导轨式胶轮车底架结构拓扑优化  

Topology Optimization of Underframe Structure of Rail-Guided Rubber-Tyre Vehicle

作　　者：欧士玺 朱亮 OU Shixi;ZHU Liang(CRRC Nanjing Puzhen Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]中车南京浦镇车辆有限公司,南京210000

出　　处：《智慧轨道交通》2022年第4期30-32,42,共4页SMART RAIL TRANSIT

基　　金：安徽省重大科技专项(202103a05020033)。

摘　　要：导轨式胶轮智慧捷运系统是胶轮中小运量轨道交通的一种全新解决方案。采用“上铝下钢”的钢铝混用铆接车体,钢质底架结构制造成本低,设计时需要解决重量限制。本文介绍了导轨式胶轮车底架钢结构的设计过程,由于应力在结构中的分布不均匀,材料未充分地发挥作用,故应用渐进结构优化法对底架钢框构件拓扑设计。通过对枕梁和横纵梁的优化设计,将结构设计“最优解”进行工程设计转化“近似最优可行解”,得到轻量化底架钢结构,实现了底架结构减重17.8%。Rail-guided rubber-tyre smart rapid transport system is a new solution for small and medium capacity rail transportation on rubber wheels.Adopting the“top aluminum bottom steel”steel and aluminum hybrid riveted body,the steel underframe structure has low manufacturing cost,and the weight limit needs to be solved in the design.The design process of the underframe steel structure of the railroad rubber wheel car is introduced.Due to the uneven distribution of stress in the structure,the material is not fully functional,so the topological design of the underframe steel frame members is applied to the progressive structural optimization method.By optimizing the design of sleeper beam and cross and longitudinal beams,the“optimal solution”of structural design is transformed into“approximate optimal feasible solution”for engineering design,and the lightweight underframe steel structure is obtained,which achieves 17.8%weight reduction of the underframe structure.

关 键 词：拓扑设计 底架 轻量化 渐进结构优化 钢结构 

分 类 号：U270.3[机械工程—车辆工程]