Analysis of Influence of Inverse Curve Parameters on the Running Performance of Metro Vehicles
In order to study the influence of different geometric parameters of reverse curves on the running performance of metro vehicles,a train-track coupling dynamic model is established based on the major parameters of the China B-type metro car.The effects of different curve radii,superelevation and the length of embedded line between two curves on the performance of the train passing through the reverse curve are analyzed under same conditions.The results show that all indicators of driving performance meet the requirements of corresponding standards when the metro car passes through curves with above different geometric parameters in the design specification.The curve radius has a great influence on the wheel-rail lateral force,derailment coefficient and wheel load reduction rate.The larger the radius is,the smaller the indicators are.The superelevation has little effect on the running performance of the train passing through the reverse curves.the greater the supereleva-tion,the greater the lateral force on the inner rail side and the smaller that on the outer rail side.The clip line length within the specified range has little effect on the running performance of the train passing through the reverse curve.
国家科技期刊平台
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