随着机车的重载高速发展,对车体结构的承载能力要求越来越高,同时又对车体重量进行限制,承载能力和轻量化成了车体结构设计的一对矛盾。因此,必须设计性能优良的车体结构,使其既满足承载能力的要求,又实现轻量化的目的。 With the rapid development of overloading of locomotives, the carrying capacity requirements of the car body structure are getting higher and higher, meanwhile, the weight of the car body is limited. The carrying capacity and light weight have become a pair of contradictions of the car body structure design. Therefore, it is necessary to design a vehicle body structure with excellent performance so as to meet the requirements of carrying capacity and achieve the purpose of light weight.