Research Article
Insights into Underrail Rubber Pad’s Effect on Vehicle-Track-Viaduct System Dynamics
Table 6
Car body acceleration power spectrum peak and peak frequency.
| | Acceleration type | Ambient temperature (oC) | First resonant frequency | Second resonant frequency | | Peak ((m/s2)2/Hz) | Frequency (Hz) | Peak ((m/s2)2/Hz) | Frequency (Hz) |
| | Vehicle body ups and downs vibration acceleration | 20 | 0.40840 | 1 | 0.06800 | 5 | | −20 | 0.40860 | 1 | 0.06732 | 5 | | −30 | 0.40870 | 1 | 0.06700 | 5 |
| | Vehicle body nodding vibration acceleration | 20 | 0.01041 | 1 | 0.00081 | 7 | | −20 | 0.01040 | 1 | 0.00080 | 7 | | −30 | 0.01039 | 1 | 0.00079 | 7 |
|
|
