Discussion on & ldquo;Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc & rdquo; by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021

摘要

Liu et al. recently published a study on friction in heavily loaded lubricated contacts. They compare measurements obtained from tests carried out on two tribometers, at constant entrainment speed, temperature and contact pressure. They observe deviations they attribute to the influence of scale and contact geometry effects.