This report addresses development of a rotor state/trim modeling capability for noise modeling of decelerating rotorcraft approaches. The resulting technique employs discretization of the descent trajectory as multiple steady state segments for input to CAMRAD.Mod 1 to predict rotor states for acoustic analysis. Deceleration is included by modifying the CAMRAD.Mod 1 free flight trim options to allow trim to the specified acceleration/deceleration components.


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    Title :

    Rotorcraft Noise Abatement Flight Path Modeling


    Contributors:
    H. Murty (author) / C. R. Berezin (author)

    Publication date :

    2000


    Size :

    80 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Rotorcraft Noise Abatement Flight Path Modeling

    Murty, Hema / Berezin, Charles R. | NTRS | 2000




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    Acoustic Flight Tests of Rotorcraft Noise-Abatement Approaches Using Local Differential GPS Guidance

    Chen, R. T. N. / Hindson, W. S. / Mueller, A. W. et al. | British Library Conference Proceedings | 1995