Durability analysis of locking parts in the gauge-adjustable wheelset system

초록

To reduce the cost and the time of transport in the Eurasian railroad network such as TKR, TCR and TSR owing to the different track gauges, it is necessary to develop and adapt the gauge-adjustable wheelset system. The gauge-adjustable wheelset 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 gauge-adjustable wheelset will be passing various curved tracks in railroad networks. Therefore, to assure the safety of the newly developed gauge-adjustment wheelset system, it is essential to evaluate integrity of locking parts in the system using fatigure analsys. In this study, it was performent to contact stress analysis of locking parts using FEM during the gauge chageover operation and freight trains' service in the curved track, respectively. Based on these results, the fatigue life of locking parts with the variation of the fatigue strength, by considering the effect of the surface treatmetn process, was evaluated by a durability analysis.