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- W2622226465 abstract "传统轨道结构中，钢轨铺设在均匀离散分布的轨枕上。钢轨支承方式不仅关系到轨道线路的建设造价，也对轨道车辆的运行安全与稳定有着重要的影响。本文基于车辆–轨道耦合动力学仿真，对钢轨连续及离散支承情形下地铁线路轮轨动力响应进行比较分析。计算结果表明，新型连续支承轨道结构上地铁车辆的轮轨力及钢轨的振动性能均优于传统的离散支承轨道。对于传统的钢轨离散支承地铁轨道，轨枕间距越小，车轮越过轨枕所引发的轮轨动态作用力和钢轨振动加速度越大。 Rails are discretely supported by uniformly distributed sleepers in traditional tracks. The rail support mode not only affects the constructing cost of metro lines, but also influences the running safety and stability of metro vehicles. This paper presents a study of the wheel/rail dynamic interactions of metro lines with continually and discretely supported rails by using vehicle-track dynamics simulations. Through numerical analysis, it is found that the innovative track with continually supported rails has advantages over the traditional track with discretely supported rails for the potentialities to reduce the dynamic wheel/rail force and the vibration level of rails. For the traditional track with discretely supported rails, a smaller sleeper span results in higher dynamics wheel/rail impact force and rail vibration acceleration due to sleeper passing excitation." @default.
- W2622226465 created "2017-06-15" @default.
- W2622226465 creator A5076639986 @default.
- W2622226465 date "2017-01-01" @default.
- W2622226465 modified "2023-09-23" @default.
- W2622226465 title "Effect of Rail Support Mode on Wheel/Rail Dynamic Interaction of Metro Lines" @default.
- W2622226465 cites W2016969736 @default.
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- W2622226465 doi "https://doi.org/10.12677/ojtt.2017.64016" @default.
- W2622226465 hasPublicationYear "2017" @default.
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