This project deals with developing advanced methods for investigating and controlling interior noise in aircraft. The work concentrates on developing and applying the techniques of Near Field Acoustic Holography (NAH) and Principal Component Analysis (PCA) to the aircraft interior noise dynamic problem. This involves investigating the current state of the art, developing new techniques and then applying them to the particular problem being studied. The knowledge gained under the first part of the project was then used to develop and apply new, advanced noise control techniques for reducing interior noise. A new fully active control approach based on the PCA was developed and implemented on a test cylinder. Finally an active-passive approach based on tunable vibration absorbers was to be developed and analytically applied to a range of test structures from simple plates to aircraft fuselages.


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    Title :

    Diagnostics and Active Control of Aircraft Interior Noise


    Contributors:

    Publication date :

    1998-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    INTEGRATED ACTIVE SYSTEMS FOR AIRCRAFT INTERIOR NOISE CONTROL

    Maier, R. / Petitjean, B. / International Council of the Aeronautical Sciences | British Library Conference Proceedings | 2004


    Aircraft interior acoustic noise control

    Copley-Woods, Djuna S. (Djuna Sunlight), 1977- | DSpace@MIT | 1999

    Free access

    Aircraft interior noise

    Wilby, J.F. | Tema Archive | 1996


    Aircraft interior noise

    Wilby, J.F. | Online Contents | 1996