In automotive industry, all passenger vehicles are treated with damping materials to reduce structure borne noise. The effectiveness of damping treatments depends upon design parameters such as choice of damping materials, locations and size of the treatment. This paper proposes a CAE (Computer Aided Engineering) methodology based on finite element analysis to optimize damping treatments. The developed method uses modal strain-energy information of bare structural panels to identify flexible regions, which in turn facilitates optimization of damping treatments with respect to location and size. The efficacy of the method is demonstrated by optimizing damping treatment for a full-size pick-up truck. Moreover, simulated road noise performances of the truck with and without damping treatments are compared, which show the benefits of applying damping treatment. Finally, the optimized damping-treatment configuration is validated by comparing the locations and the size of the treatment with that of a laser vibro-meter test conducted on body-in-white (BIW) structure of the truck. The paper also presents a brief discussion of a few other applications in which the proposed method has been applied successfully at DamilerChrysler Corporation in optimizing damping treatments.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Optimization of Damping Treatment for Structure Borne Noise Reduction


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Thomson, K. R. (Autor:in) / Surampudi, R. (Autor:in) / Subramanian, S. (Autor:in) / Vallurupalli, S. (Autor:in)

    Kongress:

    SAE 2003 Noise & Vibration Conference and Exhibition ; 2003



    Erscheinungsdatum :

    2003-05-05




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Optimization of damping treatment for structure borne noise reduction

    Subramanian,S. / Surampudi,R. / Thomson,K.R. et al. | Kraftfahrwesen | 2003



    Structure-borne noise reduction by active damping of a radiating panel

    Bell,J.A. / Kashani,A.R. / Michigang Technological Univ.,US et al. | Kraftfahrwesen | 1995


    Structure-Borne Noise Reduction by Active Damping of a Radiating Panel

    Kashani, A. Reza / Bell, James A. | SAE Technical Papers | 1995


    Structure-Borne Noise Reduction by Active Damping of a Radiating Panel

    Bell, J. A. / Reza Kashani, A. / Society of Automotive Engineers | British Library Conference Proceedings | 1995