弾性支床弦モデルによる架線・パンタグラフ系の径間周期運動解析(機械力学,計測,自動制御)

概要

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One of the most important subject for the catenary-pantograph system is to reduce the contact force fluctuation in high-speed operation. In this paper, the motion and the contact force fluctuation in a span cycle is theoretically analyzed with a proposed model, which is represented by a tensioned string and a partially arranged elastic supporting system. The precision of the analysis, elastic variability of the supported string model and the wave transmitting characteristics at support points are investigated. It is shown that the analyzed results agree well with the results of simulation and field tests, and that the resonance speed is almost 0.4 times the wave propagating velocity of overhead contact lines. It is expected that this analysis method is able to evaluate quantitatively the motion and the contact force fluctuation in a span cycle.
2009-07-25