The present study addresses the reduction of the sound transmission through an aircraft fuselage by means of a combined active noise and vibration control system, so as to reduce the noise level inside the passengers' cabin. A finite element model is used to describe the vibro-acoustic behaviour of the double-panel fuselage test section. This model is combined with a simplified model of the active control system, allowing the use of control actuators with limited control signals. The problem of optimising the locations of the error sensors and the control actuators is simplified by taking into account these limits on the control signals. Experiments prove that the control loudspeakers and error microphones in the trim cavity yield higher reductions in the radiated sound power, than control shakers and error accelerometers on the trim panel. The optimised control system performs much better than a control system with sensors and actuators in arbitrarily chosen positions. The robustness of the control system can be significantly enhanced by limiting the control signals, without losing too much of the performance.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Active control of sound transmission through an aircraft fuselage test section


    Weitere Titelangaben:

    Simulation eines Regelkreises zur aktiven Lärmbekämpfung eines Flugzeugrumpfes


    Beteiligte:
    Fonseca, P. De (Autor:in) / Brussel, H. van (Autor:in) / Sas, P. (Autor:in)


    Erscheinungsdatum :

    1998


    Format / Umfang :

    11 Seiten, 9 Bilder, 1 Tabelle, 12 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Active control of sound transmission through an aircraft fuselage test section

    De Fonseca, P. / Sas, P. / Van Brussel, H. | AIAA | 1998


    Aircraft fuselage section, aircraft fuselage and aircraft

    LINDE PETER / MATTHIAS HEGENBART | Europäisches Patentamt | 2023

    Freier Zugriff

    Aircraft fuselage section

    MARTINO GONZÁLEZ ESTEBAN / FOLCH CORTÉS DIEGO / GOYA ABAURREA PABLO et al. | Europäisches Patentamt | 2018

    Freier Zugriff

    FUSELAGE SECTION OF AN AIRCRAFT, AIRCRAFT FUSELAGE, AND AIRCRAFT

    LINDE PETER / HEGENBART MATTHIAS | Europäisches Patentamt | 2023

    Freier Zugriff

    FUSELAGE SECTION OF AN AIRCRAFT, AIRCRAFT FUSELAGE, AND AIRCRAFT

    LINDE PETER / HEGENBART MATTHIAS | Europäisches Patentamt | 2022

    Freier Zugriff