A new laboratory method has been developed to evaluate the acoustical properties of expandable and other automotive sealants. These materials are used to reduce wind, road, and powertrain noise transmission into passenger compartments. In the new method, ASTM E 1050 absorption measurement equipment is used along with a new sample holder, a downstream microphone holder (providing two additional microphone locations) and an anechoic termination. These additions permit measurement of normal incidence transmission loss as well as absorption. It is intended to encourage adoption of this method as a standard way of quantifying the acoustical performance of sealants and sealing composites in automotive noise control applications.


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    Title :

    Development of a New Sound Transmission Test for Automotive Sealant Materials


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Noise and Vibration Conference and Exposition ; 1997



    Publication date :

    1997-05-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of a New Sound Transmission Test for Automotive Sealant Materials

    Stuart Bolton, J. / Yun, R. J. / Pope, J. et al. | British Library Conference Proceedings | 1997


    Development of a new sound transmission test for automotive sealant materials

    Bolton,J.S. / Yun,R.J. / Pope,J. et al. | Automotive engineering | 1997


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