摘要
根据压力波的传播、反射和叠加原理,提出了交会产生最大压力变化幅值的隧道长度和进入时差的快速算法,并通过三维仿真计算,对京沪高速铁路运营的长编组动车组350—350km/h临界隧道交会工况进行了计算,获得了该型动车组350km/h等速临界隧道交会时各部位压力波波形以及变化幅值的量值。
In the paper, the calculation methods of the critical tunnel crossing for the maximum pressure variations was deduced according to the principle of transmit, reflection and superposition. And typical operating conditions in Beijing--Shanghai high-speed railway of two long consist trains critical crossing at the speed of 350/350 km/h in tunnel were calculated by numerical simulation, through which the pressure change wave of train outside and its variation magnitude were obtained.
出处
《铁道机车车辆》
2013年第1期58-62,共5页
Railway Locomotive & Car
基金
铁道部科技开发基金项目(2010J001-E)
关键词
空气动力学
隧道
压力波
临界交会
数值模拟
aerodynamic
tunnel
air pressure wave
critical crossing
numerical simulation
