The aeroelastic response of the Delft–Pazy wing to steady and periodic unsteady inflow conditions is analyzed experimentally. The Delft–Pazy wing is a highly flexible wing model based on the benchmark Pazy wing (Avin, O., Raveh, D. E., Drachinsky, A., Ben-Shmuel, Y., and Tur, M., “Experimental Aeroelastic Benchmark of a Very Flexible Wing,” AIAA Journal, Vol. 60, No. 3, 2022, pp. 1745–1768) and exhibits wingtip displacements of more than 24% of the span in the present study. The nonintrusive measurements are performed with an integrated optical approach that provides combined measurements of the structural response of the wing and the unsteady flowfield around it. The aeroelastic loads acting on the wing are derived using physical models and validated against force balance measurements, showing a good agreement for all considered inflow conditions. The analysis of the aeroelastic response of the wing to the unsteady inflow produced by a gust generator shows that both structural and aerodynamic responses depend strongly on the frequency of the gust. The results of this study provide a characterization of the aeroelastic behavior of the Delft–Pazy wing and can serve as a reference for the development of novel and improved nonlinear aeroelastic simulation models.


    Access

    Download


    Export, share and cite



    Title :

    Nonintrusive Experimental Aeroelastic Analysis of a Highly Flexible Wing



    Published in:

    AIAA Journal ; 61 , 7 ; 3062-3077


    Publication date :

    2023-07-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Systematic Experimental Evaluation of Aeroelastic Characteristics of a Highly Flexible Wing Demonstrator

    Jayatilake, Sanuja Delasalle / Lowenberg, Mark / Woods, Benjamin King Sutton et al. | AIAA | 2024


    Experimental Aeroelastic Benchmark of a Very Flexible Wing

    Avin, Or / Raveh, Daniella E. / Drachinsky, Ariel et al. | AIAA | 2022



    Gust Responses of Highly Flexible Wing With Semi-Aeroelastic Hinge

    Gu, Huaiyuan / Cooper, Jonathan E. / Marchetti, Luca et al. | AIAA | 2025


    Aeroelastic Modeling and Control of an Experimental Flexible Wing

    Pusch, Manuel / Ossmann, Daniel / Dillinger, Johannes et al. | TIBKAT | 2019