Real-time external alteration of the internal properties of lubricants is highly desirable in all mechanical systems. However, fabricating a suitable and effective smart lubricant is a long-lasting experimental process. In this study, the film thickness and frictional response of ionic liquid-lubricated non-conformal contacts to an electric field excitation under elastohydrodynamic conditions were examined. Film thickness was evaluated using a “ball-on-disc” optical tribometer with an electric circuit. Friction tests were carried on a mini traction machine (MTM) tribometer with a “ball-on-disc” rotation module and an electric circuit for contact area excitation. The results demonstrate that there is a difference in the behaviour of the ionic liquid during electric field excitation at the evaluated film thicknesses. The results of evaluated film thicknesses demonstrate that there is a difference in the behaviour of the ionic liquid during electric field excitation. Therefore, the ionic liquids could be a new basis for the smart lubrication of mechanical components. Moreover, the proposed experimental approach can be used to identify electrosensitive fluids.

中文翻译：

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电场激活下非保形EHL触点中离子液体的摩擦学性能研究

在所有机械系统中，都非常需要对润滑剂的内部特性进行实时外部更改。但是，制造合适且有效的智能润滑剂是一项长期的实验过程。在这项研究中，研究了在弹性流体动力条件下离子液体润滑的非共形接触的膜厚和对电场激励的摩擦响应。使用带电路的“圆盘式”光学摩擦计评估膜厚。摩擦试验是在带有“圆盘式”旋转模块和接触面积激励电路的微型牵引机（MTM）摩擦计上进行的。结果表明，在评估的膜厚度下，电场激励期间离子液体的行为存在差异。评估的膜厚度的结果表明，在电场激发过程中离子液体的行为存在差异。因此，离子液体可能成为机械部件智能润滑的新基础。此外，提出的实验方法可用于识别电敏感流体。