'Blade-fixed' atmospheric turbulence encountered by a helicopter substantially differs from body-fixed (i.e., fuselage) turbulence, because the rotational velocity moves the blade station fore and aft through the turbulence. The present closed-form solution of a frequency-time spectrum for the dominant vertical turbulence velocity at arbitrary blade station defines in what way and in what degree the rotational velocity affects rotor-disk turbulence frequency and temporal characteristics. Blade-flapping response to blade- and body-fixed turbulence is also presented over a range of turbulence-scale length and advance ratio.


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    Titel :

    Adequacy of modeling turbulence and related effects on helicopter response


    Beteiligte:
    George, V. V. (Autor:in) / Gaonkar, G. H. (Autor:in) / Prasad, J. V. R. (Autor:in) / Schrage, D. P. (Autor:in)

    Erschienen in:

    AIAA Journal ; 30 , 6 Ju


    Erscheinungsdatum :

    01.06.1992



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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