SAE Recommended Practice J57a--Sound Level of Highway Truck Tires--specifies that the tests be made using tires inflated to the maximum inflation pressure and loaded to the maximum load as specified by the Tire and Rim Association (T&RA). However, if local load limits preclude the use of the maximum rated load, tests may be conducted using lower loads if the inflation pressure is adjusted either to maintain constant tire deflection or according to the T&RA load/inflation pressure tables. Whether these alternate load/inflation pressure conditions result in similar sound levels is an important question. This report presents acoustic data that allows evaluation of the equivalency of these alternate conditions. In addition, laboratory data on the relationships between load, inflation pressure, and tire deflection are presented.


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    Title :

    Effects of Load, Inflation Pressure and Tire Deflection on Truck Tire Noise Levels


    Contributors:

    Publication date :

    1979


    Size :

    49 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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