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    SAE

    SAE 2009-01-2104 : 2009

    Modeling and Experimental Investigation of Tire Cavity Noise Generation Mechanisms for a Rolling Tire

    Standard Details

    Tire cavity noise refers to the excitation of the acoustic mode of a tire cavity. The noise exhibits itself as sharp resonance-like peaks with frequencies typically in the range of 190-250Hz. For a rolling tire, the tire contact with the road moves relative to the tire. Furthermore, the load on the tire breaks the circular symmetry of the tire. Consequently, the peak frequency of the cavity noise shows dependence on the tire load and the vehicle speed. There are no models that simultaneously take these two factors into consideration. In this paper, we propose an analytical model and present experimental verifications of predictions on the noise peak frequency and its dependence on the tire load and vehicle speed. A wireless experimental measurement system is also presented which enables the measurement of tire cavity frequency for both non-rolling and rolling conditions. The results of this study show that this analytical model can be used to predict tire cavity noise frequency for a rolling tire to avoid the potential modal alignment issue for a tire/wheel assembly in the early design stage.

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    General Information

    Status : ACTIVE
    Standard Type: Main
    Document No: SAE 2009-01-2104 : 2009
    Document Year: 2009
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    SAE 2009-01-2104 : 2009
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