Analysis of Antideformation and Antivibration Effect of Different Track Beds under Subway Train Vibration

Table 1

Subway train body parameters.

Component	Value
Mass of subway train (t) (single cycle)	The locomotive: 36 t
	The trailer: 34.6 t
Subway train body length (m) (velocity direction)	19.5
Width of subway train body (m)	2.8
Height of subway train body (m) (bottom plate from top of rail: 1.1 m)	2.7 (the height of the underground train from the rail surface: 3.8 m)
Vehicle bogie distance (m), 2Lc	12.6
Bogie wheelbase fixed distance (m), 2Lt	2.2
Moment of inertia of nodding mass of subway train (kg·m^2), Iyy	1328000
Moment of inertia of mass side roll of subway train (kg·m^2), Ixx	32400
Moment of inertia of shaking head of a mass of subway train (kg·m^2), Izz	1317000