Shock and Vibration / 2014 / Article / Tab 1

Research Article

Numerical Simulation of Vertical Random Vibration of Train-Slab Track-Bridge Interaction System by PEM

Table 1

Parameters for trailer car and motor car.

NotationItemUnitValue
Trailer carMotor car

/Mass of carbodykg4.4 × 1044.8 × 104
/Mass moment of inertia of carbodykg·m22.7 × 1062.7 × 106
/Mass of bogiekg2.4 × 1033.2 × 103
/Mass moment of inertia of bogiekg·m22.2 × 1037.2 × 103
/Mass of wheelsetkg2.4 × 1032.4 × 103
/Spring stiffness of the second suspension systemN/m6.0 × 1058.0 × 105
/Damping coefficient of the second suspension systemN·s/m8.0 × 1049.0 × 104
/Spring stiffness of the primary suspension systemN/m1.4 × 1062.08 × 106
/Damping coefficient of the primary suspension systemN·s/m8.0 × 1046.0 × 104
/Longitudinal distance between the center of bogie and the nearest side of carbodym3.453.45
/Half of longitudinal distance between the centers of front and rear bogiesm8.68758.6875
/Half of bogie axle basem1.251.25
/The fundamental frequency for vertical motion of carbodyHz0.750.84
/The fundamental frequency for pitching motion of carbodyHz0.840.97
/The fundamental frequency for vertical motion of bogieHz6.004.78
/The fundamental frequency for pitching motion of bogieHz7.106.28