摘要
列车交会空气压力波是高速轨道交通特有的空气动力学问题,它对高速轨道运输行车安全、旅客舒适度均产生重大影响。讨论了列车交会空气压力波数值计算方法、动模型及在线实车试验技术,论述了非对称滑移网格技术。根据对我国提速,200km/h速度等级及其以上高速列车进行计算、试验和理论分析,建立了列车交会压力波与运行速度、复线间距、车体宽度、附面层、外形以及编组方式等之间的关系,讨论了列车交会行车安全评估方法,提出了我国既有线上各种列车车体和车窗结构承受瞬态交会压力冲击安全运行极限值。
The asymmetrical slippage grid technique,the numerical computation,the moving model test,and the full-scale train test for air pressure pulse from trains passing each other are introduced.And the relations between the air pressure pulse and the train speed,the track interval,the car-body width,the boundary layer,the train shape,the train configuration are builded on the basis of the results of numerical computation,test and theoretical analysis about the speed-improving train,the 200 km/h train and the train above 200 km/h.The evaluating method about driving safety from trains passing each other is discussed.And the limit value of train body and its windows endured the transient load of pressure impact at two trains passing each other is obtained.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2004年第1期83-89,共7页
Journal of Railway Science and Engineering
关键词
车辆工程
高速轨道交通
空气压力波
列车交会
流线型外形
非对称滑移网格技术
high-speed rail transportation
air pressure pulse
two trains passing each other
streamlined car shape
asymmetrical slippage grid technique
