Dynamic Characteristics of Spur Gear Pair with Dynamic Center Distance and Backlash

Table 1

Parameters of the gear-bearing system.

Parameter	Symbol	Numerical value
Pressure angle		20°
Moment of inertia	/	0.041/0.079 kg·m^2
Mass	/	1.53/3.01 kg
Stiffness of bearings	k1/k2	2/2×10^8 N·m^−1
Meshing stiffness	km	7.74×10^8 N·m^−1
Teeth	z1/z2	55/75
Modulus	m	2
Phase angle of meshing stiffness coefficient		0
Phase angle of the transmission error		0
Transmission error		1×10^−5 m
Half-backlash value		2×10^−5 m
Driving torque		22 N·m
Loading torque		30 N·m
Meshing damping ratio		0.07
Contact damping ratio		0.07