This study describes traction behaviours of lubricant films having anomalous shapes under elastohydrodynamic lubrication conditions. The traction generated at a point contact area between a glass or sapphire disc and a steel ball was measured by changing the slide-to-roll ratio. Three alcohols, 1-dodecanol, ethylene glycol and glycerol, and two alkanes of n-tetradecane and n-hexadecane were used as lubricants. Lubricants developing anomalous film shapes exhibited a solid-like behaviour with a sharp traction peak at low slide-to-roll ratios. On the contrary, other lubricants having conventional film shapes indicated a gradual increase in traction coefficient with increasing slide-to-roll ratios. The similarity of the traction behaviour to that of traction fluids supports the solidification of the film, which developed anomalous film shapes.

这项研究描述了在弹性流体动力润滑条件下具有异常形状的润滑膜的牵引行为。通过改变滑动比来测量在玻璃或蓝宝石圆盘与钢球之间的点接触区域产生的牵引力。三种醇，1-十二烷醇，乙二醇和甘油以及两种正十四烷和n烷烃十六烷用作润滑剂。呈现异常薄膜形状的润滑剂表现出类似固体的行为，并在低滑动比下具有明显的牵引峰。相反，具有常规膜形状的其他润滑剂表明牵引系数随着滑动比的增加而逐渐增加。牵引行为与牵引流体的相似性支持了薄膜的固化，从而形成了异常的薄膜形状。