The paper presented a correlation work between the GM and Goodyear acoustical laboratories to determine the tire noise load cases used for vehicle tire noise allocation and high-frequency airborne noise analysis. A large group of tires with different sizes were tested in the two labs to examine the lab-to-lab load cases differences in terms of near-field sound intensity and far-field sound power. A good agreement was found for the noise ranking between the two labs by 1/3 octave band and overall A-weighted sound intensity and sound power. The correction factors could be determined from one lab to another as well as from the near-field sound intensity to the far-field sound power. The discrepancies were investigated by comparing the two fixtures and two dyno shell profiles. The differences in 1/3 octave band sound measurement between the two labs were found to be contributed mainly by the shell profiles.


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    Titel :

    Lab-to-Lab Correlation for Tire Noise Load Cases


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Yan, Dinghong (Autor:in) / Zhu, Jason (Autor:in) / Roggenkamp, Tim (Autor:in)

    Kongress:

    SAE 2003 Noise & Vibration Conference and Exhibition ; 2003



    Erscheinungsdatum :

    2003-05-05




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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