CRH3动车组单车隧道压力波特性估算

采用国内研制的高速列车通过隧道时压力波计算程序,模拟了特定隧道条件下CRH3动车组单车隧道压力波的基本特性,给出了隧道内、车头车尾处的压力波分布情况,以及对应车内处3 s内最大压差值等随车速变化的规律。同时,比较了动车组在德国和我国隧道条件下压力波的异同点。

Estimation of Pressure Wave Features of a Single Vehicle of CRH3 Multiple Units in Tunnel

The calculation program developed in China for the pressure wave at the time of a high speed train passing a tunnel is used to simulate the basic pressure wave features of a single Vehicle of CRH3 multiple units in tunnel under specific tunnel conditions.The distribution of pressure wave inside tunnel,at the head and end of the train,as well as the regular changing pattern of the maximum pres- sure difference values along with the train speed at corresponding points inside the train within 3 s,are given.In the mean time,the simularities and differ- ences of pressure waves while the multiple units be- ing under the German and Chinese tunnel conditions are compared.