Research Article
Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws
Table 2
Design of scaled model.
| Number | Structure | Parameter name | Real value | Scaled value | Design in experiment |
| 1 | Cars | Car 1 mass | 46.6 t | 91 kg | Iron blocks Size: cross-sectional area mm2 | 2 | Car 2 mass | 50.9 t | 99 kg | 3 | Car 3 mass | 56.0 t | 109 kg | 4 | Car 4 mass | 48.5 t | 95 kg | 5 | Car 5 mass | 50.0 t | 98 kg | Car 6 mass | 53.3 t | 104 kg | Car 7 mass | 56.0 t | 109 kg | Car 8 mass | 47.2 t | 92 kg | 6 | Buffer in head car | Compression | 87 mm | 10.875 mm | Rubber Size: mm3 | Max. force | 600 kN | 9.375 kN | 7 | Collapsed tube in head car | Length | 500 mm | 62.5 mm | Two honeycombs Size: mm3 Strength: 0.18 MPa | Steady compression force of plastic deformation | 600 kN | 9.375 kN | 8 | Main energy absorbing structure in head car | Length | 3000 mm | 375 mm | Two honeycombs Size: mm3 Strength: 0.56 MPa | Steady compression force of plastic deformation | 1100 kN | 17.1875 kN | 9–12 | Buffer in middle car | Compression | 100 mm | 12.5 mm | Rubber Size: 0 mm3 | Max. force | 1000 kN | 15.625 kN | 13–16 | Collapsed tube in middle car | Length | 500 mm | 62.5 mm | Two honeycombs Size: mm3 Strength: 0.44 MPa | Steady compression force of plastic deformation | 1000 kN | 15.625 kN | 17 | Car body | Steady compression force of plastic deformation | 1500 kN | 23.4375 kN | A honeycomb Size: mm3 Strength: 0.27 MPa |
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