This work has for purpose to develop a mathematical model for the hydrodynamic lubrication of bearings with oscillating motion. The motivation lies in the tribology of internal combustion engines, specifically the lubrication problem at the bearing existing between the connecting rod and the piston pin. This kind of bearing does not perform a complete rotation, thus characterizing a new class of oscillating motion bearings. For the analysis of lubrication, a viscous fluid flow with negligible inertia inside a narrow gap formed by two surfaces is considered. The surfaces can be considered flat and are inclined to each other. The inner surface is fixed whereas the outer one performs an oscillating motion which generates a combined Couette-Poiseuille flow inside the gap. Using the same assumptions as in classical Reynolds' lubrication equation, the simplified mass and momentum conservation equations are analytically solved to determine the velocity and pressure distributions. It is shown that at the limit when the oscillation frequency tends to zero, these distributions give Reynolds' results back. The forces on the inner surface are obtained and shown in graphical form.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hydrodynamic Lubrication Applied to Bearings with Oscillating Motion in Internal Combustion Engines


    Additional title:

    Sae Technical Papers



    Conference:

    SAE Brasil 2005 Congress and Exhibit ; 2005



    Publication date :

    2005-11-22




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    SLEEVE BEARINGS FOR INTERNAL COMBUSTION ENGINES

    McCulla, W.J. | SAE Technical Papers | 1947


    Hydrodynamic Lubrication Evaluation of Thrust Bearings

    Vieira, L.C. / Cavalca, K.L. / Nomura, P.O. et al. | British Library Conference Proceedings | 2008


    Hydrodynamic Lubrication Evaluation of Thrust Bearings

    Cavalca, Katia Lucchesi / Vieira, Leonardo Carpinetti / Nomura, Paula Okura | SAE Technical Papers | 2010


    Hydrodynamic lubrication of cyclically loaded bearings

    Dayton, R. W. / Simons, E. M. | TIBKAT | 1951