基于Optistruct的地铁车顶骨架有限元强度分析及优化  

Finite Element Strength Analysis and Optimization of Metro Roof Frame Based on Optistruct Software

作　　者：胡雯丽[1] 周劲松[1] 谢晓波[1] 李卓[1] 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《佳木斯大学学报（自然科学版）》2012年第2期161-166,共6页Journal of Jiamusi University：Natural Science Edition

基　　金："十一五"国家科技支撑计划(2009BAG11B02)

摘　　要：为了对某新型地铁车顶骨架结构进行优化,在十二个工况下对其进行了结构静强度分析,根据各工况的应力分布情况,找出了应力集中的位置并分析其产生的原因,利用OptiStruc优化工具提出了六种优化方案,根据优化尺寸再次进行强度分析,分析结果显示方案一车架骨架在满足应力的要求下,整体结构挠度最小.通过对车顶骨架优化的应力对比,表明提出的优化方案是可行性的.For a new metro roof frame structure optimization,the Structural strength analysis under twelve working conditions was carried out according to the condition of stress distribution.The stress concentration position was found and its causes were analyzed.Six kinds of optimization scheme were proposed using OptiStruc optimization tools.Strength analysis was carried out again according to the optimized size,A conclusion that in scheme one the structure quality greatly reduced while having sufficient strength was given.

关 键 词：地铁车顶骨架 有限元 静强度评定 优化设计 

分 类 号：TP202.1[自动化与计算机技术—检测技术与自动化装置] O242.21[自动化与计算机技术—控制科学与工程]