基于参数化模型的车身结构优化设计

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• 英文论文题名：Optimization Design of BIW Based on Parametric Model
• 论文作者：王磊 ; 乔鑫 ; 刘莹
• 英文论文作者：Wang Lei ; Qiao Xin ; Liu Ying ; Brilliance Automotive Engineering Research Institute
• 年：2016
• 作者机构：华晨汽车工程研究院前期开发部;
• 论文关键词：参数化模型 ; 结构优化 ; 轻量化 ; SFE Concept
• 英文论文关键词：parametric model ; structure optimization ; lightweight ; SFE concept
• 会议召开时间：2016-10-26
• 会议录名称：2016中国汽车工程学会年会论文集
• 英文会议录名称：Proceedings of 2016 SAE-China Congress
• 语种：中文
• 分类号：U463.82
• 学会代码：QCGC
• 会议名称：2016中国汽车工程学会年会暨展览会
• 会议地点：中国上海
• 主办单位：中国汽车工程学会
• 学会名称：中国汽车工程学会
• 页数：6
• 文件大小：2128k
• 原文格式：O
• 会议级别：全国

摘要

本文通过参数化的车身模型进行结构优化和轻量化设计。使用SFE Concept软件建立全参数化的白车身模型,然后进行拓扑优化,提高模态和刚度性能;确定拓扑结构之后进行尺寸优化,继续提高模态和刚度性能,或者保持性能不变而降低重量;最后对厚度进行优化,保证性能满足要求的情况下重量最小。经过优化之后相比初始模型不但性能全部满足要求,同时重量减少了19.23kg。通过参数化模型可以快速地更改和验证拓扑方案,并且可以计算结构的尺寸和位置连续变化时对性能影响的趋势。研究中验证了大量的结构更改方案,对车身结构的优化和轻量化工作具有重要的现实意义和参考价值。
The structure optimization and lightweight design were carried out by using the parameterized vehicle model.A full parametric BIW model was built by SFE Concept software.Through topology optimization to improve the mode and stiffness performance.After determine the topology,through size and location optimization to improve the mode and stiffness performance,or maintain the performance and reduce weight.Finally,the thickness was optimized to ensure that minimizing weight while the performance meets the requirements.After optimization,compared with the initial model,all performances meets requirements,and the weight was reduced by 19.23 kg.Use the parameterized model,the topology structure can be changed and verified fast,the trends of effect on performance can be calculated when size and location continuous changed.Lot's of structural change schemes are verified in the research,it has important practical significance and reference value for the structure optimization and lightweight design.

引文

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    [4]王磊,刘莹,乔鑫.基于正向开发流程的车身轻量化设计[J].汽车工程学报,2015(06):461-465.