The aerodynamic performance of high-speed trains passing each other was investigated on a simply supported box girder bridge, with a span of 32 m, under crosswinds. The bridge and train models, modeled at a geometric scale ratio of 1:30, were used to test the aerodynamic forces of the train, with the help of a designed moving test rig in the XNJD-3 wind tunnel. The effects of wind speed, train speed, and yaw angle on the aerodynamic coefficients of the train were analyzed. The static and moving model tests were compared to demonstrate how the movement of the train influences its aerodynamic characteristics. The results show that the sheltering effect introduced by trains passing each other can cause a sudden change in force on the leeward train, which is further influenced by the wind and running speeds. Detailed analyses related to the effect of wind and train speeds on the aerodynamic coefficients were conducted. The relationship between the change in aerodynamic coefficients and yaw angle was finally described by a series of proposed fitting formulas.

在侧风作用下，跨度为32 m的简单支撑的箱梁桥上研究了高速列车相互通过时的空气动力学性能。在XNJD-3风洞中设计的移动试验台的帮助下，以几何比例为1:30建模的桥梁和火车模型用于测试火车的空气动力。分析了风速，列车速度和偏航角对列车空气动力学系数的影响。比较了静态模型和运动模型测试，以证明火车的运动如何影响其空气动力学特性。结果表明，相互间经过的火车引入的遮挡作用会导致背风火车上的力突然变化，而这又受到风速和行驶速度的影响。进行了有关风速和火车速度对​​空气动力学系数影响的详细分析。空气动力学系数的变化与偏航角之间的关系最终通过一系列拟定的拟合公式进行了描述。