In order to predict cam wear in valve trains of engines quantitatively, multi-body system dynamic analysis, finite element quasi-statics contact analysis and numerical calculation of elastohydrodynamic lubrication are applied to obtain the dynamic loads, the time histories of contact pressure and the oil film thicknesses in a cam-tappet pair. Using this methodology, the wear depth of the cam in the valve train of a heavy load diesel engine is calculated, which is in good agreement with the measured value in the practical tests. The results show that the cam-tappet is operated in a mixed lubricant or a boundary lubricant regime and the wear depths on both the sides of the cam have been found to be the greatest.


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    Titel :

    Simulation of Cam Wear in Valve Trains of Diesel Engines


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    Duan, Lunjing (Autor:in) / Qin, Wenjie (Autor:in)

    Kongress:

    SAE 2014 International Powertrain, Fuels & Lubricants Meeting ; 2014


    Erschienen in:

    Erscheinungsdatum :

    13.10.2014


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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    Boerlage, G.D. / Gravesteyn, B.J.J. | Engineering Index Backfile | 1932


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    Gravesteyn, B. J. J. / Boerlage, G. D. | SAE Technical Papers | 1936