A Hybrid Reduced-Order Model for the Aeroelastic Analysis of Flexible Subsonic Wings—A Parametric Assessment

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dc.contributor.author Berci, Marco
dc.contributor.author Cavallaro, Rauno
dc.date.accessioned 2019-02-11T10:24:49Z
dc.date.available 2019-02-11T10:24:49Z
dc.date.issued 2018-07-17
dc.identifier.bibliographicCitation Berci, M., Cavallaro, R. (2018). A Hybrid Reduced-Order Model for the Aeroelastic Analysis of Flexible Subsonic Wings—A Parametric Assessment. Aerospace, 5 (3), 76.
dc.identifier.issn 2226-4310
dc.identifier.uri http://hdl.handle.net/10016/28039
dc.description.abstract A hybrid reduced-order model for the aeroelastic analysis of flexible subsonic wings with arbitrary planform is presented within a generalised quasi-analytical formulation, where a slender beam is considered as the linear structural dynamics model. A modified strip theory is proposed for modelling the unsteady aerodynamics of the wing in incompressible flow, where thin aerofoil theory is corrected by a higher-fidelity model in order to account for three-dimensional effects on both distribution and deficiency of the sectional air load. Given a unit angle of attack, approximate expressions for the lift decay and build-up are then adopted within a linear framework, where the two effects are separately calculated and later combined. Finally, a modal approach is employed to write the generalised equations of motion in state-space form. Numerical results were obtained and critically discussed for the aeroelastic stability analysis of a uniform rectangular wing, with respect to the relevant aerodynamic and structural parameters. The proposed hybrid model provides sound theoretical insights and is well suited as an efficient parametric reduced-order aeroelastic tool for the preliminary multidisciplinary design and optimisation of flexible wings in the subsonic regime.
dc.format.extent 25
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher MDPI
dc.rights © 2018 by the authors; licensee MDPI, Basel, Switzerland.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Hybrid reduced-order model
dc.subject.other Quasi-analytical
dc.subject.other Aeroelasticity
dc.subject.other Flexible wings
dc.subject.other Subsonic
dc.title A Hybrid Reduced-Order Model for the Aeroelastic Analysis of Flexible Subsonic Wings—A Parametric Assessment
dc.type article
dc.subject.eciencia Aeronáutica
dc.identifier.doi https://doi.org/10.3390/aerospace5030076
dc.rights.accessRights openAccess
dc.type.version publishedVersion
dc.identifier.publicationissue 3
dc.identifier.publicationtitle Aerospace
dc.identifier.publicationvolume 5
dc.identifier.uxxi AR/0000022416
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