某地铁车体防爬器结构轻量化研究

Lightweight Research on Anti-creeper’s Structures of Subway Car Body

依据某地铁车体防爬器的初始结构,分别建立两种不同形状的有限元分析模型,利用HyperMesh仿真软件进行静强度分析计算,在此基础上对应力富余比较多的结构依次进行拓扑优化和尺寸优化。考虑实际制造加工及外形美观等因素,在满足静强度要求的前提下确定最终方案,实现防爬器结构减质量46.0%。

According to the initial structure of the anti-creeper for subway car body,two finite element analysis models in different shapes are established.The static strength analysis and calculation are carried out by HyperMesh.Based on the result as above,topology optimization and size optimization are sequentially performed on the structure with more stress surplus.Considering the actual manufacturing and appearance factors,the final scheme is determined on the premise of meeting the static strength requirements so as to realize the weight decease of the anti-creeper structure by 46.0%.