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轮轨的相互作用实际上是反复载荷作用下的接触问题.根据Melan定理从理论上对轮轨接触应力问题进行了安定性分析,并得到了轨头内残余应力可能存在的形式.同时,应用三维非赫兹滚动接触应力的计算软件CMEE,从数值上对轮轨接触应力问题进行了安定性分析.“,”The wheel/rail interaction is actually a contact problem subjected to repeated loads. The paper makes a shakedown analysis for wheel/rail contact problem according to Melans rule. The possible form of residual stress in rail head is also obtained. At the same time, the paper simulates the shakedown problem of wheel/rail contact with program CMEF-a software of calculating of the three-dimensional Non-Hertz rolling contact stress.