Abstract A considerable number of surface texture investigations is based on pin-on-disc tribometers. This work shows that a crucial role in the reproducibility of the results, e.g. Stribeck curves, is played by the geometry of the pin surface. The investigation is based on an elastohydrodynamic model of a pin-on-disc tribometer which is validated with experimental data. Characteristic roughness and pin shapes are introduced in this model to evaluate the sensitivity of the Stribeck curve to these operating conditions. The obtained significant variations in the friction coefficient indicate that studies which aim at quantifying the influence of surface textures in the mixed lubrication regime need to provide information about the pin geometry in order to enable a meaningful comparison among literature data.

中文翻译：

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Stribeck 曲线对针盘式摩擦计的针几何形状的敏感性

摘要 相当多的表面纹理研究是基于针盘式摩擦计的。这项工作表明，针表面的几何形状对结果的再现性（例如 Stribeck 曲线）起着至关重要的作用。该调查基于销盘式摩擦计的弹性流体动力学模型，该模型已通过实验数据进行验证。该模型中引入了特征粗糙度和销钉形状，以评估 Stribeck 曲线对这些操作条件的敏感性。获得的摩擦系数的显着变化表明，旨在量化混合润滑状态中表面纹理影响的研究需要提供有关销几何形状的信息，以便在文献数据之间进行有意义的比较。