The one-dimensional (1-D) time-domain approach and the three-dimensional finite element method (FEM) are used to predict and analyze the acoustic attenuation performance of three-pass perforated tube mufflers with and without end-resonator. For the given muffler configurations, the transmission loss results obtained from the 1-D time-domain approach agree reasonably well with the FEM predictions within the plane wave region, while the 1-D results derive the FEM predictions at higher frequencies. The FEM is then used to investigate the effects of internal structure on the acoustic attenuation performance of the mufflers, while the 1-D time-domain approach is employed to examine the influence of high temperature gas flow on the acoustic attenuation performance of the mufflers within the plane wave region.


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    Title :

    Acoustic Attenuation Performance Analysis of Three-pass Perforated Tube Muffler with End-resonator


    Additional title:

    Sae International Journal of Passenger Cars. Mechanical Systems
    Sae Int. J. Passeng. Cars – Mech. Syst


    Contributors:
    Liu, Chen (author) / Su, Shengli (author) / Ji, Zhenlin (author)

    Conference:

    SAE World Congress & Exhibition ; 2008



    Publication date :

    2008-04-14


    Size :

    9 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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