铁道科学与工程学报2017，Vol.14Issue(5)：885-891,7.
高速列车车体的灵敏度分析及轻量化设计
Sensitivity analysis and lightweight design for high-speed train car body
摘要
Abstract
Aluminum alloy car body of a high-speed train is taken as the research subject, the stress and displacement sensitivity of the key parts are analyzed for the car body based on finite element analysis of the static strength and modal characteristics, in which the thickness of main profile structure, such as the roof, top side sill, side wall and floor etc are considered as the influence factors. Based on the sensitivity analysis results, the lightweight model of the car body is determined with the thickness variables of the roof, top side sill and side wall. The optimization design is carried out and the optimization result shows that the total mass of the car body is reduced by 6.64%, which achieves the effective lightweight. Furthermore, the strength, stiffness and modal frequency for the optimal car body reach the design target.关键词
铝合金车体/灵敏度分析/尺寸优化/轻量化Key words
aluminum alloy car body/sensitivity analysis/size optimization/lightweight分类
交通工程引用本文复制引用
高月华,石晓飞,谢素明,杜礼明..高速列车车体的灵敏度分析及轻量化设计[J].铁道科学与工程学报,2017,14(5):885-891,7.基金项目
辽宁省自然科学基金资助项目(2015020120) （2015020120）
中国铁路总公司科技研究开发计划资助项目(2014J004-N) （2014J004-N）
辽宁省自然科学基金优秀人才培育资助项目(2014028020) （2014028020）
牵引动力国家重点实验室资助项目(TPL1402) （TPL1402）
大连市高层次人才创新支持技术资助项目(2015R075) （2015R075）
