| 侧风下高速列车车体与轮对的运行姿态 |
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| 引用本文： | 于梦阁,张继业,张卫华.侧风下高速列车车体与轮对的运行姿态[J].交通运输工程学报,2011(4). |
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| 作者姓名： | 于梦阁 张继业 张卫华 |
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| 作者单位： | 西南交通大学牵引动力国家重点实验室; |
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| 基金项目： | “十一五”国家科技支撑计划项目(2009BAG12A01); 国家863计划项目(2009AA110303) |
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| 摘 要： | 应用流体动力学理论,建立了高速列车空气动力学模型,计算了作用于高速列车车体上的气动力和气动力矩;应用多体动力学理论,建立了车辆系统动力学模型,分析了在不同风向角、侧偏角与合成风速下高速列车头车车体和轮对的运行姿态。计算结果表明:在不同侧风环境下,头车车体始终向背风侧横摆和侧滚;当风向角为90°时,车体的横向位移和侧滚角最大;当列车车速为350 km.h-1,侧风风速分别为13.8、32.6 m.s-1时,列车头车车体最大横向位移分别为74.2、171.7 mm,最大侧滚角分别为3.1°和8.4°;当列车车速为200 km.h-1,风速不小于32.6 m.s-1,且风向角为90°时,列车头车一、二位轮对均向背风侧横移,背风侧车轮易发生爬轨现象,三、四位轮对均向迎风侧横移,三位轮对迎风侧车轮易发生爬轨现象;四位轮对的横移量和摇头角均小于前三位轮对,相对安全。
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| 关 键 词： | 高速列车 空气动力学 系统动力学 侧风 车体 轮对 运行姿态 |
Running attitudes of car body and wheelset for high-speed train under cross wind |
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| YU Meng-ge,ZHANG Ji-ye,ZHANG Wei-hua.Running attitudes of car body and wheelset for high-speed train under cross wind[J].Journal of Traffic and Transportation Engineering,2011(4). |
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| Authors: | YU Meng-ge ZHANG Ji-ye ZHANG Wei-hua |
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| Institution: | YU Meng-ge,ZHANG Ji-ye,ZHANG Wei-hua(Traction Power State Key Laboratory,Southwest Jiaotong University,Chengdu 610031,Sichuan,China) |
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| Abstract: | The aerodynamics model of high-speed train was established by using fluid dynamics theory,and the aerodynamic forces and aerodynamic moments acting on the car body of high-speed train were calculated.Vehicle system dynamics model was established by using multi-body dynamics theory,and the running attitudes of front car body and wheelset for high-speed train under different wind directions,side slip angles and synthetic wind speeds were analyzed.Calculation result indicates that under different cross wind co... |
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| Keywords: | high-speed train aerodynamics system dynamics cross wind car body wheelset running attitude |
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