Research on Simplified Calculation Method of Coupled Vibration of Vehicle-Bridge System

Table 2

Vehicle parameters.

Main parameters	Value
Distance of wheel sets (m)	2.5
Distance of bogies (m)	18
Length of each car (m)	26.3
Wheel set mass (kg)	2200
Bogie mass (kg)	3400
Bogie Z-inertia (kg·m^2)	6800
Car body mass (kg)	42400
Car body Z-inertia (kg·m^2)	2740000
Primary suspension z-damp/side (kN-s/m)	40
Secondary suspension z-damp/side (kN-s/m)	45
Primary suspension z-spring/side (MN/m)	1.04
Secondary suspension z-spring/side (MN/m)	0.4