マルチボディダイナミクスを援用した車輪・レール摩耗形状予測モデルの構築と妥当性の検討

（第 1 報：室内摩耗試験）

抄録

In recent years, railway system is attracting attention in terms of energy efficiency and environment friendliness. Rail of railway is one of the most important elements in constructing railway system. Railheads are subjected to severe contact with wheels during repeated passage of vehicles. As a results 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. Worn profiles of rail have changed complexity in each section because the condition of wheel / rail contact has changed gradually, according to the running condition of vehicle and track geometry condition. It is very important to predict the worn profiles of rail based on the analysis of vehicle dynamics. Previously, we constructed the predicting model of worn profiles of rail with SIMPACK. In this study, we conducted the wear test by use of a full-scaled wheel / rail rolling contact equipment to distinct the coefficient of wear and to measure the worn profile for validating the prediction model.