曲線部に発生するレール波状摩耗の発生メカニズムに関する研究 : 第1報, 接触ばね系振動を考慮した縦方向スティック・スリップ・モデル

概要

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By using the corrugation formatting and developing model we successfully fixed the formatting and developing mechanism of rail corrugation on curved track. The frequency of corrugation is governed by the vertical dynamic system of the wheelset including the contact stiffness between rail and wheel, but not by the torsional dynamic system of the wheelset. From the simulation results we find that, (1) reducing the wheelset mass and static wheel load, (2) increasing the radius difference between inside/outside wheels in curving, the damping of axle suspension and axle torsional stiffness, are useful means to reduce corrugation. However, reducing axle suspension stiffness has almost no influence on the reduction of corrugation, because the contact stiffness between rail and wheel is much greater than the suspension stiffness.
一般社団法人日本機械学会の論文
1996-05-25