A new method is presented for estimating frequency responses and their uncertainties from wind-tunnel data in real time. The method uses orthogonal phase-optimized multi- sine excitation inputs and a recursive Fourier transform with a least-squares estimator. The method was first demonstrated with an F-16 nonlinear flight simulation and results showed that accurate short period frequency responses were obtained within 10 seconds. The method was then applied to wind-tunnel data from a previous aeroelastic test of the Joined- Wing SensorCraft. Frequency responses describing bending strains from simultaneous control surface excitations were estimated in a time-efficient manner.


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    Title :

    Real-Time Frequency Response Estimation Using Joined-Wing SensorCraft Aeroelastic Wind-Tunnel Data


    Contributors:

    Conference:

    2012 AIAA Atmospheric Flight Mechanics Conference ; 2012 ; Minneapolis, MN, United States


    Publication date :

    2012-08-13


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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    Grauer, J. / Heeg, J. / Morelli, E. et al. | British Library Conference Proceedings | 2012



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