Research Article
Building Vibration Prediction Induced by Moving Train with Random Forest
Table 1
Calculation parameters of train model.
| Name | Unit | CRH2 (locomotive) | CRH2 (car) |
| Overall vehicle mass Mc | kg | 3160 | 30500 | Bogie quality Mt | kg | 3200 | 2600 | Wheelset quality | kg | 2000 | 1910 | Moment of inertia of vehicle body nodding Jc | kg·m2 | 1.867 × 106 | 1.279 × 106 | Moment of inertia of bogie nodding Jt | kg·m2 | 1.753 × 103 | 1.424 × 103 | Primary suspension stiffness (per axle) Kpz | N/m | 2.352 × 106 | 2.488 × 106 | Primary suspension damping (per axle) Cpz | N·s/m | 1.96 × 105 | 3.92 × 105 | Secondary suspension stiffness Ksz | N/m | 2.291 × 106 | 1.982 × 106 | Secondary suspension damping Csz | N·s/m | 1.174 × 106 | 1.96 × 106 | Vehicle length l | m | 25 | 25 | Vehicle spacing lc | m | 17.5 | 17.5 | Wheelbase of bogie lt | m | 2.5 | 2.5 | Wheel rolling circle radius R | m | 0.43 | 0.43 |
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