Aeroelastic stability analysis using linear matrix inequalities
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1678-58782012000600002 http://hdl.handle.net/11449/109646 |
Resumo: | The present work describes an alternative methodology for identification of aeroelastic stability in a range of varying parameters. Analysis is performed in time domain based on Lyapunov stability and solved by convex optimization algorithms. The theory is outlined and simulations are carried out on a benchmark system to illustrate the method. The classical methodology with the analysis of the system's eigenvalues is presented for comparing the results and validating the approach. The aeroelastic model is represented in state space format and the unsteady aerodynamic forces are written in time domain using rational function approximation. The problem is formulated as a polytopic differential inclusion system and the conceptual idea can be used in two different applications. In the first application the method verifies the aeroelastic stability in a range of air density (or its equivalent altitude range). In the second one, the stability is verified for a rage of velocities. These analyses are in contrast to the classical discrete analysis performed at fixed air density/velocity values. It is shown that this method is efficient to identify stability regions in the flight envelope and it offers promise for robust flutter identification. |
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Repositório Institucional da UNESP |
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Aeroelastic stability analysis using linear matrix inequalitiesFlutter analysisLMILyapunov functionTime domainThe present work describes an alternative methodology for identification of aeroelastic stability in a range of varying parameters. Analysis is performed in time domain based on Lyapunov stability and solved by convex optimization algorithms. The theory is outlined and simulations are carried out on a benchmark system to illustrate the method. The classical methodology with the analysis of the system's eigenvalues is presented for comparing the results and validating the approach. The aeroelastic model is represented in state space format and the unsteady aerodynamic forces are written in time domain using rational function approximation. The problem is formulated as a polytopic differential inclusion system and the conceptual idea can be used in two different applications. In the first application the method verifies the aeroelastic stability in a range of air density (or its equivalent altitude range). In the second one, the stability is verified for a rage of velocities. These analyses are in contrast to the classical discrete analysis performed at fixed air density/velocity values. It is shown that this method is efficient to identify stability regions in the flight envelope and it offers promise for robust flutter identification.Technological Institute of AeronauticsUniversidade Estadual PaulistaUniversidade Estadual PaulistaAssociação Brasileira de Engenharia e Ciências Mecânicas - ABCMInstituto Tecnológico de Aeronáutica (ITA)Universidade Estadual Paulista (Unesp)Bueno, Douglas D.Marqui, Clayton R.Góes, Luiz C. S.Gonçalvez, Paulo J. P. [UNESP]2014-09-30T18:18:32Z2014-09-30T18:18:32Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article545-551application/pdfhttp://dx.doi.org/10.1590/S1678-58782012000600002Journal of the Brazilian Society of Mechanical Sciences and Engineering. Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, v. 34, n. spe2, p. 545-551, 2012.1678-5878http://hdl.handle.net/11449/10964610.1590/S1678-58782012000600002S1678-58782012000600002S1678-58782012000600002.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineering1.6270,362info:eu-repo/semantics/openAccess2024-01-16T06:31:39Zoai:repositorio.unesp.br:11449/109646Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-16T06:31:39Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Aeroelastic stability analysis using linear matrix inequalities |
title |
Aeroelastic stability analysis using linear matrix inequalities |
spellingShingle |
Aeroelastic stability analysis using linear matrix inequalities Bueno, Douglas D. Flutter analysis LMI Lyapunov function Time domain |
title_short |
Aeroelastic stability analysis using linear matrix inequalities |
title_full |
Aeroelastic stability analysis using linear matrix inequalities |
title_fullStr |
Aeroelastic stability analysis using linear matrix inequalities |
title_full_unstemmed |
Aeroelastic stability analysis using linear matrix inequalities |
title_sort |
Aeroelastic stability analysis using linear matrix inequalities |
author |
Bueno, Douglas D. |
author_facet |
Bueno, Douglas D. Marqui, Clayton R. Góes, Luiz C. S. Gonçalvez, Paulo J. P. [UNESP] |
author_role |
author |
author2 |
Marqui, Clayton R. Góes, Luiz C. S. Gonçalvez, Paulo J. P. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Instituto Tecnológico de Aeronáutica (ITA) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bueno, Douglas D. Marqui, Clayton R. Góes, Luiz C. S. Gonçalvez, Paulo J. P. [UNESP] |
dc.subject.por.fl_str_mv |
Flutter analysis LMI Lyapunov function Time domain |
topic |
Flutter analysis LMI Lyapunov function Time domain |
description |
The present work describes an alternative methodology for identification of aeroelastic stability in a range of varying parameters. Analysis is performed in time domain based on Lyapunov stability and solved by convex optimization algorithms. The theory is outlined and simulations are carried out on a benchmark system to illustrate the method. The classical methodology with the analysis of the system's eigenvalues is presented for comparing the results and validating the approach. The aeroelastic model is represented in state space format and the unsteady aerodynamic forces are written in time domain using rational function approximation. The problem is formulated as a polytopic differential inclusion system and the conceptual idea can be used in two different applications. In the first application the method verifies the aeroelastic stability in a range of air density (or its equivalent altitude range). In the second one, the stability is verified for a rage of velocities. These analyses are in contrast to the classical discrete analysis performed at fixed air density/velocity values. It is shown that this method is efficient to identify stability regions in the flight envelope and it offers promise for robust flutter identification. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2014-09-30T18:18:32Z 2014-09-30T18:18:32Z |
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/10.1590/S1678-58782012000600002 Journal of the Brazilian Society of Mechanical Sciences and Engineering. Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, v. 34, n. spe2, p. 545-551, 2012. 1678-5878 http://hdl.handle.net/11449/109646 10.1590/S1678-58782012000600002 S1678-58782012000600002 S1678-58782012000600002.pdf |
url |
http://dx.doi.org/10.1590/S1678-58782012000600002 http://hdl.handle.net/11449/109646 |
identifier_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, v. 34, n. spe2, p. 545-551, 2012. 1678-5878 10.1590/S1678-58782012000600002 S1678-58782012000600002 S1678-58782012000600002.pdf |
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 1.627 0,362 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
545-551 application/pdf |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM |
dc.source.none.fl_str_mv |
SciELO 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_ |
1799965639565115392 |