Effect of the slide-roll ratio on point contact EHL under oil droplet supply

摘要

Under oil droplet supply a simplified elastohydrodynamic lubrication (EHL) model incorporating slide-roll ratios has been established, and the lubrication behavior of one oil droplet passing through the contact zone was numerically simulated. The results showed that sliding elongates the oil droplet and the oil reservoir at the inlet, and thus the effective lubrication can be enhanced. However if the slide-roll ratio is too large lubrication failure may occur. The effect of the slide-roll ratio is markedly influenced by lubrication parameters eta(0)u(e), and the increase of eta(0)u(e) leads to a decrease in the effective lubrication time. Heavy load reduces the effective lubrication time.