A structural-acoustic finite element model of an automotive vehicle is developed and applied to evaluate the effect of structural and acoustic modifications to reduce low-frequency ‘boom’ noise in the passenger compartment. The structural-acoustic model is developed from a trimmed body structural model that is coupled with an acoustic model of the passenger compartment and trunk cavities. The interior noise response is computed for shaker excitation loads at the powertrain mount attachment locations on the body. The body panel and modal participation diagrams at the peak response frequencies are evaluated. A polar diagram identifies the dominant body panel contributions to the ‘boom’ noise. A modal participation diagram determines the body modes that contribute to the ‘boom’ noise. Finally, structural and acoustic modifications are evaluated to determine their effect on reducing the ‘boom’ noise and on the overall lower-frequency sound pressure level response.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Structural-Acoustic Analysis of Vehicle Body Panel Participation to Interior Acoustic Boom Noise


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lingala, Hari (Autor:in) / Mundy, Lee (Autor:in) / Sung, Shung (Autor:in) / Chao, Sung (Autor:in)

    Kongress:

    SAE 2011 World Congress & Exhibition ; 2011



    Erscheinungsdatum :

    12.04.2011




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Structural-Acoustic Analysis of Vehicle Body Panel Participation to Interior Acoustic Boom Noise

    Sung, S. / Chao, S. / Lingala, H. et al. | British Library Conference Proceedings | 2011


    Reduction of vehicle interior noise using structural-acoustic sensitivity analysis methods

    Hagiwara,I. / Ma,Z.D. / Arai,A. et al. | Kraftfahrwesen | 1991


    Reduction of vehicle interior noise using structural-acoustic sensitivity analysis methods

    Hagiwara, I. / Ma, Z.D. / Arai, A. et al. | Tema Archiv | 1991


    Reduction of Vehicle Interior Noise Using Structural-Acoustic Sensitivity Analysis Methods

    Arai, Akira / Hagiwara, Ichiro / Nagabuchi, Kazuo et al. | SAE Technical Papers | 1991


    An Application of Structural-Acoustic Coupling Analysis to Boom Noise

    Yamazaki, Ichiro / Inoue, Takeshi | SAE Technical Papers | 1989