Research Article
Decoupling Optimization Design of Under-Chassis Equipment Suspension System in High-Speed Trains
Table 3
Modal frequency and energy distribution of UCE by FDM.
| Order | 1 | 2 | 3 | 4 | 5 | 6 |
| Modal frequency (Hz) | 6.23 | 8.66 | 11.09 | 17.02 | 20.87 | 26.86 | Energy distribution (%) | x | 0.0 | 3.8 | 91.0 | 2.2 | 2.9 | 0.1 | y | 97.9 | 0.1 | 0.3 | 0.4 | 0.1 | 0.1 | z | 1.1 | 85.8 | 4.5 | 0.0 | 1.0 | 4.6 | rx | 0.4 | 2.2 | 0.3 | 0.6 | 13.9 | 82.7 | ry | 0.0 | 7.0 | 1.1 | 2.4 | 80.0 | 12.5 | rz | 0.6 | 0.1 | 2.8 | 94.3 | 2.1 | 0.0 |
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