3303 車輪踏面の損傷の評価方法に関する一考察

概要

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Recently, most of the railroad companies proceed with the study to evaluate badness of the damage of the wheel-flat as the typical wound of wheel-tread, by the size of "vertical acceleration of rail". But, because damage of the wheel-tread brings "impact-noise" and "shock on the rolling stock equipment", originally, we have to evaluate rail acceleration by the size of the noise and the shock. So to verify relevance with "Noise level of side between bogie" and "Acceleration of axle-box and gear case" about the rail acceleration, "artificial" wheel-flat were made on the test vehicles, and we enforced a running test by the test vehicles. As this result, rail acceleration takes an influence from "dependence on train speed", "attenuation characteristic", size of the wheel-flat (depth and length), and so on, it confirmed that there was some relevance between rail acceleration and noise level, axle-box acceleration. Then, we examined a method to evaluate damage in the rail acceleration of some steps.
社団法人日本機械学会の論文
2003-12-08