An engineering model for prediction of rolling contact fatigue of railway wheels
An engineering model for prediction of rolling contact fatigue of railway wheels
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DOI：
10.1046/j.1460-2695.2002.00535.x
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发表时间：
2002-10-01
影响因子：
3.7
通讯作者：
Andersson, H
中科院分区：
文献类型：
--
作者：
Ekberg, A;Kabo, E;Andersson, H
开发了铁路车轮滚动接触疲劳（RCF）的工程模型。车轮中三种众所周知的疲劳类型——表面引发的疲劳、次表面引发的疲劳和深层材料缺陷引发的疲劳——均被考虑在内。疲劳影响通过以分析形式表示的三个疲劳指数来量化。该模型可以轻松集成到多体动力学代码中，而不会显着增加计算需求。应该会产生一个针对疲劳性能优化火车轨道配置的强大工具。本文介绍了该模型的理论基础、优点和局限性。给出了对列车与轨道相互作用的动态模拟数据进行后处理分析的示例。
An engineering model for rolling contact fatigue (RCF) of railway wheels is developed. Three well-known types of fatigue in wheels - surface-initiated fatigue, subsurface-initiated fatigue and fatigue initiated at deep material defects - are accounted for. Fatigue impact is quantified by three fatigue indices expressed in analytical form. The model can easily be integrated in a multibody dynamics code without significantly increasing computational demands. A powerful tool for optimizing train-track configurations with respect to fatigue performance should result. In this paper, theoretical foundations, benefits and limitations of the model are presented. An example of a postprocessing analysis of data from a dynamic simulation of train-track interaction is given.