Noise reduction design concepts have been applied to a regional jet’s two-wheel main landing gear to reduce airframe noise during the approach. Several concepts were initially developed for the main landing gear of the Japan Aerospace Exploration Agency’s research aircraft, “Hisho,” based on a Cessna Citation Sovereign business jet. The concepts were tailored to the larger regional jet main landing gear after a careful investigation of aircraft noise sources during flight and wind tunnel tests, the flowfields around the main landing gear by computational fluid dynamics simulations, far-field noise measurements with a 10%-scale wind tunnel model, and an evaluation of structural feasibility. The initial design was then improved upon by further investigations with a 20%-scale wind tunnel model and additional computational simulations. New noise reduction concepts and those applied to Hisho were also evaluated and adopted to enhance the overall noise reduction performance. Compared with a baseline configuration, significant noise reduction, 5.5 dB(A) in overall sound pressure level at a position directly below the main landing gear, was achieved in a wind tunnel test with the 20%-scale model.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Further Noise Reduction of Regional Jet Two-Wheel Main Landing Gear


    Contributors:

    Published in:

    Publication date :

    2025-05-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Further Noise Reduction of Regional Jet Two-Wheel Main Landing Gear

    Ito, Yasushi / Takaishi, Takehisa / Shoji, Hirokazu et al. | AIAA | 2022


    Noise Reduction of Regional Jet Two-Wheel Main Landing Gear

    Ito, Yasushi / Yokokawa, Yuzuru / Takaishi, Takehisa et al. | AIAA | 2019


    The Reduction of Main Landing Gear Noise

    Kennedy, John / Neri, Eleonora / Bennett, Gareth J. | AIAA | 2016


    Experimental study on Noise Generation of a Two-Wheel Main Landing Gear

    Yokokawa, Yuzuru / Imamura, Taro / Ura, Hiroki et al. | AIAA | 2010


    The Reduction of Main Landing Gear Noise (AIAA 2016-2900)

    Kennedy, John / Neri, Eleonora / Bennett, Gareth J. | British Library Conference Proceedings | 2016