A new method for rapidly planning and dynamically replanning low noise rotorcraft flight operations is developed. A large database of rotorcraft maneuver segments is generated, and an acoustic cost is assigned to each segment by using a computationally efficient semiempirical rotorcraft noise modeling method that accurately models the changes in rotor noise caused by maneuvering flight. Combinatoric optimization techniques are then employed to combine these maneuver segments into a low noise optimal flight path. A simple heuristic for estimating the total acoustic cost required to reach the target location is developed and incorporated into the search algorithm, allowing the computation of low noise paths in seconds. A procedure for implementing an “anytime” version of the method is described, enabling feasible solutions to be dynamically replanned “on the fly”—i.e., in fractions of a second—and refined over time to a low noise optimal solution.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Dynamic Replanning of Low Noise Rotorcraft Operations


    Contributors:

    Conference:

    Vertical Flight Society Annual Forum and Technology Display ; 2019 ; Philadelphia, PA, United States


    Publication date :

    2019-05-13


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    DYNAMIC REPLANNING OF LOW NOISE ROTORCRAFT OPERATIONS

    Greenwood, Eric | British Library Conference Proceedings | 2019


    Intelligent Dynamic Replanning for Reduced Airport Operations

    Suriyanarayanan, Ramasubramanian / Murugappan, Karpagam / Vasan, Arunchandar | IEEE | 2021


    Dynamic Replanning System

    Porta, Harry J. | NTRS | 1988



    Rotorcraft Noise

    R. J. Huston | NTIS | 1982