基于敏度信息的铝型材高速车体轻量化研究  

Research on Weight Lightening of the High-speed Aluminum-profile Car Body Based on Sensitivity Information

作　　者：谢素明[1] 闫雪冬[2] 兆文忠[1] 

机构地区：[1]大连铁道学院车辆工程CAD/CAE技术中心,辽宁大连116028 [2]长春轨道客车股份有限公司研发中心,吉林长春130062

出　　处：《铁道学报》2004年第3期26-30,共5页Journal of the China Railway Society

基　　金：国家高技术研究发展计划(863计划)项目(2002AA411320)

摘　　要：针对通用优化算法难于对铝型材高速车车体进行轻量化这一现状,本文在创建了一个可靠的有限元分析模型之后,基于敏度分析技术,给出了一系列关于设计变量的导数信息。这些导数信息与设计专家知识以及成功经验相结合,最终提出了一个新的结构减重方案。该方案不仅可行,降低重量13.5%,而且为基于知识的设计提供了一个成功的案例。In view that the weight of the high-speed aluminum-profile car body is hard to be lightened with general optimized calculation, a realiable finite element analysis model is established and a series of derivative information about design variations is presented on the basis of the sensitivity analysis technique. Combination of the information, expertise and successful design experience gives rise to a new scheme of structural weight lightening. The scheme is not only a feasible design by reducing 13.5% of the weight but also a successful case for KBD.

关 键 词：车辆工程 铝型材车体 轻量化 敏度分析 

分 类 号：U270.2[机械工程—车辆工程]