Helical Gear Wear Prediction Under the Mixed Elastohydrodynamic Lubrication Regime

To monitor the gradual wear process of gears, behavior at different lifetime phases has to be fully understood in theory. The traditional Archard’s model was mainly developed for dry contact. However, most gear transmission systems, gears normally work under mixed EHL regime, and two contact surfaces are separated by a thin film avoid asperity Therefore, is inappropriate estimate depth lubricated Moreover, numerical simulation helical rarely studied because time-varying characteristics. simulate more realistic, regarded as combination number spur with continuous angle. By estimating each slice gear, can achieved. Besides, this paper employs modified which suitable regime. In model, pressure derived from Hertzian theory, both friction effect, temperature, surface roughness, load sharing, lubricant characteristics were considered realistic operating conditions. sliding distance meshing position determined single point observation method. results illustrate that simulated regime much lower than condition, good accordance lubrication addition, increases but decreases speed.