| 平地上高速列车的风致安全特性 |
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| 引用本文： | 于梦阁,张继业,张卫华.平地上高速列车的风致安全特性[J].西南交通大学学报,2011,46(6):989-995. |
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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,四川成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(50821063,50823004); 国家973计划资助项目(2007CB714701) |
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| 摘 要： | 为研究高速列车在强侧风作用下安全行驶问题,基于空气动力学和多体系统动力学理论,建立了高速列车空气动力学模型和车辆系统动力学模型.应用该模型计算了不同风向角、不同风速和不同车速下作用于车体上的侧风气动载荷.根据高速列车整车试验规范,以脱轨系数、轮重减载率、轮轴横向力和轮轨垂向力为运行安全指标,分析了头车、中间车和尾车的运行安全性.研究表明:头车的安全性最差,且风向角为90°时,横风情况下最危险.随着车速的增大,最大安全风速急剧减小.当车速为200km/h时,最大安全风速为29.61 m/s;当车速为400 km/h时,最大安全风速为18.87m/s.
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| 关 键 词： | 高速列车 空气动力学 多体系统动力学 风向角 安全风速 |
Wind-Induced Security of High-Speed Trains on the Ground |
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| YU Mengge
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ZHANG Jiye
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ZHANG Weihua.Wind-Induced Security of High-Speed Trains on the Ground[J].Journal of Southwest Jiaotong University,2011,46(6):989-995. |
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| Authors: | YU Mengge ZHANG Jiye ZHANG Weihua |
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| Institution: | YU Mengge,ZHANG Jiye,ZHANG Weihua(Traction Power State Key Laboratory,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to study the running security of high-speed trains under strong crosswinds,an aerodynamic model and a vehicle system dynamic model for computing the wind-induced vibration of the high-speed trains were established based on the theories of aerodynamics and multi-body system dynamics.With the models,the characteristics of crosswind aerodynamic loads acting on the train body under different wind angles,different wind speeds,and different running speeds were calculated.Then,according to the standard of... |
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| Keywords: | high-speed trains aerodynamics multi-body system dynamics wind angle safe wind speed |
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