Numerical Analysis of Plastic Gear Stiffness

This paper established practical 3-D gear models to study the stiffness influe ncing factors of a loaded gear by finite element method, such as friction parameters, material properties, an d gear structures. The research shows that, in elastic deformation, gear stiffness increases when sliding frict ion ability of contact pair decreases; meanwhile, the gear structure, especially asymmetric design in gear' s shaft direction will also decrease gear stiffness.