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http://dx.doi.org/10.5370/KIEE.2013.62.12.1820

A Experimental Study on Train Speed and Wave Propagation Speed of Contact Wire according to the Speed-up  

Lee, Kiwon (High-Speed Railroad Research Center, Korea Railroad Research Institute)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.12, 2013 , pp. 1820-1823 More about this Journal
Abstract
An overhead catenary system is the one of the main subjects for increasing speed in electric railway. When a vehicle increases the speed over 350km/h, vibrations and wave propagation reflections occur severely. Therefore, the system suitable for the speed are needed. A wave propagation speed of contact wire is the main criteria to determine the tension for the system. Therefore, a train speed is restricted below 70% of wave propagation speed of it in European railway code. In this study, we measured a strain and uplift of contact wire while HEMU-430X tain is operated for the speed-up trial test in Kyungbu high-speed railway. The measured strain and uplift are analyzed with wave propagation speed according to the speed-up. The more a train speed reaches to a propagation speed, the more measured strain is high. Through the study, an experimental approach is performed about the code which a train speed is restricted below 70% of wave propagation speed of it.
Keywords
Wave propagation speed; Strain; Uplift; Contact wire; HEMU-430x;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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