A series of experiments were conducted in an anechoic chamber to investigate the noise and performance of an ideally twisted rotor design, leading to validation of a low-fidelity aerodynamic performance and acoustic modeling tool chain. An "ideally twisted" rotor was designed in order to simplify the theoretical rotor inflow for a target thrust condition in hover. This rotor design was then fabricated using state-of-the-art rapid prototyping and tested in an anechoic chamber facility. Aerodynamic load and acoustic data were acquired across a range of rotation rates (RPM) and rotor collective settings in order to ascertain the accuracy of the low-fidelity modeling codes. Emphasis was placed on modeling of the broadband self-noise generated by the rotor system due to the fact that it was found to be a prominent contributor to the overall rotor system noise.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Acoustics and Performance Characteristics of an Ideally Twisted Rotor in Hover



    Conference:

    AIAA SciTech Forum ; 2021 ; Nashville, TN, US


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Acoustic and Performance Characteristics of an Ideally Twisted Rotor in Hover

    N. A. Pettingill / N. S. Zawodny / C. S. Thurman et al. | NTIS | 2020


    Acoustic and Performance Characteristics of an Ideally Twisted Rotor in Hover

    Pettingill, Nicole A. / Zawodny, Nikolas S. / Thurman, Christopher et al. | AIAA | 2021


    ACOUSTIC AND PERFORMANCE CHARACTERISTICS OF AN IDEALLY TWISTED ROTOR IN HOVER

    Pettingill, Nicole A. / Zawodny, Nikolas S. / Thurman, Christopher et al. | TIBKAT | 2021


    Acoustic and Performance Characteristics of an Ideally Twisted Rotor in Hover

    Nicole A. Pettingill / Nikolas S. Zawodny / Christopher S. Thurman et al. | NTRS


    Ideally Twisted Rotor Testing and Predictions

    Nicole A Pettingill / Nikolas S Zawodny | NTRS | 2020