Table 5 Track upper structure parameters.
From: A simplified method for determining earthquake early warning thresholds in high speed railways
Name | Parameter | Symbol | Unit | Value |
|---|---|---|---|---|
Vehicle body | Mass | Mc | kg | 30,060 |
Moment of inertia about the z-axis | Icz | kg m2 | 7.506 × 104 | |
Moment of inertia about the x-axis | Icx | kg m2 | 2.277 × 106 | |
Moment of inertia about the y-axis | Icy | kg m2 | 2.086 × 106 | |
Frame | Mass | Mb | kg | 3890 |
Moment of inertia about the z-axis | Ibz | kg m2 | 2260 | |
Moment of inertia about the x-axis | Ibx | kg m2 | 2710 | |
Moment of inertia about the y-axis | Iby | kg m2 | 3160 | |
Wheel-set | Mass | Mw | kg | 1755 |
Moment of inertia about the z-axis | Iwz | kg m2 | 915 | |
Moment of inertia about the x-axis | Iwx | kg m2 | 140 | |
Moment of inertia about the y-axis | Iwy | kg m2 | 915 | |
First series spring | Lateral stiffness | Kpx | kN/m | 12,000 |
Vertical stiffness | Kpy | kN/m | 1260 | |
Longitudinal stiffness | Kpz | kN/m | 10,000 | |
Vertical damping | Cpz | kN s/m | 6 | |
Second series spring | Lateral stiffness | Ksx | kN/m | 176 |
Vertical stiffness | Ksy | kN/m | 235 | |
Longitudinal stiffness | Ksz | kN/m | 150 | |
Lateral damping | Csx | kN s/m | 1.22 | |
Vertical damping | Csy | kN s/m | 16.5 |
