基于参数优化的动车组铝合金车体轻量化设计
于庆斌王成涛夏东伟邵晴刘春艳何玲利白兆阳
Lightweight Design of EMU Aluminum Alloy Carbody Based on Parameter Optimization
YU QingbinWANG ChengtaoXIA DongweiSHAO QingLIU ChunyanHE LingliBAI Zhaoyang
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作者信息:中车长春轨道客车股份有限公司国家轨道客车工程研究中心, 130062, 长春
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Affiliation:National Engineering Research Center of Railway Vehicles, CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.04.001
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中图分类号/CLCN:U266.2
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栏目/Col:研究报告
摘要:
采用参数优化的方法，对某型动车组的铝合金车体进行轻量化设计，先通过结构优化提升车体的一阶垂弯模态频率和一阶菱形模态频率，再通过合理分配型材的蒙皮厚度、优化型材内部筋板的形式及调整型材宽度等参数优化手段，降低车体质量，满足优化目标的要求。
Abstracts:
The method of parameter optimization is adopted to carry out lightweight design of the aluminum alloy carbody of a type of EMU. The first-order vertical bending modal frequency and first-order rhombic modal frequency of the carbody are improved through structure optimization. Then, the weight of the carbody is reduced and the requirements of the optimization objectives are met through parameter optimization means such as reasonable distribution of profile skin thickness, form optimization of profile internal ribs and adjustment of profile width.
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