Most NVH engineers are interested in the identification of vibration transmission paths such as engine mounts to effectively reduce noise in a vehicle. To identify the contribution of each vibration source and transmission path to interior noise, effectiveness( newly defined in this paper ) is calculated. Sensitivities of interior noise levels of a vehicle to force level transmitted from the engine are calculated. When the magnitudes and phases of forces due to engine vibration are changed, synthesized noise level of a vehicle is predicted on a vector synthesis diagram. It is shown that sensitivity analysis and vector synthesis can be used to predict and control the interior booming noise of a vehicle.


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    Title :

    The Booming Noise Reduction of a Vehicle Using Effectiveness Analysis


    Additional title:

    Sae Technical Papers


    Contributors:
    Lee, Hae S. (author) / Oh, Jae-Eung (author) / Cho, Jun H. (author) / Kim, Tae U. (author)

    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




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