基于全球定位系统测速的城市轨道交通列车运行阻力研究

Running Resistance of Urban Rail Transit Train Based on GPS Velocity Measurement

为了测定城市轨道交通列车的运行阻力特性,利用GPS(全球定位系统)测速测距方法,对列车进行运行阻力试验,得出该列车的单位基本运行阻力公式及运行阻力大小。通过能耗计算,验证了利用GPS信号进行列车运行阻力特性测试方法的有效性。与近年国内其他同类型列车的单位基本运行阻力对比,该列车具有较好的运行特性。

Urban rail transit section in a city is normally a 6 marshalling vehicles in total, consisting of 4 trailers and 2 motor cars. GPS(global positioning system) velocity and ranging method is used to measure the train running resistance characteristics, the unit base train running resistance formula and the resistance data are obtained. Through energy consumption calculation, the availability of rail transit adopts GPS signal for running resistance measurement is verified. Compared with the base train running resistance of the same type vehicles in other Chinese cities, the rail transit vehicle adopts GPS system has better operational performance.