通过对钢轨和车轮的ansys有限元建模，分析在钢轨的接头处的动力学特性。-Rail and wheel ansys finite element modeling, analysis of the dynamics of the rail joints.

这是关于城市轨道交通供变电的设计内容，大致说明了在设计中应该有的知识。-This is the design of urban rail transit for the substation, generally should have knowledge in the design.