A new model for estimating the noise radiation during maneuvering flight is developed in this paper. The model applies the Quasi-Static Acoustic Mapping (Q-SAM) method to a database of acoustic spheres generated using the Fundamental Rotorcraft Acoustics Modeling from Experiments (FRAME) technique. A method is developed to generate a realistic flight trajectory from a limited set of waypoints and is used to calculate the quasi-static operating condition and corresponding acoustic sphere for the vehicle throughout the maneuver. By using a previously computed database of acoustic spheres, the acoustic impact of proposed helicopter operations can be rapidly predicted for use in mission-planning. The resulting FRAME-QS model is applied to near-horizon noise measurements collected for the Bell 430 helicopter undergoing transient pitch up and roll maneuvers, with good agreement between the measured data and the FRAME-QS model.


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    Titel :

    A Maneuvering Flight Noise Model for Helicopter Mission Planning


    Beteiligte:
    Greenwood, Eric (Autor:in) / Rau, Robert (Autor:in) / May, Benjamin (Autor:in) / Hobbs, Christopher (Autor:in)

    Kongress:

    American Helicopter Society Annual Forum ; 2015 ; Virginia Beach, VA, United States


    Erscheinungsdatum :

    05.05.2015


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    A Maneuvering Flight Noise Model for Helicopter Mission Planning

    Greenwood, Eric / Rau, Robert / May, Benjamin et al. | British Library Conference Proceedings | 2015



    Inverse simulation for helicopter maneuvering flight

    Yang, C. / Xiong, L.-y. / Zhang, X.-g. | British Library Online Contents | 2000


    Semi-Empirical Noise Modeling Method for Helicopter Maneuvering Flight Operations

    E. Greenwood / F. Schmitz / R. D. Sickenberger | NTIS | 2012


    A Semi-Empirical Noise Modeling Method for Helicopter Maneuvering Flight Operations

    Greenwood, Eric / Schmitz, Fredric / Sickenberger, Richard D. | NTRS | 2012