摘要
建立了高架线和路堤两种不同路况下侧风作用于列车的空气动力学模型,并进行数值计算,得到了不同侧风速和不同运行速度下列车周围压强分布及列车的气动载荷特性;同时利用SIMPACK建立高速列车动力学模型,将分析得到的气动载荷施加到动力学模型上,计算列车运行的动力学特性,研究侧风对列车运行安全性的影响;参照高速列车运行安全性相关限定指标,计算了高速动车组侧风环境下的安全行车速度。
The train aerodynamic models was established on elevated line and embankment two different road conditions and numerical calenlation are carried out the pressure distribution around and the aerodynamic character- istics of the train according to different wind speeds and train speeds were gotten. Meanwhile using the software SIM- PACK builds the high-speed train dynamics model, considering the load of crosswind into aerodynamic analysis in the model. Getting the train dynamic performance indicators, the influence of crosswind on the safety of train opera- tion is researched. According to the indicators limited by the high-speed train operation safety, the safe driving speed of high-speed EMU in the crosswind conditions were calculated.
出处
《科学技术与工程》
北大核心
2014年第3期103-107,共5页
Science Technology and Engineering
基金
国家重点基础研究发展计划(973计划)(2011CB711102)
国家高技术研究发展计划(2012AA112000)资助
关键词
高速列车
空气动力学
侧风
运行安全性
high speed train aerodynamics crosswind safety of train operation
