The Calspan Advanced Tire Research Facility was used to measure, under controlled laboratory conditions, the braking traction coefficients of ASTM E501 tires as a function of tread depth, velocity and water film thickness. Data were collected using shaved and used (road worn) tires in the slip ratio range from 0 to -1. At constant speed, braking traction coefficients for shaved tires linearly decreased with decreasing tread depth with the rate of loss of traction increasing with velocity and water film thickness. Test results for the used tires did not correlate with those for the shaved tires. Braking traction coefficients for the former exhibited no consistent sensitivity to tread depth at constant speed. The report discusses certain aspects of the tire specimens which may have affected the test results and presents recommendations for mitigating these conditions in future tests.


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    Titel :

    Effect of Tire Wear on Skid Resistance


    Beteiligte:
    I. Gusakov (Autor:in) / G. A. Tapia (Autor:in) / L. Bogdan (Autor:in)

    Erscheinungsdatum :

    1977


    Format / Umfang :

    50 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Effect of tire wear on skid resistance : July 1977 fina report

    Gusakov, I. ;Tapia, G. A. ;Bogdan, L. | SLUB | 1977


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