An experimental testing campaign was conducted in the NASA Langley Low Speed Aeroacoustic Wind Tunnel (LSAWT) in order to better understand the acoustic characteristics of a representative quadcopter system in both hover and forward flight conditions. Aerodynamic performance measurements were acquired using a multi-axis load cell to trim the vehicle to desired thrust/lift conditions. Hover acoustic measurements provide evidence of prominent rotor-airframe interaction noise that manifests in the form of high-amplitude harmonics of the fundamental rotor blade passage frequency. Forward flight acoustic measurements of simultaneous rotor operations indicate the presence of strong forward-aft rotor wake interactions that yield increased broadband noise levels relative to cases of individual rotor operation. These results indicate the potential need for modeling complex noise generation mechanisms associated with multirotor and rotor-airframe interactions for vehicles of this class.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Acoustic Wind Tunnel Measurements of a Quadcopter in Hover and Forward Flight Conditions


    Contributors:

    Publication date :

    2018


    Size :

    14 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English


    Keywords :



    Identification and Reduction of Interactional Noise of a Quadcopter in Hover and Forward Flight Conditions

    Nikolas S Zawodny / Nicole A Pettingill / Christopher S Thurman | NTRS | 2022


    Aeroacoustic Testing of UAS-Scale Rotors for a Quadcopter in Hover and Forward Flight

    N. A. Pettingill / N. S. Zawodny / C. S. Thurman | NTIS | 2022


    Aeroacoustic Testing of UAS-Scale Rotors for a Quadcopter in Hover and Forward Flight

    Nicole A Pettingill / Nikolas S Zawodny / Christopher S Thurman | NTRS


    Aeroacoustic Testing of UAS-Scale Rotors for a Quadcopter in Hover and Forward Flight

    Pettingill, Nicole A. / Zawodny, Nikolas S. / Thurman, Christopher S. | AIAA | 2022