The factors affecting noise from small propeller driven airplanes are reviewed to quantify their affects where possible, and to indicate the potential for noise reduction. The main sources of external noise are noted to be the propellers and engines; the airframe being of less importance for both aural detection and community annoyance. Propeller noise is a strong function of tip speed and is affected adversely by nonuniform inflows. Reciprocating engine exhausts are noisier than those of comparably rated turboshaft engines, but their noise can be reduced by the use of flight certified exhaust mufflers. Presently, there are no generally accepted engineering methods for development of optimized propellers and exhaust muffler designs from weight and performance penalty standpoints. Flight demonstration results, however, suggest that required noise reductions for future certification should be possible with potentially small penalties.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Factors affecting the noise from small propeller driven aircraft


    Beteiligte:
    Maglieri, D. J. (Autor:in) / Hubbard, H. H. (Autor:in)

    Kongress:

    Society of Automotive Engineers, Business Aircraft Meeting ; 1975 ; Wichita, KS


    Erscheinungsdatum :

    01.04.1975


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Factors Affecting the Noise from Small Propeller Driven Aircraft

    Maglieri, Domenic J. / Hubbard, Harvey H. | SAE Technical Papers | 1975



    Small aircraft propeller noise with ducted propeller

    Oleson, R. / Patrick, Howard | AIAA | 1998


    Noise Control in Propeller-Driven Aircraft

    Rennison, D. C. / Wilby, J. F. | NTRS | 1983


    Propeller Driven Aircraft Cabin Noise Reduction

    Florentin, C. I. / Chow, L. C. / Confederation of European Aerospace Societies| AIAA | British Library Conference Proceedings | 1995