Numerical simulation analysis method for static pressure on train and surface of tunnel during passing of extra-long double-track tunnel by high-speed train

The invention provides a numerical simulation analysis method for a static pressure on a train and the surface of a tunnel during passing of the extra-long double-track tunnel by the high-speed train.According to the technical scheme, a situation that the high-speed train with the speed of 350 km/h passes the tunnel is taken as a rudiment; streamline head car and intermediate car models are builtthrough CATIA software design and are imported into a SolidWorks software environment, and an extra-long tunnel model is built; a built train-tunnel three-dimensional digitalized model is converted into a SolidWorks Flow Simulation module, and relevant calculation parameters and boundary conditions are set to build a train-tunnel finite element model; and distribution and pressure fluctuation comparison calculation analysis of the static pressure on a train body and the inner contour surface of the tunnel is performed. 本发明提供了种高速列车过特长双线隧道时列车及隧道表面所受静压的数值模拟分析方法。本发明技术方案如下：以某型350km/h高速列车过隧道为雏形，利用CATIA软件设计建立流线型头车及中间车模型，同时导入