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时速250km以上高速列车制动模式曲线算法

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Keywords: 高速列车,制动模式,常用制动,紧急制动,制动距离,运行阻力,模式曲线

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Abstract:

研究了时速250km以上高速列车制动系统,分析了高速列车的运行阻力、制动力与制动距离。根据目标距离模式曲线理论,建立了高速列车的制动模式曲线分段迭代模型。应用MAT-LAB/Simulink软件,分析了CRH2-300型高速列车在平直道上、15‰与25‰直坡道上的运行阻力的变化,对比了CRH2-300型和CRH3型高速列车在制动初速为300km.h-1时的常用和紧急制动曲线。计算结果表明在平直道上,CRH2-300型高速列车紧急制动距离为2786.68m,CRH3型高速列车紧急制动距离为3319.37m,均满足紧急制动距离小于3700m的制动要求;仿真制动曲线和实际制动曲线基本一致,验证了分段迭代算法的有效性。

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