This paper discusses the development of a small sample test facility for properly evaluating the low frequency noise control performances of various automotive acoustical materials. Based on several tests conducted with 0.61 m (24 in) diameter samples, this facility is designed to operate in the frequency range of 35 Hz to 355 Hz. Near-field root-mean-square acoustic pressure and acoustic velocity were measured for this purpose, using a dual microphone probe. This methodology allows one to test acoustical materials without elaborate test facilities and without the need for any special acoustic test environment.


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    Titel :

    Developing a Small Sample Facility for Testing Automotive Acoustical Materials at Low Frequencies


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Davis, Charles W. (Autor:in) / Saha, Pranab (Autor:in)

    Kongress:

    Passenger Car Meeting & Exposition ; 1982



    Erscheinungsdatum :

    01.02.1982




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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