The aeroacoustic noise influence of retractable assembly on aircraft surface is researched. Aeroacoustic noise of different points on airframe is calculated for comparison between the airplane contains retractable assembly and a smooth surface airplane. The change of noise and the distribution of noise source caused by retractable assembly on aircraft surface can be obtained. A pilot ear-level plane is built for sound pressure level calculation on cockpit noise. The effect of the device protruded and retracted on the cockpit noise is analyzed. The results show that the main noise sources are distributed near protrusive pipe area and on the wall of intake cavity. The noise in middle of cabin is stronger than that in front and behind of cabin. When the retractable assembly is protruded, the noise increase from 6dB to 13dB. The noise spectrum is continuous and has characteristic of broad band, and the noise increase with the Mach number. The noise is in low frequency when retractable assembly is protruded and the noise is in medium-high frequency when the device is retracted. The results can provide technical foundation for the future aircraft noise reduction design.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Study on Aeroacoustic Noise Effect on Cockpit of Retractable Aerial Refueling Assembly


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Gao, Xu (Autor:in) / Pan, Zhixiong (Autor:in) / Zhao, Dongqiang (Autor:in) / Chai, Jianzhong (Autor:in)


    Erscheinungsdatum :

    2021-11-02


    Format / Umfang :

    11 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Study on Aeroacoustic Noise Effect on Cockpit of Retractable Aerial Refueling Assembly

    Gao, Xu / Pan, Zhixiong / Zhao, Dongqiang et al. | TIBKAT | 2022


    Retractable aircraft refueling area illuminating lamp

    ZHANG QIAN / WANG QIAN / WANG LIEYONG | Europäisches Patentamt | 2024

    Freier Zugriff


    Aerial refueling lamp with hidden refueling function and manufacturing method of aerial refueling lamp

    BI JING / LU JIANFEI / LUO FEI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Hydraulic motor assembly for an aerial refueling system

    BARTOV ASHER / KUBILOS CHARLES | Europäisches Patentamt | 2021

    Freier Zugriff