A modal approach for designing controllers for active flutter suppression
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s40430-020-02754-z http://hdl.handle.net/11449/205668 |
Resumo: | Flutter is an important topic to be considered during an aircraft development mainly due to its potentially catastrophic behavior. Typically a new aerial vehicle can require the addition of mass and limitations on its flight envelope to be flutter free. As an alternative, active control technologies can be used employing actuators and sources of power, and there are different techniques for computing the actuator’s force. In general, many approaches depend on describing the aeroelastic system through the state-space representation in the time domain. However, the state-space dynamic matrix typically contains nonphysical eigenvalues due to the unsteady aerodynamic forces approximations. In this context, this article introduces an algebraic arrangement for designing a modal controller to suppress the flutter phenomenon. The approach considers the modal state-space realization combined with the linear quadratic regulator to compute a control gain. The gain is converted from the new modal domain to the physical, and the control force introduces an effect of incremental damping for all flight envelope, although the controller is designed particularly for the flutter speed. To demonstrate the approach, numerical simulations are carried out considering the three-degree-of-freedom airfoil. The results show that this technique allows stabilizing the system. |
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Repositório Institucional da UNESP |
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A modal approach for designing controllers for active flutter suppressionAeroelastic modal modelControl designFlutter suppressionTransformation similarityFlutter is an important topic to be considered during an aircraft development mainly due to its potentially catastrophic behavior. Typically a new aerial vehicle can require the addition of mass and limitations on its flight envelope to be flutter free. As an alternative, active control technologies can be used employing actuators and sources of power, and there are different techniques for computing the actuator’s force. In general, many approaches depend on describing the aeroelastic system through the state-space representation in the time domain. However, the state-space dynamic matrix typically contains nonphysical eigenvalues due to the unsteady aerodynamic forces approximations. In this context, this article introduces an algebraic arrangement for designing a modal controller to suppress the flutter phenomenon. The approach considers the modal state-space realization combined with the linear quadratic regulator to compute a control gain. The gain is converted from the new modal domain to the physical, and the control force introduces an effect of incremental damping for all flight envelope, although the controller is designed particularly for the flutter speed. To demonstrate the approach, numerical simulations are carried out considering the three-degree-of-freedom airfoil. The results show that this technique allows stabilizing the system.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Engineering of Ilha Solteira São Paulo State University (UNESP), Ilha SolteiraPratt School of Engineering Duke UniversitySchool of Engineering of Ilha Solteira São Paulo State University (UNESP), Ilha SolteiraFAPESP: 18/25194-6Universidade Estadual Paulista (Unesp)Duke UniversityBueno, Douglas D. [UNESP]Gonsalez Bueno, Camila G. [UNESP]Dowell, Earl H.2021-06-25T10:19:19Z2021-06-25T10:19:19Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s40430-020-02754-zJournal of the Brazilian Society of Mechanical Sciences and Engineering, v. 43, n. 1, 2021.1806-36911678-5878http://hdl.handle.net/11449/20566810.1007/s40430-020-02754-z2-s2.0-85098624958Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineeringinfo:eu-repo/semantics/openAccess2021-10-22T13:12:45Zoai:repositorio.unesp.br:11449/205668Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T13:12:45Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A modal approach for designing controllers for active flutter suppression |
title |
A modal approach for designing controllers for active flutter suppression |
spellingShingle |
A modal approach for designing controllers for active flutter suppression Bueno, Douglas D. [UNESP] Aeroelastic modal model Control design Flutter suppression Transformation similarity |
title_short |
A modal approach for designing controllers for active flutter suppression |
title_full |
A modal approach for designing controllers for active flutter suppression |
title_fullStr |
A modal approach for designing controllers for active flutter suppression |
title_full_unstemmed |
A modal approach for designing controllers for active flutter suppression |
title_sort |
A modal approach for designing controllers for active flutter suppression |
author |
Bueno, Douglas D. [UNESP] |
author_facet |
Bueno, Douglas D. [UNESP] Gonsalez Bueno, Camila G. [UNESP] Dowell, Earl H. |
author_role |
author |
author2 |
Gonsalez Bueno, Camila G. [UNESP] Dowell, Earl H. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Duke University |
dc.contributor.author.fl_str_mv |
Bueno, Douglas D. [UNESP] Gonsalez Bueno, Camila G. [UNESP] Dowell, Earl H. |
dc.subject.por.fl_str_mv |
Aeroelastic modal model Control design Flutter suppression Transformation similarity |
topic |
Aeroelastic modal model Control design Flutter suppression Transformation similarity |
description |
Flutter is an important topic to be considered during an aircraft development mainly due to its potentially catastrophic behavior. Typically a new aerial vehicle can require the addition of mass and limitations on its flight envelope to be flutter free. As an alternative, active control technologies can be used employing actuators and sources of power, and there are different techniques for computing the actuator’s force. In general, many approaches depend on describing the aeroelastic system through the state-space representation in the time domain. However, the state-space dynamic matrix typically contains nonphysical eigenvalues due to the unsteady aerodynamic forces approximations. In this context, this article introduces an algebraic arrangement for designing a modal controller to suppress the flutter phenomenon. The approach considers the modal state-space realization combined with the linear quadratic regulator to compute a control gain. The gain is converted from the new modal domain to the physical, and the control force introduces an effect of incremental damping for all flight envelope, although the controller is designed particularly for the flutter speed. To demonstrate the approach, numerical simulations are carried out considering the three-degree-of-freedom airfoil. The results show that this technique allows stabilizing the system. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:19:19Z 2021-06-25T10:19:19Z 2021-01-01 |
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/s40430-020-02754-z Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 43, n. 1, 2021. 1806-3691 1678-5878 http://hdl.handle.net/11449/205668 10.1007/s40430-020-02754-z 2-s2.0-85098624958 |
url |
http://dx.doi.org/10.1007/s40430-020-02754-z http://hdl.handle.net/11449/205668 |
identifier_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 43, n. 1, 2021. 1806-3691 1678-5878 10.1007/s40430-020-02754-z 2-s2.0-85098624958 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
|
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1792961755455946752 |