Study on Influence of Diversified Parameters of Vehicle and Track on Wheel Hollow Wear

Table 3

Corresponding sensitivity factor of each factor.

Parameter property name	Unit	Sensitivity factor	Corresponding parameter value
Longitudinal stiffness of tumbler journal box node	MN·m^−1	0.178	24
Lateral stiffness of tumbler journal box node	MN·m^−1	0.057	4.8
Longitudinal stiffness of primary suspension	MN·m^−1	0.059	1.26
Lateral stiffness of primary suspension	MN·m^−1	0.026	0.36
Vertical stiffness of primary suspension	MN·m^−1	0.036	0.6
Longitudinal stiffness of air-spring suspension	MN·m^−1	0.035	0.3
Lateral stiffness of air-spring suspension	MN·m^−1	0.173	0.3
Vertical stiffness of air-spring suspension	MN·m^−1	0.039	0.09
Lateral damping of secondary suspension	kN·s·m^−1	0.111	80
Damping of anti-hunting motion dampers	MN·m·s^−1	1.524	0.3
Lateral stiffness of track	MN·m^−1	0.031	16
Vertical stiffness of track	MN·m^−1	0.123	120
Lateral damping of track	MN·m·s^−1	0.003	19.6
Vertical damping of track	MN·m·s^−1	0.263	37.6