提高货车轴重是发展大型货车的途径之一,但由此将导致轮轨接触应力的增大,造成轮轨塑性变形和磨耗加剧。因此必须对轮轨接触的一些特性进行研究,寻求解决问题的途径。迄今工业发达国家对轮轨接触特性做了许多理论分析和模拟试验,但还未能实 Increasing the axle load of freight cars is one of the ways to develop large-scale trucks. However, this will lead to the increase of wheel-rail contact stress, resulting in plastic deformation and wear of the wheel rail. Therefore, some characteristics of the contact between the wheel and the rail must be studied to find a solution to the problem. So far, the developed countries in the industrialized countries made many theoretical analyzes and simulation tests on the wheel-rail contact characteristics but have not yet done so