面向轨道交通行业列车运行轮—轨维护前沿领域目前存在的根本性、共性问题：缺乏对钢轨和车轮机加工后表面完整性要求规范；对不同程度损伤钢轨打磨、车轮镟修工艺方式和参数选择缺乏依据；缺乏对应高速客运和重载货运的钢轨与车轮表面结构匹配规范；缺乏钢轨和车轮材料本构关系等，开展填补空白性和补充性研究。对应高速客运预防性打磨或重载货运铁路钢轨的修复性打磨机加工以及车轮修复机加工的特殊性工况，提出钢轨和车轮加工表面完整性主动设计概念和依据；设计和实施大量实验，获取钢轨、车轮主要材料从室温到加工范围内高温的热物性和动态特性数据，建立钢轨和车轮材料本构模型；通过实验和有限元模拟，获取预防性和修复性打磨加工钢轨以及镟修车轮的砂轮、刀具设计和加工工艺设计依据，提出修复钢轨与车轮表面结构合理匹配，建立修复后的车轮和钢轨对磨噪声信号特征与耦合组表面损耗类型和程度的映射关系。

Facing the fundamental and common problems in steel rail and train wheel maintenance field, such as: the lack of specification on rail and wheel machined surface integrity; the lack of selection basis on machining process and parameter of rail grinding and the wheel turning; the lack of rail and wheel surface structure matching specifications corresponding high-speed passenger transport and heavy freight transport; the lack of rail and wheel material constitutive relation, etc., to develop the new research. Facing the special processing conditions corresponding the preventive and corrective maintenance grinding of high-speed passenger transport or heavy freight transport railway, as well wheel repair machining, present the machined surface initiative design concept and basis for rail and wheel machining; design and carry out a large number of experiments, acquire the thermal physical property data and dynamic characteristic data of rail and wheel material, build the rail and wheel material constitutive model; through experiment and finite element simulation, obtain the design basis of grinding wheel and cutting tool as well the processes corresponding preventive and corrective maintenance machining respectively; put forward the reasonable matching of rail and wheel surface structures; set up the mapping relation between the noise signal of repaired wheel —rail frication and the wear type and degree of surface coupling.