基于多目标的纯电汽车全铝车身轻量化设计  

LIGHTWEIGHT DESIGN OF ELECTRIC VEHICLE WITH ALLALUMINUM BODY BASED ON MULTI-OBJECTIVE

作　　者：何君儒 谢世坤 吁安山 HE Jun-ru;XIE Shi-kun;YU An-shan(Jiangxi Jiangling Group New Energy Vehicle co.LTD,Nanchang,Jiangxi 330052,China;School of Mechanical and Electrical Engineering,Jinggangshan University,Ji’an,Jiangxi 343009,China;Key Laboratory of Light Alloy Materials of Ji’an City,Ji’an,Jiangxi 343009,China)

机构地区：[1]江西江铃新能源汽车有限公司,江西南昌330052 [2]井冈山大学机电工程学院,江西吉安343009 [3]吉安市轻合金材料重点实验室,江西吉安343009

出　　处：《井冈山大学学报（自然科学版）》2023年第1期85-89,共5页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(51165010);江西省自然科学基金课题(20181BAB206028);江西省教育厅科学技术研究重点项目(GJJ2201606);吉安市重大科技专项(吉财教指〔2020〕83号)。

摘　　要：为了提高全铝车身整体轻量化水平,提高纯电汽车续航里程,在汽车概念设计阶段引入轻量化开发理念。首先利用SFE参数化建模软件,建立全铝车身的参数化模型;进一步结合车身灵敏度分析及Isight集成优化技术找出对刚度、模态、安全等性能目标参数影响明显的零部件,确定各零部件对性能的敏感程度,再进行多学科优化分析。结果表明:通过优化分析,白车身质量减轻5.3 kg,整体性能水平满足设计要求,达到轻量化目标。In order to improve the overall lightweight level of all-aluminum body and improve the range of pure electric vehicle,the concept of lightweight development was introduced in the concept design stage of the vehicle.Firstly,the parametric model of aluminum body is established by SFE parametric modeling software.Furthermore,the body sensitivity analysis and Isight integrated optimization technology were combined to find out the parts which had obvious influence on the performance target parameters such as stiffness,modal and safety,and determine the sensitivity of each part to performance,and then the multidisciplinary optimization analysis was carried out.The results showed that after optimization analysis,the mass of body-in-white is reduced by 5.3kg,the overall performance level meets the design requirements,and the lightweight target is achieved.

关 键 词：SFE参数化建模 全铝车身 轻量化 

分 类 号：TH16[机械工程—机械制造及自动化]