アタック角が付与された車輪フランジとレール間における接触面と摺動方向についての一考察

概要

論文の詳細を見る
On the cause of the Wheel Climb Derailment(WCD), the contact point position between the rail and the wheel is said to profoundly effect on the wheel lift-up value, which is one of the most relational factors to the WCD. During the WCD, the position, situated on the wheel-flange, has been considered to transfer merely to the vertical and rail-longitudinal directions, so, the position has used to be defined by the above mentioned method. But, the position also transfers to the lateral direction according to the changing of the wheel attack angle to the rail when the WCD occurs. Then, the position should be three dimensionally defined, and the phenomena of the contact field between the wheel and the rail should be discussed on the same space. Based on the knowledge of contact point position by the geometric analysis and the model experiment, the authors estimate slipping direction at the contact point during the WCD three dimensionally.