This paper presents the results of acoustic analyses of light duty truck cabs by actual vehicle testing and by numerical analysis utilizing the boundary element method (BEM).In the resonance mode analysis using BEM, by taking into account the vibration characteristics of cab panels, the presence of the modes other than the purely acoustic cavity resonance modes were confirmed.The contribution of the panel vibrations to booming noise that occurs in actual light duty trucks was analyzed. BEM analysis showed that some of the panel vibration had a negative contribution to booming noise. In other words, decreasing vibration in such a section was shown to increase sound pressure. The results of the BEM analysis match well with actual test results.It has thus been demonstrated that BEM is an effective method for analyzing truck interior noise reduction.


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    Title :

    Acoustic Analysis of Truck Cab


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Noise & Vibration Conference & Exposition ; 1991



    Publication date :

    1991-05-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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