用轴对称模型分析铁道机车车辆车轮强度的可行性

为了验证具有轴对称结构的车轮使用轴对称模型进行强度分析的可行性,根据国际铁路联盟标准UIC510—5规定的计算载荷和载荷工况,建立铁道机车车辆车轮轴对称模型与三维模型,对其强度进行分析。计算结果表明,轴对称模型与三维实体模型在车轮辐板区域的von_Mises应力比值的变化范围为0.96~1.045,且用轴对称模型算出的应力值大于用三维实体模型算出的应力值,用轴对称模型分析车轮的应力分布满足工程应用要求。

Feasibility of using axisymmetric model to analyze the railway vehicle wheel strength

In order to verify the feasibility of using axisymmetric model to analyze the strength of an axisymmetric wheel,according to the calculation load and load conditions given by International Railway Union standards UIC510-5,the strength of the railway vehicle wheel was analysed through building the axisymmetric model and three-dimensional model respectively.The calculated result shows that the spoke stress ratio goes between 0.96-1.045,and the stress of axisymmetric model is biger than one of three-dimensional model.As a result,the analysis of the strength of the wheel by axisymmetric model can satisfy the application requirements.