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    Aeroelastic Deformation Measurements of Flap, Gap, and Overhang on a Semispan Model

    Aeroelastic Deformation Measurements of Flap, Gap, and Overhang on a Semispan Model


    Single-camera, single-view videogrammetry has been used to determine static aeroelastic deformation of a slotted flap configuration on a semispan model at the National Transonic Facility (NTF). Deformation was determined by comparing wind-off to wind-on spatial data from targets placed on the main element, shroud, and flap of the model. Digitized video images from a camera were recorded and processed to automatically determine target image plane locations that were then corrected for sensor, lens, and frame grabber spatial errors. The videogrammetric technique has been established at NASA facilities as the technique of choice when high-volume static aeroelastic data with minimum impact on data taking is required. The primary measurement at the NTF with this technique in the past has been the measurement of static aeroelastic wing twist on full span models. The first results using the videogrammetric technique for the measurement of component deformation during semispan testing at the NTF are presented.

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    Titel :

    Aeroelastic Deformation Measurements of Flap, Gap, and Overhang on a Semispan Model

    Beteiligte:
    A. W. Burner (Autor:in) / T. Liu (Autor:in) / S. Garg (Autor:in) / T. A. Ghee (Autor:in) / N. J. Taylor (Autor:in)
    Erscheinungsdatum :

    2000

    Format / Umfang :

    16 pages

    Medientyp :

    Report

    Format :

    Keine Angabe

    Sprache :

    Englisch

    Schlagwörter :

    Aerodynamics , Aeroelasticity , Deformation , Flapping , Semispan models , Static deformation , Wing span , Cameras , Errors , Position(Location) , Lenses , Selection , Shrouds , Targets , Transonic wind tunnels

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