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Elastohydrodynamic Lubrication Analysis of Conjugate Meshing Face Gear Pairs

机译：共轭啮合端面齿轮副的弹性流体动力润滑分析

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摘要

This paper investigates the nominal elastohydrodynamic lubrication (EHL) characteristics of the conjugate meshing face gears and predicts the mesh efficiency of the pericyclic transmission system. The meshing face-gear tooth geometries and meshing kinematics are modeled. Hertzian contact and the isothermal non-Newtonian lubricant film characteristics of the meshing face-gear pair are investigated. The friction coefficient is calculated with the effects of lubricant behavior and mesh kinematics. Finally, the pericyclic transmission efficiency is calculated as a function of friction coefficient, mesh loads, and mesh kinematics. The Hertzian contact behavior, film thickness, and friction coefficient values are simulated for an example fixed axis face-gear pair rotating at 1000 rpm with 3.4 kN-m torque. The EHL film thickness ranges from 0.1 to 0.25 μm in this example. The average friction coefficient is predicted as 0.05. The efficiencies of three different 24:1 reduction ratio 760 HP pericyclic transmission designs are investigated. The minimum and maximum efficiency in the given design space are 97% and 98.7%, respectively.
机译：本文研究了共轭啮合平面齿轮的名义弹性流体动力润滑（EHL）特性，并预测了周向传动系统的啮合效率。对啮合的齿轮齿几何形状和啮合运动学进行建模。研究了啮合面齿轮对的赫兹接触和非牛顿等温润滑膜特性。摩擦系数是根据润滑剂行为和啮合运动学的影响来计算的。最后，周向传递效率根据摩擦系数，网格载荷和网格运动学来计算。对于以3.4牛顿-米的扭矩以1000 rpm旋转的示例固定轴齿轮副，模拟了赫兹接触特性，膜厚和摩擦系数值。在该示例中，EHL膜厚度在0.1至0.25μm的范围内。预测平均摩擦系数为0.05。研究了三种不同的24：1减速比760 HP周转变速箱设计的效率。在给定的设计空间中，最小和最大效率分别为97％和98.7％。

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  • 来源
    《Journal of the American Helicopter Society》 |2012年第3期|p.032003.1-032003.10|共10页
  • 作者

    Zihni B. Saribay; Robert C. Bil; Edward C. Smith; Suren B. Rao;

  • 作者单位

    Vertical Lift Research Center of Excellence, Department of Aerospace Engineering The Pennsylvania State University University Park, PA;

    Vertical Lift Research Center of Excellence, Department of Aerospace Engineering The Pennsylvania State University University Park, PA;

    Vertical Lift Research Center of Excellence, Department of Aerospace Engineering The Pennsylvania State University University Park, PA;

    Applied Research Laboratory The Pennsylvania State University University Park, PA;

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