Research Article
Dynamic Responses of the Metro Train’s Bogie Frames: Field Tests and Data Analysis
Table 5
Characteristic frequency.
| | Case | Bogie frame | Frequency 1 (Hz) | Frequency 2 (Hz) | Wavelength 1 (m) | Wavelength 2 (m) |
| | Case 1 | Motor | 11.23 | — | 1.98 | — | | Trailer | 7.81 | — | 2.85 | — |
| | Case 2 | Motor | 8.79 | — | 3.63 | — | | Trailer | 8.3 | 11.23 | 3.85 | 2.84 |
| | Case 3 | Motor | 7.32 | — | 2.65 | — | | Trailer | 11.72 | 18.55 | 1.65 | 1.04 |
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