During the period of this contract, research was carried out on three main aspects of helicopter rotor noise. These were the prediction of broadband noise due to random loadings, high speed blade noise, and noise due to the acceleration of solid bodies. The noise due to the acceleration of solid bodies was investigated experimentally and compared to calculations based on Farassat's results. The final results show excellent agreement between theory and experiment and a paper has been submitted to the Journal of Sound and Vibration reporting this work.


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    Titel :

    Research on Helicopter Rotor Noise


    Beteiligte:
    A. R. George (Autor:in)

    Erscheinungsdatum :

    1975


    Format / Umfang :

    17 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    DAHAN, C. / GRATIEUX, E. | AIAA | 1980


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    Claude Dahan / Edmond Gratieux | AIAA | 1981


    Helicopter rotor thickness noise

    Dahan, C. / Gratieux, E. | Tema Archiv | 1980


    Helicopter tail rotor noise

    CHOU, S.-T. / GEORGE, A. | AIAA | 1986