This paper discusses the importance of the spectral distribution of the energy in the sound to the dB(A) level of the usual passby test. A described technique obtains reproducible “real-time” spectra from the nonstationary sound field. Doppler effect and source frequency shift are quantified in relating these spectra to the tread pattern repetitions. Inverse square law fitting is viewed through the two-source-microphone relation which changes during the spectral window period. Spectra are shown for 6, 12, and 50 ft (1.83, 3.66, and 15.2 m) passby microphones and for a microphone carried on the truck.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Spectral Analyses in Truck Tire Noise Fields


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    National West Coast Meeting ; 1974



    Publication date :

    1974-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    TRUCK TIRE NOISE

    ROBERTSON, T. A. | SAE Technical Papers | 1957


    Truck tire noise

    Robertson, T.A. | Engineering Index Backfile | 1957


    Truck tire noise

    Society of Automotive Engineers | TIBKAT | 1972


    Truck Tire Vibration Noise

    Eberhardt, Allen C. / Reiter, William F. | SAE Technical Papers | 1974


    Retreaded Truck Tire Noise Tests

    Burche, Ioan / Raabe, Ralph C. | SAE Technical Papers | 1974