论文部分内容阅读
运用非线性有限元分析软件ABAQUS,考虑通过直线、曲线线路和道岔3种工况,建立CRH2010A综合检测车的测力车轮与钢轨的三维滚动接触有限元模型,进行不同工况下测力车轮与钢轨的滚动接触特性及车轮辐板和轴毂的受力分析。结果表明:测力车轮的滚动接触特性与动车车轮相似;通过直线线路且轮对横移量为8mm时,产生轮缘效应,车轮磨损加剧;通过曲线线路时,左侧车轮与钢轨出现两点接触中心区;通过道岔时,左侧车轮与长心轨均发生塑性变形,车轮和钢轨的磨耗加剧;轴毂的过盈连接对轮轨接触特性的影响,远小于其对轴毂连接区域和辐板加工区域应力的影响;在这3种工况下测力车轮均满足静强度要求。
By using the nonlinear finite element analysis software ABAQUS, the three-dimensional rolling contact finite element model of the wheel and the rail of the CRH2010A integrated test car is established considering the three working conditions of straight line, curved line and turnout, Rolling contact characteristics of rails and force analysis of wheel webs and hubs. The results show that the wheel rolling contact force of the dynamometer wheel is similar to that of the vehicle wheel. The wheel flange effect is produced by the straight line when the wheelset traverse distance is 8mm. The wheel wear is aggravated. When passing through the curve line, two points appear on the left wheel and the rail The contact center area; When the turnout, the left wheel and the long mandrel are plastically deformed, the wheel and rail wear increased; hub interference connection wheel and rail contact characteristics is much smaller than its hub and hub connection area and The influence of the stress in the processing area of the web; the load-measuring wheels meet the static strength requirements in these three conditions.