Running resistance - results and analysis of full-scale tests with passenger and freight trains in Sweden
Running resistance - results and analysis of full-scale tests with passenger and freight trains in Sweden
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运行阻力——瑞典客货列车全尺寸试验结果与分析
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
P. Lukaszewicz
中科院分区：
文献类型：
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作者：
P. Lukaszewicz
本文介绍了行车阻力试验的试验结果。确定了常规旅客列车、货运列车和X2高速列车的运行阻力。研究了车速、车轴数、车厢数、轴重、轨道类型和列车长度等变量对系统性能的影响。运行阻力用二次多项式表示为一般形式。多项式中的三项是这些变量的函数。第一项的大小与速度无关，并随轴数、轴重和轨道类型的不同而变化。第二个术语随着速度和列车长度的不同而变化。没有区分轴重的影响。第三项与空气阻力有关，并随速度平方和列车配置而变化。它可以分为两个部分。一部分是恒定的，取决于列车的前部和尾部，另一部分随着列车长度近似线性增加。
Abstract This paper presents experimental results of running resistance tests. Running resistance is determined for conventional passenger trains, freight trains, and the X2 high-speed train. The influence of variables such as speed, number of axles, number of coaches, axle load, track type, and train length is studied. The running resistance is expressed in a general form by a second degree polynomial. The three terms in the polynomial are functions of these variables. The magnitude of the first termis speed independent and varies with number of axles, axle load, and type of track. The second term varies with speed and train length. No influence of axle load is distinguished. The third term is related to the air drag and varies with the speed squared and train configuration. It can be divided into two parts. One part is constant and depends upon the front and rear of the train, and another part increases approximately linearly with train length.