A novel test method has been used to study how applied and natural lubrication (leaf and humidity) influences the coefficient of friction in the wheel-rail contact. A pin-on-disc tribometer placed in a climate chamber was used as the test equipment. The pin-on-disc contact simulates the wheel-rail contact caused by commuter train traffic on straight track. The results show that the coefficient of friction decreases when the relative humidity increases and decreases even more when a leaf is used as a lubricant. By using an elm leaf as the lubricant, the coefficient of friction is reduced by a factor of four compared with the unlubricated case. However, the coefficient of friction decreases even more when a rail lubricant is used.


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    Titel :

    Influence of leaf, humidity and applied lubrication on friction in the wheel-rail contact: Pin-on-disc experiments


    Weitere Titelangaben:

    Auswirkung von Blättern, Feuchtigkeit und Schmiermitteln auf die Reibung bei Rad-Schiene-Kontakt: Stift-auf-Scheibe-Versuche


    Beteiligte:
    Olofsson, U. (Autor:in) / Sundvall, K. (Autor:in)


    Erscheinungsdatum :

    2004


    Format / Umfang :

    8 Seiten, 18 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch