Comparison of simulation results before and after optimization
| Key parameters | Before optimization | Optimized |
|---|---|---|
| Braking speed (km/h) | – | 63.0 |
| Releasing speed (km/h) | 29.6 ∼ 30.7 | 40.0 |
| Release position (km) | K292 + 967 | K293 + 260 |
| Electric brake force during air braking | – | 40% |
| Electric brake force before and after releasing | 30% ∼ 70% | 13% |
| Maximum tensile coupler force (kN) | 988 ∼ 1,025 | 780 |
| Maximum compression coupler force (kN) | −322 ∼ −1,144 | −588 |
| Coupler force amplitude (kN) | 1,547 ∼ 2,169 | 1,368 |
| Key parameters | Before optimization | Optimized |
|---|---|---|
| Braking speed (km/h) | – | 63.0 |
| Releasing speed (km/h) | 29.6 ∼ 30.7 | 40.0 |
| Release position (km) | K292 + 967 | K293 + 260 |
| Electric brake force during air braking | – | 40% |
| Electric brake force before and after releasing | 30% ∼ 70% | 13% |
| Maximum tensile coupler force (kN) | 988 ∼ 1,025 | 780 |
| Maximum compression coupler force (kN) | −322 ∼ −1,144 | −588 |
| Coupler force amplitude (kN) | 1,547 ∼ 2,169 | 1,368 |
Source(s): Authors’ own work