Power loss and load distribution models including frictional effects for spur and helical gears

Friction between meshing gear teeth are amongst the most influential power loss sources in a gearbox near nominal operating conditions. Speed, load and coefficient of friction are some of the most important factors regarding frictional losses in gears. The aim of this work is to introduce gear load sharing models for spur and helical gears taking into account elastic and frictional effects allowing to do more refined estimations of gear friction losses.