混合すべり条件下におけるレール摩耗形状予測モデルの構築

（第1報：室内摩耗試験）

抄録

Rail of railway is one of the most important elements in constructing railway systems. Railheads are subjected severe contact with wheels during repeated passage of vehicles. As a result of severe contact with wheels, wear of rail or rail defect have been occurred on railheads. Rail profile will be changed due to wear development. The wear of rail, which does not occur in a short period of time, has a close relation to crack initiation. And there is a possibility that it influences the running stability or the curving performance of vehicle due to the change in the rail profile attributable to it. Therefore, it is very important to analyze the wear development of the rail. In the previous research, we conducted the wear experiment under the longitudinal or the lateral slip generated by use of full scaled test equipment. In this research, we conducted the wear experiment under the mixed slip conditions that the longitudinal slip and the lateral slip were generated at the same time in order to construct the wear prediction model under the mixed slip condition by use of multibody dynamics.