Pipes with porous (permeable) walls have received the attention of several authors as a noise control element in automotive intake systems; however, a closed theory of sound transmission including the effect of the coupling of the internal and external acoustic fields and the presence of mean flow does not appear to be available. The present paper proposes an integro-differential system for the propagation of plane sound waves in pipes with porous walls, and presents its general numerical solution, as well as an approximate analytical solution. The predicted effect of the coupling between the internal and external acoustic fields in a circular pipe made of reinforced woven fabric walls is shown, and the transmission loss predictions are compared with the existing experimental data in the literature.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Sound transmission in pipes with porous walls


    Additional title:

    Schallübertragung in Rohren mit porösen Wänden


    Contributors:

    Published in:

    Journal of Sound and Vibration ; 329 , 25 ; 5346-5355


    Publication date :

    2010


    Size :

    10 Seiten, 6 Bilder, 7 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Sound transmission in pipes with porous walls

    Dokumaci, E. | Online Contents | 2010


    SOUND TRANSMISSION THROUGH DUCT WALLS

    Cummings, A. | Online Contents | 2001


    Sound transmission through dry lined walls

    Wilson, R. | Online Contents | 1996


    Sound transmission through masonry cavity walls

    Craik, R.J.M. | Online Contents | 1995