和谐号CRH380动车组列车车内压力测试与分析

开发了一种车载无线压力测试系统,对和谐号CRH380动车组的车内空气压力进行长期跟踪,系统地分析了该动车组在明线、隧道、会车等不同运营线路状态下的空气压力变化情况.结果 表明,动车组列车通过明线时,车内各测点压力波动特征值变化趋势基本一致,且车内压力波动与运营里程、镟修周期关系不大;动车组列车以相同运行速度通过不同长度...

Test and Analysis of Internal Pressure of Har-mony CRH380 EMU

An on-board wireless pressure test system is developed to keep long-term tracking of the air pressure in Harmony CRH380 EMU train,and systematically analyze the air pressure changes of the EMU train under different operating line conditions,such as open line,tunnel and meeting.The results show that when the EMU train passes through open line,the variation trend of pressure fluctuation characteristic values at each measuring point on the train is basically the same,and that has little relationship with the operating mileage and lathing cycle;When EMU trains pass through tunnels with different lengths at the same operating speed,the internal pressure differences and the 3S pressure change rate in the train all meet the requirements of relevant air pressure comfort standards.Obviously,the open line meeting has little impact on the internal pressure of EMU train.