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http://dx.doi.org/10.7782/JKSR.2016.19.4.489

Rail Corrugation Effects on the Dynamic Behavior of Clips of Rail Fastening System in Operation Environment of Urban Railway  

Kim, Man-Cheol (Advanced Infrastructure Research Team, Korea Railroad Research Institute)
You, Won-Hee (Advanced Infrastructure Research Team, Korea Railroad Research Institute)
Sim, Hyoung-Bo (Department of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of the Korean Society for Railway / v.19, no.4, 2016 , pp. 489-497 More about this Journal
Abstract
The rail fastening system, which provides a structural connection between the rail and the sleepers, is a main track component that plays an important role in retaining the rail gauge within acceptable tolerances, as well as in passing the train load to the roadbed through the sleepers. In this paper, a modal test was first performed to evaluate the dynamic characteristics (e.g., natural frequency) of the clips of the railway fastening system under the condition of rail corrugation in urban railway operation. The corrugation-induced passing frequency was then compared with the natural frequency of the clips to investigate any resonance effect during train passage. Furthermore, a field test under train passage was conducted to measure the accelerations on the rail and the rail fastening clips as well as the strains on the rail fastening clips in the rail corrugation condition. The field measurements indicated that the accelerations on the rail and the rail fastening clips have a close relationship with the rail corrugation, but they had a minimal effect on the strains of the rail fastening clips.
Keywords
Urban railway; Rail fastening system; Corrugation; Vibration characteristics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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