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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >High-frequency vertical wheel-rail contact forces-Field measurements and influence of track irregularities
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High-frequency vertical wheel-rail contact forces-Field measurements and influence of track irregularities

机译：高频垂直轮轨接触力-现场测量和轨道不平整的影响

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摘要

Field measurements of vertical wheel-rail contact forces in the frequency range 0-2000 Hz are reported. Instrumented wheels are employed together with a new method for signal processing including suppression of disturbing wheel resonances. Four different classes of rail irregularities are identified which all require consideration of high-frequency dynamics when evaluating wheel-rail contact forces. Ten stretches of Swedish track were selected for inspection and measurement of rail irregularities. The expected correlation between rail corrugation and measured dynamic forces is confirmed. It is found that high-frequency dynamics in the range 100-1250 Hz contributes significantly to contact forces which are important in the development of rolling contact fatigue. The present application is to high-speed trains on the Swedish track network with its mixed passenger and freight traffic. However, the method makes it possible to assess the level of high-frequency wheel-rail contact forces for all types of train traffic and could be used for a quantitative analysis of a complete railway network.
机译：报告了在0-2000 Hz频率范围内的垂直轮轨接触力的现场测量结果。仪表轮与一种新的信号处理方法一起使用，包括抑制干扰轮共振的信号处理。确定了四类不同的轨道不规则性，在评估轮轨接触力时都需要考虑高频动力学。选择了十条瑞典轨道以检查和测量铁路不平顺性。轨道波纹与测得的动力之间的预期相关性得到确认。已经发现，在100-1250Hz范围内的高频动力学显着地有助于接触力，这在滚动接触疲劳的发展中是重要的。本申请涉及瑞典的轨道网络上的高速列车，其客运和货运交通混合。但是，该方法可以评估所有类型火车交通的高频轮轨接触力水平，并且可以用于对完整铁路网络进行定量分析。

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