In this paper, a method for minimizing the sound transmitted through a composite panel is presented. The panel models a trim panel of an aircraft and is mounted on a stiffened fuselage skin section. The method minimizes sound transmission by minimizing the volume velocity of segments of the panel. For each segment, an array of accelerometers is used to sense the panel's volume velocity while a loudspeaker is used to produce an equivalent, but out-of-phase, volume velocity for control. Analytical models are presented which show sound power reductions of 15 to 25 dB are possible at single frequencies. Experiments using an open loop SISI controller, conducted in the CAV's transmission loss chamber verify these results.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Design of adaptive panels with high transmission loss characteristics


    Additional title:

    Entwicklung von adaptiven Verbundplatten mit hohem Übertragungsverlust


    Contributors:


    Publication date :

    1995


    Size :

    4 Seiten, 47 Bilder, 10 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design of adaptive panels with high transmission loss characteristics

    St, Jr., Richard / Chen, Weicheng / Koopmann, Gary | AIAA | 1996


    Predictive Models of Transmission Loss of Panels with Multi-Layer Treatments

    McCulloch, C. F. / Cremers, L. / Guisset, P. et al. | British Library Conference Proceedings | 2000


    Predictive models of transmission loss of panels with multi-layer treatments

    McCulloch,C.F. / Cremers,L. / Guisset,P. et al. | Automotive engineering | 2000


    Noise Transmission Characteristics of Aircraft-Type Composite Panels

    Grosveld, Ferdinand W. / Metcalf, Vern L. | SAE Technical Papers | 1985


    Light Transmission Control Technique and Correlation with Pressure Loss Characteristics of Perforated Panels for Hybrid Laminar Flow Applications

    Paluch, B. / Confederation of European Aerospace Societies / Deutsche Gesellschaft fur Luft- und Raumfahrt- Lilienthal Overth e.V | British Library Conference Proceedings | 2001