3214 実断面形状の室内試験に基づく車輪・レールの摩耗進展シミュレーション(OS4-2 摩耗の予測・測定,OS4 接触問題とトライボロジ,オーガナイズド・セッション(OS))

概要

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Wear prediction of railway's wheel and rail is expected to contribute to a reduction in maintenance cost since the amount of wear is one of the elements which determine the lifetime of wheel and rail. In this study, a vehicle-dynamics simulation program that enables to predict wheel/rail's wear profile (shape) due to rolling contact between wheel and rail is developed. A wear coefficient of a wear law installed in the simulation program was estimated with data of a rolling contact experiment in a laboratory, which simulated running condition of a vehicle in a curve, using with full-scale transversal wheel/rail profiles and real materials used for wheel and rail. Furthermore, a wear simulation program based on a multi-body dynamics software in commercial use was also developed and was compared with a wear simulation implemented by the original program.
2011-12-06