In the case of a rolling pneumatic tyre, the existence of an adequate micro-roughness at the tips of road surface asperities is essential to provide adhesion between tyre tread elements and road under wet conditions. In the absence of this micro-roughness, the slipping rubber in the contact area generates hydrodynamic pressure wedges on individual asperities of the road texture tending to entrain a liquid film over asperity peaks. Such elastohydrodynamic action separates tyre tread and surface locally and produces a dangerous condition known as viscous hydroplaning. A criterion for establishing the size of micro-roughness necessary for counteracting this phenomenon is obtained from the corresponding elastohydrodynamic film thickness which would exist in the case of smooth asperity peaks. (Wassmann)


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    Titel :

    Tyre traction under elastohydrodynamic conditions


    Weitere Titelangaben:

    Zugkraft des Reifens bei elastohydrodynamischen Bedingungen


    Beteiligte:
    Moore, D.F. (Autor:in)


    Erscheinungsdatum :

    1981


    Format / Umfang :

    7 Seiten, 6 Bilder, 1 Tabelle, 6 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Moore,D.F. / Univ.College Dublin,IE | Kraftfahrwesen | 1991




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