On the Design of Aeroelastically Scaled Models of High Aspect-Ratio Wings

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dc.contributor.author Afonso, Frederico
dc.contributor.author Coelho, Mónica
dc.contributor.author Vale, José
dc.contributor.author Lau, Fernando
dc.contributor.author Suleman, Afzal
dc.date.accessioned 2021-02-05T23:48:43Z
dc.date.available 2021-02-05T23:48:43Z
dc.date.copyright 2020 en_US
dc.date.issued 2020
dc.identifier.citation Afonso, F., Coelho, M., Vale, J., Lau, F., & Suleman, A. (2020). On the Design of Aeroelastically Scaled Models of High Aspect-Ratio Wings. Aerospace, 7(11), 1-18. https://doi.org/10.3390/aerospace7110166. en_US
dc.identifier.uri https://doi.org/10.3390/aerospace7110166
dc.identifier.uri http://hdl.handle.net/1828/12657
dc.description.abstract Recently, innovative aircraft designs were proposed to improve aerodynamic performance. Examples include high aspect ratio wings to reduce the aerodynamic induced drag to achieve lower fuel consumption. Such solution when combined with a lightweight structure may lead to aeroelastic instabilities such as flutter at lower air speeds compared to more conventional wing designs. Therefore, in order to ensure safe flight operation, it is important to study the aeroelastic behavior of the wing throughout the flight envelope. This can be achieved by either experimental or computational work. Experimental wind tunnel and scaled flight test models need to exhibit similar aeroelastic behavior to the full scale air vehicle. In this paper, three different aeroelastic scaling strategies are formulated and applied to a flexible high aspect-ratio wing. These scaling strategies are first evaluated in terms of their ability to generate reduced models with the intended representations of the aerodynamic, structural and inertial characteristics. Next, they are assessed in terms of their potential in representing the unsteady non-linear aeroelastic behavior in three different flight conditions. The scaled models engineered by exactly scaling down the internal structure suitably represent the intended aeroelastic behavior and allow the performance assessment for the entire flight envelope. However, since both the flight and wind tunnel models are constrained by physical and budgetary limitations, custom built structural models are more likely to be selected. However, the latter ones are less promising to study the entire flight envelope. en_US
dc.description.sponsorship The authors acknowledge Fundação para a Ciência e a Tecnologia (FCT), through IDMEC, under LAETA, project UIDB/50022/2020. en_US
dc.language.iso en en_US
dc.publisher Aerospace en_US
dc.subject aeroelastic scaling en_US
dc.subject nonlinear aeroelasticity en_US
dc.subject high aspect-ratio wings en_US
dc.subject fluid-structure interaction en_US
dc.title On the Design of Aeroelastically Scaled Models of High Aspect-Ratio Wings en_US
dc.type Article en_US
dc.description.scholarlevel Faculty en_US
dc.description.reviewstatus Reviewed en_US

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