車輪とレールの連成運動を考慮した輪重変動解析(機械力学,計測,自動制御)

概要

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The decrease of wheel load variation is one of the most important subjects in order to further enhance stability, safety and ride comfort of high-speed train. In this paper, we conduct the simulation analysis on wheel load variation in order to investigate the influence of the specifications of both vehicle and track on wheel load variation of high-speed train, and in order to derive the appropriate specifications to decrease the Wheel load variation. As a result of the eigen value analysis and the time history response analysis, we figured out as follows : The wheel load variation is mainly caused by the vertical motion of the wheel/rail at the basis on the primary natural vibration of the wheel/rail system ; the wheel load variation is influenced a great deal by the relation between the natural frequency of wheel rail and the frequency determined by both running speed and the interval of support springs.
2007-03-25