Observer-based state-feedback versus H-infinity output feedback control solved by LMI approach for applications in smart structures

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dc.contributor.authorda Silva, S.
dc.contributor.authorLopes, V.
dc.contributor.authorAssuncao, E.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:23Z
dc.date.available2014-05-20T13:29:23Z
dc.date.issued2005-01-01
dc.description.abstractThis paper aims with the use of linear matrix inequalities approach (LMIs) for application in active vibration control problems in smart strutures. A robust controller for active damping in a panel was designed with piezoelectrical actuators in optimal locations for illustration of the main proposal. It was considered, in the simulations of the closed-loop, a model identified by eigensystem realization algorithm (ERA) and reduced by modal decomposition. We tested two differents techniques to solve the problem. The first one uses LMI approach by state-feedback based in an observer design, considering several simultaneous constraints as: a decay rate, limited input on the actuators, bounded output peak (output energy) and robustness to parametic uncertainties. The results demonstrated the vibration attenuation in the structure by controlling only the first modes and the increased damping in the bandwidth of interest. However, it is possible to occur spillover effects, because the design has not been done considering the dynamic uncertainties related with high frequencies modes. In this sense, the second technique uses the classical H. output feedback control, also solved by LMI approach, considering robustness to residual dynamic to overcome the problem found in the first test. The results are compared and discussed. The responses shown the robust performance of the system and the good reduction of the vibration level, without increase mass.en
dc.description.affiliationUniv Estadual Paulista, Dept Elect Mech Engn, BR-15385000 Ilha Solteira, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Elect Mech Engn, BR-15385000 Ilha Solteira, Brazil
dc.format.extent269-283
dc.identifier.citationProceedings of Isma 2004: International Conference on Noise and Vibration Engineering, Vols 1-8. Heverlee: Katholieke Univ Leuven, Dept Werktuigkunde, p. 269-283, 2005.
dc.identifier.lattes8755160580142626
dc.identifier.urihttp://hdl.handle.net/11449/9904
dc.identifier.wosWOS:000239814900019
dc.language.isoeng
dc.publisherKatholieke Univ Leuven, Dept Werktuigkunde
dc.relation.ispartofProceedings of Isma 2004: International Conference on Noise and Vibration Engineering, Vols 1-8
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleObserver-based state-feedback versus H-infinity output feedback control solved by LMI approach for applications in smart structuresen
dc.typeTrabalho apresentado em evento
dcterms.rightsHolderKatholieke Univ Leuven, Dept Werktuigkunde
unesp.author.lattes8755160580142626
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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