剛体架線・パンタグラフ系の波状摩耗による衝突振動（舟体の弾性振動の影響）

概要

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A theoretical and experimental investigation was conducted into impact oscillations between a pantograph and an overehead rigid conductor line in a railway current collecting system. The contact problem was modeled as impact oscillations of a beam with a sinusoidal vibrating plate were theoretically examined. The impact relations are derived considering the effects of multiple modes vibrations. Using some of the concepts behind periodic oscillations, qualitatively distinct impact oscillations of the beam with multiple modes are clarified. The interactions between the lowest two modes during the impacts are also discussed. Moreover, we conducted an experiment using a similar model based on the analytical model. Qualitative agreement was demonstrated between the experimental and theoretical results. Some experimental results reveal specific impact oscillations which correspond to the theoretical results considering the interactions between lowest two mode oscillations.
2011-08-02