Study on Lightweight Design of Integrated Mega-casting Aluminum Alloy Vehicle Body Components

被引：0

作者：

Liu, Bo ^{[1
,2
]}

Tang, Yongxin ^{[1
,2
]}

Wu, Yi ^{[1
,2
]}

Wang, Ziyang ^{[1
,2
]}

Yang, Qin ^{[3
]}

Hu, Tiegang ^{[3
]}

Xu, Xiaomin ^{[3
]}

机构：

[1] School of Mechanical Engineering, University of Science and Technology Beijing, Beijing

[2] Beijing Key Laboratory of Lightweight Metal Forming, Beijing

[3] Chongqing Chang’an Automobile Co. ，Ltd., Chongqing

来源：

Qiche Gongcheng/Automotive Engineering | 2024年 / 46卷 / 12期

关键词：

lightweight vehicle body; mega-casting aluminum alloy; structural design; topology optimization;

D O I：

10.19562/j.chinasae.qcgc.2024.12.002

中图分类号：

学科分类号：

摘要：

In recent years，mega-casting aluminum alloy structures have gradually been used to replace traditional stamping-welded body-in-white structures. The study on lightweight design of mega-casting aluminum alloy rear floor structure is conduced in this paper. An equivalent analysis scheme is proposed for the analysis of mega-casting vehicle body components. Regarding the processing and performance of the mega-casting structure，the processing constraints for the design are investigated，and the heterogeneity of its material properties is clarified. Based on the topology optimization method，the design domain of the structure is analyzed and the ideal topological design is obtained. Finally，a lightweight design is carried out，achieving a 7% weight reduction while ensuring performance. The study illustrates the design and optimization process of the mega-casting vehicle body components，which has certain reference significance. © 2024 SAE-China. All rights reserved.

引用

页码：2154 / 2163

页数：9

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