Abstract
In this work retrofit winglets are designed for a transonic aircraft. The used geometry is a generic twin engine aircraft. In a first step, winglets are designed using a lifting line method along with RANS solutions. L/D is optimized by taking into account a certain wing root bending moment reserve for the reference wing. The final analysis includes wing deformation studies by means of fluid-structure coupling. Therefore a finite element model has been developed with respect to standard loadings of certification authority. Using the fluid-structure coupling process RANS solutions with deformed wing shapes are obtained for cruise conditions in order to determine the influence of deformation on performance and for a 2.5g load case in order to evaluate ultimate structural loading. Comparing the results of the rigid wing with the deformed wing the wing root bending moment and the bending moment of the device is clearly reduced for the deformed wing. Thereby the advantage to which an implementation of the described method for future design processes would lead becomes apparent.
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References
A. Mann, The M-DAW Project, Modelling and Design of Advanced Wing Tip Devices, CEAS/KATNET Conference on Key Aerodynamic Technologies, Conference Proceedings, June 2005, Bremen.
J.-L. Hantrais-Gervois, M. Rapin, Aerodynamic and Structural Behaviour of a Wing Equipped with a Winglet at Cruise, 44 AIAA Aerospace Science Meeting and Exhibit, January 2006, Reno, Nevada, AIAA 2006-1489
B.B. Prananta, A. Namer, J.E.J. Maseland, J. van Muijden, S.P. Spekreijse, Winglets on Large Civil Aircraft: Impact on Wing Deformation, International Forum on Aerolasticity and Structural Dynamics IFASD 2005, 2005.
K.-H. Horstmann: Ein Mehrfach-Traglinienverfahren und seine Verwendung für Entwurf und Nachrechnung nichtplanarer Flügelanordnungen, DVFLR-FB 87–151, 1987.
N. Kroll, J.K. Fassbender [Hrsg.]: MEGAFLOW — Numerical How Simulation for Aircraft Design, Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), 89, Springer Verlag, Closing Preparation DLR Project MEGAFLOW, 2002 Braunschweig.
B. Nagel., M. Rose, H.P. Monner, R. Heinrich: An Alternative Procedure for FE-Wing Modelling, Deutscher Luft-und Raumfahrtkongress Nov. 2006, Braunschweig, Germany.
R. Heinrich, J. Wild, Th. Streit., B. Nagel: Steady Fluid-Structure Coupling for Transport aircraft, Deutscher Luft-und Raumfahrtkongress 2006, Braunschweig.
G. Heller, P. Kreuzer, S. Dirmeier, T. Streit: Aerodynamische Untersuchung verschiedener Hü gelseitenkanten-Erweiterungen der Envoy 7, Jahrbuch DGLR, Bd. III, pp. 1629–1634, 2002.
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Streit, T., Himisch, J., Heinrich, R., Nagel, B., Horstmann, K., Liersch, C. (2007). Design of a Retrofit Winglet for a Transport Aircraft with Assessment of Cruise and Ultimate Structural Loads. In: Tropea, C., Jakirlic, S., Heinemann, HJ., Henke, R., Hönlinger, H. (eds) New Results in Numerical and Experimental Fluid Mechanics VI. Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), vol 96. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74460-3_8
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DOI: https://doi.org/10.1007/978-3-540-74460-3_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-74458-0
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