鉄道車輪軸の転走におけるカオス的挙動 : 縮小模型による実験

概要

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Several papers have been published in the last few years about chaotic behaviors occurring in the running vibration of railway vehicles. Those papers showed the possibility of occurrence of chaotic vibration by means of a numerical simulation methed. This paper deals with an experimental study, the aim of which is to establish the practical occurrence of such a chaotic vibration, using a scale model of a single wheelset running on a test stand. As a result, the running vibration of the wheelset shows chaotic behavior when the wheel flange collides hard against the side of the rail due to the hunting motion arising with the increase of running speed. This is the first experimental result on the chaotic vibration of running wheelsets. The chaotic features are confirmed with maximal Lyapunov exponents, correlation dimension and other factors.
社団法人日本機械学会の論文
1994-05-25