A study on the characteristics of train and track behaviors due to irregularities at rail welding part

레일용접부의 요철에 따른 차량 및 궤도 거동특성에 대한 연구

Large dynamic forces are generated between wheel and rail due to rail surface irregularities at rail welded part. The effects become more and more significant in the view of the present tendency to train speed increasing. Therefore, the purpose of this paper is to derive useful guides for the effective and economical maintenance of rail welded parts through the wheel and rail interaction analyses. A typical shape for the irregularity of rail welded part is assumed to make the analysis quantitative. The effects of the irregularity depth and train speed on the train and track behaviors are investigated.