ORIGINS of propeller noise and possible means for its reduction both within and external to turboprop aircraft are discussed here.Decreasing the tip speed and increasing the number of blades of turboprop propellers result in quieter performance within the aircraft but with a heavy weight penalty. Changes in certain aircraft design parameters, such as increasing clearance between fuselage wall and propeller tips, can also reduce internal noise and vibration.Improvements in external turboprop noise can be achieved by use of quiet-type propellers, increased rate and angle of climb, preferential runways, adequate airport zoning, and sound-dissipating foliage and ground covers.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Control of Propeller Noise In Turboprop Installations


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Schmey, Joern (Autor:in) / Guerke, Ralph M. (Autor:in)

    Kongress:

    Pre-1964 SAE Technical Papers ; 1906



    Erscheinungsdatum :

    01.01.1955




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Propeller and turboprop engine

    HE XIANG / PANG JIAN / WEI WEI et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Current turboprop power-plant installations

    Sharp, F.H. | Engineering Index Backfile | 1950


    Measurements of propeller noise in a light turboprop airplane

    Wilby, J. F. / Wilby, E. G. | NTRS | 1987


    Measurements of propeller noise in a light turboprop airplane

    WILBY, J. F. / WILBY, E. G. | AIAA | 1989