The introduction of a thin fluid layer between two layers of sheet metal offers a highly effective and economical alternative to the use of constrained viscoelastic damping layers in sheet metal structures. A diesel engine gear cover, which is constructed of two sheet metal sections spot welded together, takes advantage of fluid layer damping to produce superior vibration and sound radiation performance. In this paper, the bending of a double layered plate coupled through a thin fluid layer is modeled using a traveling wave approach which results in a impedance function that can be used to assess the vibration and sound radiation performance of practical double layered plate structures. Guided by this model, the influence of fluid layer thickness and inside-to-outside sheet thickness is studied.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Vibrational and Sound Radiation Properties of a Double Layered Diesel Engine Gear Cover


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Noise & Vibration Conference & Exposition ; 1999



    Publication date :

    1999-05-17




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Vibrational and sound radiation properties of a double layered diesel engine gear cover

    Welsh,D.A. / Evensen,H.A. / Michigan Technological Univ.,US | Automotive engineering | 1999


    IMPROVEMENT OF SOUND ABSORPTION MATERIAL FOR DIESEL ENGINE COVER

    Calcada, M. / Rocha, T.L. / Society of Automotive Engineers | British Library Conference Proceedings | 2009


    Improvement of Sound Absorption Material for Diesel Engine Cover

    Calçada, Márcio / Rocha, Téo Lenquist | SAE Technical Papers | 2009


    Perception of Diesel Engine Gear Rattle Noise

    Sobecki, Brandon / Davies, Patricia / Bolton, J. Stuart et al. | British Library Conference Proceedings | 2015


    Perception of Diesel Engine Gear Rattle Noise

    Sobecki, Brandon / Eberhardt, Frank / Bolton, J Stuart et al. | SAE Technical Papers | 2015