Spiral bevel gears are commonly used in heavy-duty trucks and buses. An integrated dynamic model of the spiral bevel gears with mixed elastohydrodynamic lubrication is proposed in this study. First, loaded tooth contact analysis was performed to evaluate the kinematic parameters and calculate the mesh force variation for one mesh cycle. These kinematic quantities are used in the mixed elastohydrodynamic lubrication (EHL) calculation to determine the EHL parameters such as pressure, film thickness, and shear distribution considering the surface roughness profile of the spiral bevel gears. Then, the EHL pressure and film thickness are used in the calculation of the coefficient of friction, damping, and oil film elastohydrodynamic lubrication stiffness. Last, these tribological parameters are used in the dynamic calculation of the spiral bevel gears. The calculated tribodynamic response of the spiral bevel gears are compared for different dynamic models and the influence of lubrication on the gear dynamic responses is discussed.


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    Title :

    Tribodynamics of Spiral Bevel Gears under Mixed Elastohydrodynamic Lubrication


    Additional title:

    Sae Technical Papers



    Conference:

    Noise and Vibration Conference & Exhibition ; 2023



    Publication date :

    2023-05-08




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English