Structureborne noise measurements performed on a twin-engine aircraft (Beechcraft Baron) are reported. There are two overall objectives of the test program. The first is to obtain data to support the development of analytical models of the wing and fuselage, while the second is to evaluate effects of structural parameters on cabin noise. Measurements performed include structural and acoustic responses to impact excitation, structural and acoustic loss factors, and modal parameters of the wing. Path alterations include added mass to simulate fuel, variations in torque of bolts joining wing and fuselage, and increased acoustic absorption. Conclusions drawn regarding these measurements are presented.


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    Titel :

    Structureborne Noise Measurements on a Small Twin-Engine Aircraft


    Beteiligte:
    J. E. Cole (Autor:in) / K. F. Martini (Autor:in)

    Erscheinungsdatum :

    1988


    Format / Umfang :

    71 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Structureborne noise measurements on a small twin-engine aircraft

    Cole, J. E., III / Martini, K. F. | NTRS | 1988


    Structureborne noise investigations of a twin engine aircraft

    Garrelick, J. M. / Cole, J. E., III / Martini, K. | NTRS | 1986


    Structureborne noise investigations of a twin engine aircraft

    GARRELICK, J. / COLE, III, J. / MARTINI, K. | AIAA | 1986


    Structureborne noise in aircraft

    Clevenson, S.A. / Metcalf, V.L. | Tema Archiv | 1987


    Analytical modeling of the structureborne noise path on a small twin-engine aircraft

    Cole, J. E., III / Stokes, A. Westagard / Garrelick, J. M. et al. | NTRS | 1988