Aim To realize optimized construction and volume of rail wheel and axle in complex loads with finite element analysis.
目的通过对火车轮轴在复杂载荷作用下的有限元分析，实现火车轮轴结构与体积的优化。
Optimized design of rail wheel and axle is finished. Conclusion This result satisfies our national railway standard. The maximum stress is less than the yield stress.
结论实现火车轮轴的优化设计，优化后轮轴的最大应力均小于屈服应力，满足我国铁路的标准要求。
The bond graph models of wheel-rail creep forces, of free wheel set, and of two-axle vehicle are developed with associated numerical calculations.
文中建立了轮轨蠕滑力、自由轮对和两轴车的键图模型，并给出了部分数值计算的结果。
The results show that both of the wear rates of wheel and rail materials rise linearly with the increase of axle-load, and the wear rate of rail specimen is larger than wheel.
结果表明：轮轨试样磨损率均随轴重增加呈现线性增加趋势，且钢轨试样磨损率大于车轮试样磨损率。
The results show that both of the wear rates of wheel and rail materials rise linearly with the increase of axle-load, and the wear rate of rail specimen is larger than wheel.
结果表明：轮轨试样磨损率均随轴重增加呈现线性增加趋势，且钢轨试样磨损率大于车轮试样磨损率。
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