It is difficult to improve tire cavity noise since the pressure of cavity resonance acts as a compelling force, and its low damping and high gain characteristics dominate the vibration of both the suspension and body. For this reason, the analysis described in this article aimed to clarify the design factors involved and to improve this phenomenon at the source. This was accomplished by investigating the acoustic coupling vibration mode of the wheel, which is the component that transmits the pressure of cavity resonance at first. In addition, the vibration characteristic of suspension was investigated also. A speaker-equipped sound pressure generator inside the tire and wheel assembly was developed and used to infer that wheel vibration under cavity resonance is a forced vibration mode with respect to the cavity resonance pressure distribution, not an eigenvalue mode, and this phenomenon may therefore be improved by optimizing the out-of-plane torsional stiffness of the disk. This inference was then verified on a car in actual driving conditions. And by analyzing suspension mode, it was clarified that the important mode of suspension is the camber direction resonance.


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    Title :

    Experimental Analysis of Acoustic Coupling Vibration of Wheel and Suspension Vibration on Tire Cavity Resonance


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2007 Noise and Vibration Conference and Exhibition ; 2007



    Publication date :

    2007-05-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Experimental Analysis of Acoustic Coupling Vibration of Wheel and Suspension Vibration on Tire Cavity Resonance

    Hayashi, T. / Society of Automotive Engineers | British Library Conference Proceedings | 2007


    Vibration coupling analysis of tire/wheel and suspension

    Kido, I. / Nakamura, A. / Komada, M. et al. | Tema Archive | 2000


    Vibration coupling analysis of tire / wheel and suspension

    Kido,I. / Nakamura,A. / Komada,M. et al. | Automotive engineering | 2000


    Vibration coupling analysis of tire/wheel and suspension

    Kido, I. / Nakamura, A. / Komada, M. et al. | British Library Conference Proceedings | 2000