[1]赵庆贤,葛秀坤,邵辉,等.列车大提速后周围流场变化诱发的事故隐患分析[J].中国安全生产科学技术,2011,7(12):67-73.
ZHAO Qing-xian,GE Xiu-kun,SHAO Hui.Analysis on security hidden troubles induced by variability of flow field due to raising train speed greatly[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(12):67-73.
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列车大提速后周围流场变化诱发的事故隐患分析
ZHAO Qing-xian,GE Xiu-kun,SHAO Hui.Analysis on security hidden troubles induced by variability of flow field due to raising train speed greatly[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(12):67-73.
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 7
- 期数:
- 2011年12期
- 页码:
- 67-73
- 栏目:
- 学术论著
- 出版日期:
- 2011-12-30
文章信息/Info
- Title:
- Analysis on security hidden troubles induced by variability of flow field due to raising train speed greatly
- 文章编号:
- 1673-193X(2011)12-0067-07
- Keywords:
- EMU; aerodynamic force; simulation; risk; negative pressure
- 分类号:
- X913.4
- DOI:
- -
- 文献标志码:
- A
- 摘要:
- 选用CRH2型动车组l:l模型,对不同时速条件下列车周围流场进行模拟计算,得到列车所受空气动力随车速的变化规律,分析可能存在的安全问题。模拟结果表明:列车侧向力、升力和倾覆力矩均随着时速的增加而增大;列车快速行驶时,两侧处于负压状态,随着时速的增加负压程度也增强,垂直于列车方向压强梯度不断增大,轨道沿线两侧的行人或其它物体被卷入的可能性增加;与单列车模拟结果进行比较分析可以看出:两车交会时中间的压力非常低,列车的倾覆力矩明显增大,车体对内侧轨道的作用力也随之增大,列车运行危险性增加。
- Abstract:
- This paper used 1:1 model of EMU with its type GRH2,simulate and calculate the flow field around the train at under different speed conditions,got change rules of the train aerodynamic force with the speed and analyzed the potential safety problems.The simulation results showed that the side-force,lift-force and capsizing moment of the train increased with the increase of the speed;when the train was driving its two sides was in negative pressure,the negative pressure level increased with the increase of the speed,pressure gradient perpendicular to the train direction increased gradually and the pedestrians or other objects both sides of the train rail got involved more probably;.Compared with simulation results of a train,we could know that the intermediate pressure was very low when two trains met,the train capsizing moment increased sharply,the applied force which the train bodies acted on the inner side rail also increased and the driving risk of the train increased.
参考文献/References:
[1] 何理,钟茂华,邓云峰.城市轨道交通危险因素分析[J].中国安全生产科学技术.2005.1(3):25-29.He L, Zhong M H, Deng Y F. Analysis on risk factors of urban subway[J]. Journal of Safety Science and Technology. 2005.1(3):25-29.[2] 何理,钟茂华,史聪灵,等.城市轨道交通安全评价体系研究[J].中国安全生产科学技术. 2009.5(6):128-132.He L, Zhong M H,Shi C L, et al. Study on safety evaluation system of urban rail transit[J]. Journal of Safety Science and Technology. 2009.5(6):128-132.[3] 许巧详,何理,钟茂华,等.城市轨道交通工程安全验收评价探讨[J].中国安全生产科学技术. 2006.2(1):65-68.Xu Q X, He L, Zhong M H , et al.Thoughts about safety acceptance evaluation of urban railway tragic engineering[J]. Journal of Safety Science and Technology. 2006.2(1):65-68.[4] W.Khier,M.Breuer,F.Durst.Flow structure around trains under side wind conditions: a numerical study[J].Computers&Fluids.29(2000)179-195.[5] 郗艳红,毛军,张念.强风中高速列车安全性研究[J].中国安全科学学报.2010.20(5):39-45.Xi Y H, Mao J, Zhang N. Study on the Safety of High-speed Train in Strong Wind[J].China Safety science Journal. 2010.20(5):39-45.[6] Chang-Hoon Shin,Warn-Gyu Park.Numerical study of flow characteristics of the high speed train entering into a tunnel[J].Mechanics Research Communications. 30(2003)287-296. [7] J.K.Mok,J.Yoo. Numerical study on high speed train and tunnel hood interaction[J].Journal of Wind Engineering and Industrial Aerodynamics. 89(2001)17-29.[8] 田红旗.中国列车空气动力学研究进展[J].交通运输工程学报. 2006.6(1):1-9.Tian H Q. Study evolvement of train aerodynamics in China[J].Journal of Traffic and Transportation Engineering. 2006.6(1):1-9.[9] KOZO FUJII,TAKANOBU OGAWA.Aerodynamics of high speed trains passing by each other [J].Computers and Fluids.1995.24(8):897-908.[10] Zhao X L,Sun Z X. A new method numerical simulation of two trains passing by each other at the same speed[J].journal of hydrodynamics.2010.22(5):697-702.[11] 毕海权,雷波,张卫华.TR磁浮列车湍流外流场数值计算[J].西南交通大学学报.2005.40(1):5-8.Bi H Q,Lei B,Zhang W H.Numerical calculation for turbulent flow around TR maglev train[J].Journal of southwest jiao tong university.2005.40(1):5-8.[12] 舒信伟,谷传纲,梁习锋,等.具有流线型头部的高速磁浮列车气动性能数值模拟[J].上海交通大学学报.2006.40(6):1034-1037.Shu X W,Gu C G,Liang X F,et al. The Numerical Simulation on the Aerodynamic Performance of High-Speed Maglev Train with Streamlined Nose[J]. Journal of shang hai jiao tong university. 2006.40(6):1034-1037.
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备注/Memo
- 备注/Memo:
-
收稿日期：2011-06-24作者简介:赵庆贤，男，硕士，讲师基金项目：常州科教城院校科研基金项目(编号:K2009304);2010年常州大学教育教学改革重点课题(常大教[2010]4号)
