An experiment has been conducted to evaluate the use of force actuators on an aircraft fuselage model interior trim panel as the control element for active control of interior noise. These experiments were conducted on a composite model of a commuter class aircraft. A trim panel was designed specifically for this evaluation, constructed in three large sections and hard mounted to the ring frames of the primary structure. Piezoceramic actuators were bonded to the outer surface of the trim panels. Studies of the interior pressure response due to both the primary source alone and control source(s) alone were conducted as well as the control cases. Initial results provided global reductions of 5 dB for the case where the response was dominated by an acoustic resonance. In all other cases, only local reductions at the error microphones were attained. This was attributed to very strong mismatches between the interior response driven by the primary source and that driven by the control sources. This result is in strong contrast to previous results attained for control actuators attached to the primary structure.This paper is declared a work of the U.S. Government and is not subject to copyright protection in the United States


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Study of Active Trim Panels for Interior Noise Reduction in an Aircraft Fuselage


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lyle, K. H. (Autor:in) / Silcox, R. J. (Autor:in)

    Kongress:

    General, Corporate & Regional Aviation Meeting & Exposition ; 1995



    Erscheinungsdatum :

    01.05.1995




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Study of Active Trim Panels for Interior Noise Reduction in an Aircraft Fuselage

    Lyle, K. H. / Silcox, R. J. / SAE | British Library Conference Proceedings | 1995



    Noise Reduction in an Aircraft Fuselage Model Using Active Trim Panels

    Silcox, Richard J. / Lyle, Karen H. | NTRS | 1996


    Active Sandwich Trim Panels for Quieter Aircraft Interior

    Sun, J. Q. | British Library Online Contents | 1999


    Active Sandwich Trim Panels for Quieter Aircraft Interior

    Sun, J. O. / ASME | British Library Conference Proceedings | 1999