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为给客运专线道岔过渡段刚度合理设置提供理论参考,在分析高速铁路道岔与区间过渡段结构特性的基础上,建立了高速车辆—过渡段耦合动力分析模型和求解方法,分析了刚度差、行车方向和速度等因素对高速道岔与区间过渡段的动力响应影响。结果表明:过渡段刚度差在30 kN/mm内,动车组和轨道的动力响应随刚度差的增大而大幅加剧;动车组从低刚度向高刚度运行时的动力响应较反向运行更为剧烈;各项动力响应随着运行速度的提高而增大。
In order to provide a theoretical reference for reasonable setting of the transitional section of turnout in passenger dedicated railway line, based on the analysis of structural characteristics of high-speed railway turnout and transitional section, a coupled dynamic analysis model and solving method of high-speed vehicle- Influence of Direction, Speed and Speed on Dynamic Response of High Speed Turnout and Interval Transition Section. The results show that the dynamic response of the EMU and the orbit is greatly aggravated with the increase of the stiffness difference when the stiffness difference of the transition section is within 30 kN / mm. The dynamic response of the EMU from low stiffness to high stiffness is more Intense; the dynamic response increases with the increase of operating speed.