Impact of textured surfaces in starved hydrodynamic lubrication
Impact of textured surfaces in starved hydrodynamic lubrication
复制标题
织构表面对饥饿流体动力润滑的影响
DOI：
10.1016/j.triboint.2020.106756
复制
发表时间：
2021-02-01
影响因子：
6.2
通讯作者：
Sugimura, Joichi
中科院分区：
文献类型：
--
作者：
Yagi, Kazuyuki;Matsunaka, Wataru;Sugimura, Joichi
本研究描述了在饥饿流体动力润滑中织构图案对润滑性能的影响。使用包括原位观察系统的摩擦试验台，控制润滑剂量以在凸玻璃透镜和旋转钢盘之间产生点接触。原位观察系统捕获润滑区域周围的弯月面图案以及膜厚度的光学干涉图。与平盘相比，在盘上形成纵向或横向凹槽，这改善了在高滑动条件下润滑区域的润滑剂供应。基于原位观察结果，讨论了通过纹理图案改善润滑剂供应的机制。
This study describes the effect of textured patterns on the lubrication performance in starved hydrodynamic lubrication. A friction test rig including an in-situ observation system is used with controlled lubricant quantity to create point contact between a convex glass lens and rotating steel disc. The in-situ observation system captures the meniscus pattern around the lubricated area as well as optical interferograms of the film thicknesses. Longitudinal or transverse grooves are created on discs, which improve lubricant supply into the lubricated area at high sliding conditions, compared to a flat disc. Mechanisms for improving the lubricant supply through textured patterns are discussed based on the in-situ observation results.