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http://dx.doi.org/10.5762/KAIS.2013.14.8.4068

Study on the Behavior of Curved Track in Honam High-Speed Line considering the Running Performanace for HEMU 430-X  

Kang, Yun-Suk (High-Speed Railroad Infrastructure System Research Team, KRRI)
Um, Ki-Young (High-Speed Railroad Infrastructure System Research Team, KRRI)
Kim, Seog-Won (Next High-Speed Railroad Systems Research Team, KRRI)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.8, 2013 , pp. 4068-4076 More about this Journal
Abstract
The wheel-rail interaction forces are influenced by the velocity of vehicle, wheel load, alignment (curve radius, cant etc). For the safety of track structure, it is required to evaluate the influences for track and influential factors. Recently, the HEMU 430-X, which was developed by Next Generation High-Speed Rail Development R&D Project, achieved 421.4km/h in a test run of Daegu.Busan section of the Gyeongbu high speed rail on March in 2013. In the case of additional speed-up test on Test-Bed Section(Gongju.Jeongeup: KP 100~128km Osong starting point), the analysis of track forces is required for outer rail by the increase of dynamic force and centrifugal force of vehicle. In this paper, the vehicle speed variation on HSL line is evaluated by TPS analysis considering the tractive effort of HEMU 430-X, tested running resistance and alignment of Honam HSR. And the track forces are evaluated by centrifugal force and impact factor on curved track.
Keywords
Track; Alignment; Curve Radius; Cant; Centrifugal Force; HEMU-430-X; TPS; Impact Factor;
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