Research Article

Modelling Ambient Vibration Responses Induced by Operation of Metro Train on Curved Rail Segment with Small Curvature Radius

Table 6

Train mechanical parameters.

ParametersUnitValue

Bogie (trailer/motor power car)t5.4/6.5
Trailer body weight (empty scenario/personnel quota scenario/overcrowding scenario)t22/35.8/41.44
Motor power car body weight (empty scenario/personnel quota scenario/overcrowding scenario)t22.4/37.4/43.08
Rolling inertia of car body under overcrowding scenario (trailer/motor power car)t·m233.956/35.3
Rotating inertia of body nodding under overcrowding scenario (trailer/motor power car)t·m21391.814/1446.895
Moment of inertia of car body shaking head under overcrowding scenario (trailer/motor power car)t·m21380.284/1434.91
Rolling inertia of car body under personnel quota scenario (trailer/motor power car)t·m229.335/35.3
Rotating inertia of body nodding under personnel quota scenario (trailer/motor power car)t·m21202.387/1446.895
Moment of inertia of car body shaking head under personnel quota scenario (trailer/motor power car)t·m21192.428/1434.91
Frame weight (trailer/motor power car)t2.56/3.42
Rolling inertia of frame (trailer/motor power car)t·m21.05/1.43
Rotating inertia of nodding head of frame (trailer/motor power car)t·m21.75/1.85
Rotating inertia of shaking head of frame (trailer/motor power car)t·m21.98/2.95
Wheelset weight (trailer/motor power car)t1.42/1.539
Rotating inertia of wheel-to-wheel roll (trailer/motor power car)t·m20.739/0.801
Rotating inertia of wheelset nodding head (trailer/motor power car)t·m20.096/0.104
Rotating inertia of wheelset shaking head (trailer/motor power car)t·m20.751/0.814
Longitudinal stiffness of primary suspension (per axle box) (trailer/motor power car)MN/m6.6/10.6
Transverse stiffness of primary suspension (per axle box) (trailer/motor power car)MN/m5.2/7.8
Vertical stiffness of primary suspension (per axle box)MN/m1.7
Longitudinal stiffness of secondary suspensionMN/m0.21
Lateral stiffness of secondary suspensionMN/m0.21
Vertical stiffness of secondary suspensionMN/m0.45