2607 一軸台車を用いたフランジ乗り上がりの基礎実験 : 輪重と横圧の測定(OS5-2 鉄道と航空機の安全,OS5 安全・安心・セキュリティー・防災,TRANSLOG 2006)

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This paper deals with an experimental study on wheel flange climbing of rail vehicles, which is a major factor leading to derailment. The experiment is carried out using a 1/5-scaled single axle truck of standard gauge. Five parameters such as wheel lift, attack angle, lateral force of outer rail and wheel loads of outer and inner rails are measured. Obtained results are as follows: Under the condition of fixed attack angle and lateral external force, the wheel lift tends to increase with the dynamic reduction of wheel-load, though the lateral force keeps almost constant until derailment occurs. The wheel load of outer rail decreases gradually while the one of inner rail increases. Also, the wheel load reduction of outer rail is smaller than the increment of inner rail. In the comparison with numerical analysis using a model developed here, the tendency of wheel lift agrees between them, though those of lateral force and wheel load do not.
2006-12-13