OEMs are racing to develop lightweight vehicles as government regulations now mandate automakers to nearly double the average fuel economy of new cars and trucks by 2025. Lightweight materials such as aluminum, magnesium and carbon fiber composites are being used as structural members in vehicle body and suspension components. The reduction in weight in structural panels increases noise transmission into the passenger compartment. This poses a great challenge in vehicle sound package development since simply increasing weight in sound package components to reduce interior noise is no longer an option [1]. This paper discusses weight saving approaches to reduce noise level at the sources, noise transmission paths, and transmitted noise into the passenger compartment. Lightweight sound package materials are introduced to treat and reduce airborne noise transmission into multi-material lightweight body structure.


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    Title :

    Sound Package Design for Lightweight Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:
    Pan, Jian (author) / Gur, Yuksel (author)

    Conference:

    SAE 2015 Noise and Vibration Conference and Exhibition ; 2015



    Publication date :

    2015-06-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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