelling Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systemsChaosDiscontinuity-induced bifurcationsDynamic stallHALEPiecewise-smooth systemsStall flutter is turning into a more likely condition to be encountered as the demand for increasingly more flexible wings grows for HALE-like aircraft. Due to the various nonlinearities involved that can lead to complex motion, the characterization of the dynamical behavior in the post-flutter condition becomes important. The dynamics of a pitch–plunge idealized HALE typical section with aerodynamic, structural and kinematic nonlinearities in the stall flutter regime was investigated using an aeroelastic state-space formulation which includes a modified Beddoes-Leishman dynamic stall model. The results reveal that period-doubling was possible without stall, but chaos arose at discontinuity-induced bifurcations due to dynamic stall. A parametric study has been conducted to assess the influence of key parameters in the development of bifurcations and chaos.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)University of São CarlosSão Paulo State UniversitySão Paulo State UniversityCNPq: 132154/2019-6FAPESP: 2017/02926-9CNPq: 306824/2019-1University of São CarlosUniversidade Estadual Paulista (UNESP)dos Santos, L. G.P.Marques, F. D.Vasconcellos, R. M.G. [UNESP]2022-04-28T19:49:21Z2022-04-28T19:49:21Z2022-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2053-2074http://dx.doi.org/10.1007/s11071-021-07097-5Nonlinear Dynamics, v. 107, n. 3, p. 2053-2074, 2022.1573-269X0924-090Xhttp://hdl.handle.net/11449/22320510.1007/s11071-021-07097-52-s2.0-85122513642Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNonlinear Dynamicsinfo:eu-repo/semantics/openAccess2022-04-28T19:49:21Zoai:repositorio.unesp.br:11449/223205Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:49:21Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
title Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
spellingShingle Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
dos Santos, L. G.P.
Chaos
Discontinuity-induced bifurcations
Dynamic stall
HALE
Piecewise-smooth systems
title_short Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
title_full Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
title_fullStr Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
title_full_unstemmed Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
title_sort Dynamical characterization of fully nonlinear, nonsmooth, stall fluttering airfoil systems
author dos Santos, L. G.P.
author_facet dos Santos, L. G.P.
Marques, F. D.
Vasconcellos, R. M.G. [UNESP]
author_role author
author2 Marques, F. D.
Vasconcellos, R. M.G. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv University of São Carlos
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv dos Santos, L. G.P.
Marques, F. D.
Vasconcellos, R. M.G. [UNESP]
dc.subject.por.fl_str_mv Chaos
Discontinuity-induced bifurcations
Dynamic stall
HALE
Piecewise-smooth systems
topic Chaos
Discontinuity-induced bifurcations
Dynamic stall
HALE
Piecewise-smooth systems
description Stall flutter is turning into a more likely condition to be encountered as the demand for increasingly more flexible wings grows for HALE-like aircraft. Due to the various nonlinearities involved that can lead to complex motion, the characterization of the dynamical behavior in the post-flutter condition becomes important. The dynamics of a pitch–plunge idealized HALE typical section with aerodynamic, structural and kinematic nonlinearities in the stall flutter regime was investigated using an aeroelastic state-space formulation which includes a modified Beddoes-Leishman dynamic stall model. The results reveal that period-doubling was possible without stall, but chaos arose at discontinuity-induced bifurcations due to dynamic stall. A parametric study has been conducted to assess the influence of key parameters in the development of bifurcations and chaos.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-28T19:49:21Z
2022-04-28T19:49:21Z
2022-02-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s11071-021-07097-5
Nonlinear Dynamics, v. 107, n. 3, p. 2053-2074, 2022.
1573-269X
0924-090X
http://hdl.handle.net/11449/223205
10.1007/s11071-021-07097-5
2-s2.0-85122513642
url http://dx.doi.org/10.1007/s11071-021-07097-5
http://hdl.handle.net/11449/223205
identifier_str_mv Nonlinear Dynamics, v. 107, n. 3, p. 2053-2074, 2022.
1573-269X
0924-090X
10.1007/s11071-021-07097-5
2-s2.0-85122513642
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nonlinear Dynamics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2053-2074
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1797789369484967936

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