Stiffness Modeling of Tooth Interior Fatigue and Tooth Flank Fracture and Their Fault Characteristics in Electromechanical Coupling Systems

Table 2

Gear parameters.

Gear symbol	Gear 1	Gear 2
Teeth number	21	57
Module (mm)	8
Mass (kg)	1.6	4.14
J (kg·m^2)	0.005	0.095
Bearing stiffness (N/m)	10^9
Bearing damping (N·s/m)	10^4
Mesh damping (N·s/rad)	10^4