The two-source method was used to measure the bulk properties (complex characteristic impedance and complex wavenumber) of sound-absorbing materials, and results were compared to those obtained with the more commonly used two-cavity method. The results indicated that the two-source method is superior to the two-cavity method for materials having low absorption. Several applications using bulk properties are then presented. These include: (1) predicting the absorptive properties of an arbitrary thickness absorbing material or (2) layered material and (3) using bulk properties for a multi-domain boundary element analysis.


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    Titel :

    Measuring Bulk Properties of Sound-Absorbing Materials Using the Two-Source Method


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Seybert, A. F. (Autor:in) / Herrin, D. W. (Autor:in) / Tao, Z. (Autor:in)

    Kongress:

    SAE 2003 Noise & Vibration Conference and Exhibition ; 2003



    Erscheinungsdatum :

    05.05.2003




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Measuring Bulk Properties of Sound-Absorbing Materials Using the Two-Source Method

    Tao, Z. / Herrin, D. W. / Seybert, A. F. et al. | British Library Conference Proceedings | 2003


    Measuring bulk properties of sound-absorbing materials using the two-source method

    Tao,Z. / Herrin,D.W. / Seybert,A.F. et al. | Kraftfahrwesen | 2003


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