An airborne SEA model to predict high frequency interior noise is built for a mid-size sedan. The 60 KPH running condition is simulated based on this model and then the corresponding result is compared to the measured interior noise. A very similar prediction is found. Also, weak points of sound insulation and effective absorption area in this vehicle are identified using the model. It is shown that in an early design stage and when the proto vehicle is not available yet, the airborne SEA model is very useful to find out weak points of vehicle sound packages.


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    Title :

    Prediction and Improvement of High Frequency Road Noise of a Mid-Size Sedan


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2007 Noise and Vibration Conference and Exhibition ; 2007



    Publication date :

    2007-05-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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