A textured surface with oil inflow and outflow function designed for starved lubrication

Authors：Wang, Wei; Zhao, Wenhan; Guo, Peizhe; Liu, Qi; Kouediatouka, Ange Nsilani; Dong, Guangneng^*

Source：Tribology International, 2023, 184: 108450.

DOI：10.1016/j.triboint.2023.108450

• Starved lubrication
• Pocket-textured surface
• Tribology
• Elastic deformation

This study presents a surface, referred as 'pocket-textured surface', which combines traditional surface texture with the oil storage pocket that can improve the tribological performance of line contact under extremely starved lubrication conditions. The pocket-textured surface has up to 48% lower friction coefficient than the untextured surface with the same little lubricant supply. Tribological experiments were carried out to explore the tribo-logical behavior of pocket-textured surfaces with different ratios of texture hole depth and oil pocket depth under different loads and sliding speeds. In addition, a high-speed camera observed the lubricant inflow and outflow, and Ansys simulation calculated the deformations and pressures of the pocket-textured surface.

• Institution
  西安交通大学