車輪とレールの摩耗を考慮した接触特性評価システムの開発(機械力学,計測,自動制御)

概要

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The longer distance a vehicle runs, the severer wears are evident on wheel tread. In the same way, the more tonnage of vehicle passes on the rail, the severer wears are evident on rail tread. The severe wears on wheel tread and on rail tread adversely affect the characteristics of vehicle dynamics greatly. Therefore it is indispensable to grasp characteristics of contact point between wheel and rail geometrically to analyze the characteristics of vehicle dynamics. However, there was not an analytical method to be able to calculate simply and easily characteristics of contact point, which was formed by actual shapes of both tread wears of rail and wheel. Therefore we developed an analytical system by which we could calculate variations of wheel radius and contact angle each corresponding to lateral displacement of wheel set for a combination of wheel wear tread and rail wear tread. Thus equivalent conicity could be obtained based on the results of calculation.
2009-02-25