Vertical Suspension Optimization for a High-Speed Train with PSO Intelligent Method

Table 2

Parameters of the 10-DOF high-speed train vertical model.

Symbol	Parameter	Unit	Value
V	Speed	m/s	97.22
m c	Train body mass	kg	43862.5
J c	Train body pitch inertia	kg·m^2	1654000
m t	Bogie mass	kg	2400
J t	Bogie pitch inertia	kg·m^2	1314
	Wheelset mass	kg	1850
R	Wheel radius	m	0.43
l c	Semilongitudinal spacing of secondary suspension	m	8.75
lt	Semilongitudinal spacing of wheelsets	m	1.25