This paper discusses an empirical method for predicting the Sound Transmission Loss (STL) performance of Sound Barrier Assembly (SBA) materials that are commonly used in the automotive industry. The prediction method is based on basic STL theories of single and double-wall systems, in conjunction with the double wall resonance and the standing wave resonance between the two walls. In addition, a practical technique for determining the acoustical influence of the decoupler in a double-wall system is proposed. When all these considerations are put together properly, one gets a much clearer picture of the STL characteristics of typical double wall systems, and understands how the barrier and decoupler together affect the STL performance. The validity of the empirical prediction method is substantiated by comparing predictions with measured results of more than 60 samples.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Empirically Predicting the Sound Transmission Loss of Double-Wall Sound Barrier Assemblies


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Noise and Vibration Conference and Exposition ; 1995



    Publication date :

    1995-05-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Empirically Predicting the Sound Transmission Loss of Double-Wall Sound Barrier Assemblies

    Wentzel, R. E. / Saha, P. / Society of Automotive Engineers | British Library Conference Proceedings | 1995


    Empirically predicting the sound transmission loss of double-wall sound barrier assemblies

    Wentzel,R.E. / Saha,P. / Ford Motor,US et al. | Automotive engineering | 1995


    Sound transmission loss prediction of double-wall barrier assemblies

    Wentzel, R.E. / Saha, P. | Tema Archive | 1997


    Use of Statistical Energy Analysis Method to Predict Sound Transmission Loss of Sound Barrier Assemblies

    Tao, David / Kathawate, Gururaj / Liu, Wenlung | SAE Technical Papers | 1999