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针对轨道参数对机车车轮磨耗的影响问题,以D20E型内燃机车为例,借助SIMPACK软件建立了机车动力学模型。提出根据机车动力学模型、FASTSIM算法与Zobory磨耗预测模型为一体的机车车轮磨耗预测模型,并编制了相应计算程序。利用该模型,分析轨道主要参数对机车车轮磨耗的影响。结果表明:车轮磨耗深度随曲线半径增大而迅速减小;随着轨距的增加,车轮磨耗深度明显降低,磨耗分布范围有所增加;五级谱、六级谱下车轮圆周磨耗深度较四级谱下的结果低;线路等级越差,车轮磨耗分布范围越宽;轨底坡的适当减小可使得车轮磨耗有一定降低;适当减小摩擦系数对于降低轮轨磨耗是有利的。
Aiming at the influence of orbit parameters on locomotive wheel wear, taking D20E diesel locomotive as an example, the locomotive dynamics model was established with SIMPACK software. According to locomotive dynamics model, FASTSIM algorithm and Zobory wear prediction model as one of the locomotive wheel wear prediction model, and the corresponding calculation program. The model is used to analyze the influence of main orbit parameters on locomotive wheel wear. The results show that the depth of wheel wear decreases rapidly with the increase of curve radius. With the increase of gauge, the wheel wear depth decreases obviously and the wear distribution increases. The results of the spectrum are low; the worse the line grade, the wider the wheel wear distribution range; the appropriate reduction of the rail slope can make the wheel wear have a certain decrease; Appropriate to reduce the friction coefficient is beneficial to reduce wheel and rail wear.