Back to Search
Start Over
Experimental study on dynamic performance of medium and low speed maglev train-track-bridge system
- Source :
- International Journal of Rail Transportation; May 2021, Vol. 9 Issue: 3 p232-255, 24p
- Publication Year :
- 2021
-
Abstract
- ABSTRACTTrain-track-bridge dynamic tests were conducted on the Shanghai Lingang Medium and Low Speed Maglev Test Line. A newly developed levitation bogie with mid-set air spring was used on the test train. The test results show that: the vertical and lateral first-order natural frequencies are 7.50 Hz and 6.00 Hz, respectively; vehicle speed has no significant effect on the vertical dynamic displacement of the bridge; within specific speed ranges, the acceleration of the test train-track-bridge system shows monotonic variation characteristics as vehicle speed changes; the lateral accelerations of the bridge, sleeper, and F-shaped rail are distributed in a wider dominant frequency band compared with the corresponding vertical accelerations; the dominant frequency bands of vibration acceleration of levitation bogie and car body are generally concentrated below 15 Hz; the vertical and lateral Sperling indexes of the test train are less than 2.5, indicating that the test train is superior in ride quality.
Details
- Language :
- English
- ISSN :
- 23248378 and 23248386
- Volume :
- 9
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- International Journal of Rail Transportation
- Publication Type :
- Periodical
- Accession number :
- ejs56750924
- Full Text :
- https://doi.org/10.1080/23248378.2020.1798294