Acoustic wind tunnel tests were conducted to examine the noise-generating processes of an airframe during approach flight. The airframe model was a two-dimensional wing section, to which highlift leading and trailing edge devices and landing gear could be added. Far field conventional microphones were utilized to determine component spectrum levels. An acoustic mirror directional microphone was utilized to examine noise source distributions on airframe components extended separately and in combination. Measured quantities are compared with predictions inferred from aircraft flyover data. Aeroacoustic mechanisms for each airframe component are identified. (Posamentier)


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    Title :

    Airframe noise component interaction studies


    Additional title:

    Zusammenwirkung verschiedener Komponenten bei der Entwicklung von Geraeuschen in der Flugzeughalle


    Contributors:

    Published in:

    Publication date :

    1979


    Size :

    11 Seiten, 16 Bilder, 18 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Airframe noise component interaction studies

    Fink, M. R. / Schlinker, R. H. | NTRS | 1979


    Airframe noise component interaction studies

    FINK, M. / SCHLINKER, R. | AIAA | 1979


    Airframe Noise Component Interaction Studies

    Martin R. Fink / Robert H. Schlinke | AIAA | 1980


    Airframe noise component interaction studies

    Fink, M. R. / Schlinker, R. H. | NTRS | 1979


    Airframe noise component interaction studies

    Fink, Martin R. / Schlinker, Robert H. | TIBKAT | 1979