准高速客车运行阻力的试验研究

Study on the Running Resistance of Quasi high Speed Passenger Trains

通过在广深线进行的运营旅客列车的运行阻力试验，提出了单层准高速客车和双层准高速客车（以下简称“单客”和“双客”）的运行单位基本阻力计算公式，通过与在铁道部科学研究院环行试验线进行的起动加速试验数据的比较，验证了推导公式的合理性。从气动性能的角度分析了双客比单客运行阻力低的原因，指出了降低空气阻力的合理途径，认为要方便准确地确定客车运行阻力应分别进行空气阻力和机械阻力试验。

Using the test results of the running resistance of quasi tuigh speed passenger trains this paper presents the calautation formula for per unit running essential resistance of qeneral passeuger cars and double deck cars.The formula in verlfied through comparison with the results obtained by test loop experiments.From the point of view of air dynamics,The rcason of lower resistance with doule deck cars is analyzed.The reasonable way of reducing air resistance is pointed out.It is proposed that seperate experiments be carried out for air resistomce and mechanical resistance to facilitate accurate assessment of passenger train running resistance.