【摘要】 为了使赛车转向系统能够获得最优性能，针对赛车的行驶特点和转向系统要求，建立了大轮辋条件下的FSAE赛车转向系统设计流程，完成了转向系统参数设计及转向梯形的优化。通过有限元方法对齿轮齿条进行了强度校核。结果表明：优化后的转向梯形结构能够更好地利用大尺寸轮胎的内部空间，实现转向性能的最优化。以TC4为齿轮齿条材料，其抗拉强度为950 MPa，屈服强度为880 MPa，符合设计要求。该设计流程能够为大学生方程式赛车转向系统的设计提供理论指导。更多还原

【Abstract】 In order to get the best performance out of the racing car’s steering system, this paper establishes the design process of FSAE racing steering system under large rim condition according to the driving characteristics and steering system requirements, and completes the optimization of steering system parameters and steering ladder. The strength of the gear rack is checked by the finite element method. The results show that the optimized steering trapezoidal structure can make better use of the internal space of large-size tires to optimize the steering performance. TC4 is used as the gear rack material, its tensile strength is 950 MPa, its yield strength is 880 MPa, which meets the design requirements. This design process can provide theoretical guidance for the design of the steering system for college students.更多还原