Transient Elastohydrodynamic Lubrication Analysis of Spur Gear Running-in Considering Effects of Solid Particles

摘要

The elastohydrodynamic lubrication model considering solid particles was set up. Taking effect of solid particles into account, the Reynolds equation was deduced. The elastohydrodynamic lubrication analysis of spur gear running-in was completed considering time-variant effect. Results show that oil film pressure in region 2 where particle is located increases dramatically but oil film thickness in region 2 decreases thinking about effects of solid particles. When particle size becomes greater oil film pressure increases obviously, oil film thickness diminishes. The minimum film thickness and maximum film pressure both diminish considering effects of solid particles.