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Distribution of generated friction heat at wheel-rail contact during wheel slipping acceleration

机译:车轮打滑加速过程中轮轨接触处产生的摩擦热的分布

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This paper presents an innovative method for determining the distribution of the friction generated heat from the contact of a locomotive wheel and rail, as well as the heat partition factor, during wheel slipping of an accelerating locomotive. The new method combines the finite element analysis simulation and experimental determination of the temperature distribution in a downsized model of a wheel and rail. As a result of a virtual experiment by the finite element analysis, an empirical dependence between the temperature distribution and the heat partition factor was established. The determination of the dependence enabled finding of the exact value of the heat partition factor by the optimization procedure based on matching temperatures obtained by the virtual and real experiment.
机译:本文提出了一种创新的方法,用于确定在加速机车的车轮打滑过程中,机车车轮与轨道的接触产生的摩擦产生的热量的分布以及热量分配因子。这种新方法将有限元分析模拟和实验确定的温度分布在轮毂和轨道尺寸减小的模型中结合在一起。通过有限元分析进行虚拟实验的结果,建立了温度分布与热分配因子之间的经验依赖关系。依赖关系的确定使得能够基于由虚拟和真实实验获得的匹配温度,通过优化程序找到热分配因子的精确值。

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