Research Article
Improved Multibody Dynamics for Investigating Energy Dissipation in Train Collisions Based on Scaling Laws
Table 4
Comparison of deformations between experiment and IMM.
| Location | Deformation for experiment (mm) | Deformation for IMM (mm) | Difference (mm) | Relative error |
| Region 1 | Collapsed tube | 56 | 62.5 | 6.5 | 11.61% | Main energy absorbing structure | 199 | 224 | 25 | 12.56% | Region 2 | Collapsed tube | 60 | 62.5 | 2.5 | 4.17% | Main energy absorbing structure | 134 | 150 | 16 | 11.94% | Regions 1 and 2 in total | Collapsed tube | 116 | 125 | 9 | 7.76% | Main energy absorbing structure | 333 | 374 | 41 | 12.31% | Region 3 | Collapsed tube | 0 | 0.5 | 0.5 | | Car body | 0 | 0 | 0 | | Region 4 | Collapsed tube | 0 | 0.6 | 0.6 | | Car body | 0 | 0 | 0 | | Regions 3 and 4 in total | Collapsed tube | 0 | 1.1 | 1.1 | | Car body | 0 | 0 | 0 | | Regions 5 and 6 in total | | 0 | 2 | 2 | | Regions 7 and 8 in total | | 0 | 1 | 1 | | Regions 9 and 10 in total | | 0 | 3 | 3 | |
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