The use of Gramian matrices for aeroelastic stability analysis

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBueno, Douglas Domingues
dc.creatorMarqui, Clayton Rodrigo
dc.creatorSandoval Góes, Luiz Carlos
dc.creatorGonçalves, Paulo José Paupitz
dc.date2014-05-27T11:29:29Z
dc.date2016-10-25T18:48:28Z
dc.date2014-05-27T11:29:29Z
dc.date2016-10-25T18:48:28Z
dc.date2013-05-13
dc.date.accessioned2017-04-06T02:23:48Z
dc.date.available2017-04-06T02:23:48Z
dc.identifierMathematical Problems in Engineering, v. 2013.
dc.identifier1024-123X
dc.identifier1563-5147
dc.identifierhttp://hdl.handle.net/11449/75388
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75388
dc.identifier10.1155/2013/941689
dc.identifierWOS:000317819700001
dc.identifier2-s2.0-84877303220.pdf
dc.identifier2-s2.0-84877303220
dc.identifierhttp://dx.doi.org/10.1155/2013/941689
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/896134
dc.descriptionMost of the established procedures for analysis of aeroelastic flutter in the development of aircraft are based on frequency domain methods. Proposing new methodologies in this field is always a challenge, because the new methods need to be validated by many experimental procedures. With the interest for new flight control systems and nonlinear behavior of aeroelastic structures, other strategies may be necessary to complete the analysis of such systems. If the aeroelastic model can be written in time domain, using state-space formulation, for instance, then many of the tools used in stability analysis of dynamic systems may be used to help providing an insight into the aeroelastic phenomenon. In this respect, this paper presents a discussion on the use of Gramian matrices to determine conditions of aeroelastic flutter. The main goal of this work is to introduce how observability gramian matrix can be used to identify the system instability. To explain the approach, the theory is outlined and simulations are carried out on two benchmark problems. Results are compared with classical methods to validate the approach and a reduction of computational time is obtained for the second example. © 2013 Douglas Domingues Bueno et al.
dc.languageeng
dc.relationMathematical Problems in Engineering
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAeroelastic flutter
dc.subjectAeroelastic phenomenon
dc.subjectAeroelastic stability analysis
dc.subjectAeroelastic structures
dc.subjectExperimental procedure
dc.subjectFrequency-domain methods
dc.subjectObservability Gramian
dc.subjectState space formulation
dc.subjectFlutter (aerodynamics)
dc.subjectFrequency domain analysis
dc.subjectState space methods
dc.subjectSystem stability
dc.subjectAeroelasticity
dc.titleThe use of Gramian matrices for aeroelastic stability analysis
dc.typeOtro


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