Papers by Author: Seung Ho Jang

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Authors: Chul Su Kim, Gil Hyun Kang, Seung Ho Jang
Abstract: To reduce the cost and the time of transport in Eurasian railroad networks such as TKR(Trans-Korea Railway), TCR(Trans-China Railway) and TSR(Trans-Siberia Railway) owing to the problem of different track gauges (narrow/standard/broad gauge), it is important to develop the gauge-adjustable wheelset (GAW) system to adapt easily to these gauges. The GAW system in the transcontinental railway represents a more effective way in comparison with other techniques for overcoming difference in track gauges. Freight trains having the GAW system will be passing various curved tracks in railroad networks. In this study, it was performed to evaluate contact stress and fatigue life of locking parts during freight trains' service in the curved track, respectively. Moreover, the safety of Korean GAW system at running track was verified by rig tests according to UIC 510-4 code.
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Authors: Chul Su Kim, Cheon Soo Jang, Seung Ho Jang, Jung Kyu Kim
Abstract: To reduce the cost and time of transport due to the different track gauges(narrow, standard, broad) in the Eurasian railroad network such as TKR(Trans-Korea Railway), TCR(Trans-China Railway) and TSR(Trans-Siberia Railway), it is very necessary to develop and adapt the gauge-adjustable wheelsets system. The freight trains’ with gauge-adjustable system could operate on the different track gauges in the transcontinental railway. Therefore, to assure the safety of the newly developed gauge-adjustment wheelsets system, it is essential to evaluate integrity of locking parts in the system by using fatigue analysis. In this study, it was performed that contact stress analysis of locking parts by using FEM(Finite Element Method) in the case both the gauge changeover operation and freight trains' service in the curved track, respectively. Besides, to consider the variation of fatigue data, the crack initiation life was statistically evaluated.
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