Thermal elastohydrodynamic simulation of involute spur gears incorporating mixed friction

► Transient, three-dimensional thermal elastohydrodynamic calculation of tooth flank contacts in spur gears. ► Incorporating mass conserving cavitation, non-Newtonian flow and the real involute characteristics of the tooth flanks. ► States of mixed friction and microhydrodynamics based on real measured surface topographies. ► Calculation examples to show the influence of surfaces roughness, addendum modification and tooth trace correction.