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://hdl.handle.net/11449/194759 |
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 range 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 range 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.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, BR-17033360 Bauru, SP, BrazilUniv Estadual Paulista, BR-17033360 Bauru, SP, BrazilSpringerUniversidade Estadual Paulista (Unesp)Bueno, Douglas D.Marqui, Clayton R.Goes, Luiz C. S.Goncalvez, Paulo J. P. [UNESP]2020-12-10T16:36:46Z2020-12-10T16:36:46Z2012-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article545-551Journal Of The Brazilian Society Of Mechanical Sciences And Engineering. Heidelberg: Springer Heidelberg, v. 34, p. 545-551, 2012.1678-5878http://hdl.handle.net/11449/194759WOS:000322253000002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of The Brazilian Society Of Mechanical Sciences And Engineeringinfo:eu-repo/semantics/openAccess2021-10-22T20:36:15Zoai:repositorio.unesp.br:11449/194759Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T20:36:15Repositório 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. Goes, Luiz C. S. Goncalvez, Paulo J. P. [UNESP] |
author_role |
author |
author2 |
Marqui, Clayton R. Goes, Luiz C. S. Goncalvez, Paulo J. P. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bueno, Douglas D. Marqui, Clayton R. Goes, Luiz C. S. Goncalvez, 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 range 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 |
2012-01-01 2020-12-10T16:36:46Z 2020-12-10T16:36:46Z |
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 |
Journal Of The Brazilian Society Of Mechanical Sciences And Engineering. Heidelberg: Springer Heidelberg, v. 34, p. 545-551, 2012. 1678-5878 http://hdl.handle.net/11449/194759 WOS:000322253000002 |
identifier_str_mv |
Journal Of The Brazilian Society Of Mechanical Sciences And Engineering. Heidelberg: Springer Heidelberg, v. 34, p. 545-551, 2012. 1678-5878 WOS:000322253000002 |
url |
http://hdl.handle.net/11449/194759 |
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.format.none.fl_str_mv |
545-551 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1799965169234739200 |