A recently developed superposition approach for determining the insertion loss of a two-inlet muffler is reviewed. To validate the approach, calculated and measured insertion losses are compared for a small engine muffler with two inlets and one outlet. After which, the phasing between the two inputs is varied and the insertion loss is evaluated. Results show that the insertion loss is strongly affected by the phasing between sources at low frequencies while phasing between sources has a lesser impact at high frequencies. At the conclusion of the paper, the theory for applying the superposition approach to transmission loss is reviewed.


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    Titel :

    The Effect of Phase Difference between Inputs on Insertion Loss for a Two-Inlet Muffler


    Weitere Titelangaben:

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


    Beteiligte:
    Herrin, David W. (Autor:in) / Hua, Xin (Autor:in) / Zhang, Yitian (Autor:in)

    Kongress:

    SAE 2015 Noise and Vibration Conference and Exhibition ; 2015



    Erscheinungsdatum :

    2015-06-15


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    The Effect of Phase Difference between Inputs on Insertion Loss for a Two-Inlet Muffler

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    Herrin, D. W. / Chen, Jonathan | SAE Technical Papers | 2019


    Development of a Muffler Insertion Loss Flow Rig

    Chen, Jonathan / Herrin, D. W. | British Library Conference Proceedings | 2019



    Prediction of Muffler Insertion Loss by a Hybrid FE Acoustic-SEA Model

    Labyak, David / Pruetz, Jeff / Mattson, Steven G. et al. | SAE Technical Papers | 2009