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Study on curved surface design of sliding pair based on stepped topography model

机译:基于阶梯形貌模型的滑动对曲面设计研究

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Purpose The stepped topography of the friction pairs mainly causes the fluid film thickness to change in the direction of motion. In this region, there have very few topographical design methods for continuous or non-linear distribution of the fluid film. The purpose of this study is to analyze the effect of the curved surface on the performance of the liquid film. Design/methodology/approach First, a numerical simulation is used to solve the optimal bearing capacity and friction coefficient of the liquid film under the condition of the minimum film thickness. Then, the curved surface described by the sinusoidal curve equation is applied in the transitional region of maximum and minimum film thickness. The bearing capacity and the friction coefficient of the liquid film are respectively simulated and compared in the same condition of the minimum film thickness. Findings The research results show that the liquid film using the curved surface transition model, the optimal bearing capacity is significantly increased by 32 per cent while the optimal friction coefficient is clearly reduced by 38 per cent in comparison with using stepped surface model. Originality/value The friction pair with curved transition enables better lubrication performance of the liquid film and better adaptability under unstable conditions.
机译:目的,摩擦对的阶梯式地形主要导致流体膜厚度变化在运动方向上。在该区域中,具有很少的地形设计方法,用于流体膜的连续或非线性分布。本研究的目的是分析曲面对液体膜性能的影响。设计/方法/方法首先,使用数值模拟来解决最小膜厚度条件下的液体膜的最佳承载能力和摩擦系数。然后,施加由正弦曲线方程描述的弯曲表面施加在最大和最小膜厚度的过渡区域中。载体容量和液体膜的摩擦系数分别模拟并在最小膜厚度的相同条件下进行比较。结果表明,研究结果表明,使用阶梯式模型的最佳摩擦系数明显增加32%,最佳承载能力明显增加32%。原创性/值与弯曲过渡的摩擦对使得能够更好的液体膜的润滑性能以及在不稳定条件下更好的适应性。

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