Multi-objective robust optimization of foam-filled double-hexagonal crash box using Taguchi-grey relational analysis

IF 1.9 4区工程技术 Q3 ENGINEERING, MECHANICAL

Advances in Mechanical Engineering Pub Date : 2023-08-01 DOI:10.1177/16878132231189070

Feng Xiong, Zhanfei Wang, D. Wang, L. Ji, Hang Wu, Xihong Zou

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引用次数: 0

Abstract

In this paper, a novel thin-walled double-hexagonal crash box is first proposed and then multi-objective robust optimized for better overall crashworthiness under multi-angle impact loading, using a proposed hybrid method combining aluminum foam-filling and Taguchi-grey relational analysis (GRA). Specifically, the finite element (FE) models of the regularly-shaped double-hexagonal column (DHC) extracted from original irregularly-shaped crash box under multi-angle impact loading, including hollow (H-DHC) and foam-filled (F-DHC), are first built and validated by experiments. On this basis, a comprehensive crashworthiness comparison is conducted to explore relative merits of F-DHC over original H-DHC under multi-angle impact loading. After that, the F-DHC is multi-objective robust optimized for maximizing overall specific energy absorption (SEAθ) and minimizing overall initial peak crushing force (IPCF0) simultaneously under multi-angle impact loading, using a hybrid method of Taguchi-GRA. At last, a bumper-crash box integrated crashworthiness analysis under multi-angle impact loading is executed to further verify the optimization. The optimal F-DHC and the optimized crash box within the optimal F-DHC demonstrate evident improvement of crashworthiness compared to their respective initial designs, indicating aluminum foam-filling combined with Taguchi-GRA could be an effective approach for multi-objective robust optimization of the novel crash box and other similar vehicle structures.

查看原文本刊更多论文

基于田口灰关联分析的泡沫填充双六边形碰撞箱多目标鲁棒优化

本文首先提出了一种新型薄壁双六边形防撞箱，然后采用泡沫铝填充和田口灰色关联分析相结合的混合方法，对其进行了多目标鲁棒优化，以提高其在多角度冲击载荷下的整体耐撞性。具体而言，首先建立了从原始不规则形状碰撞箱中提取的规则形状双六方柱（DHC）在多角度冲击载荷下的有限元模型，包括空心（H-DHC）和泡沫填充（F-DHC），并通过实验进行了验证。在此基础上，对F-DHC在多角度冲击载荷下的耐撞性进行了综合比较，探讨了F-DHC相对于原H-DHC的相对优点。之后，使用田口GRA的混合方法，对F-DHC进行了多目标鲁棒优化，以在多角度冲击载荷下同时最大化总比能量吸收（SEAθ）和最小化总初始峰值压碎力（IPCF0）。最后，对保险杠碰撞箱在多角度冲击载荷下的整体耐撞性进行了分析，进一步验证了优化效果。与各自的初始设计相比，最优F-DHC和优化F-DHC中的优化碰撞箱的耐撞性明显提高，表明泡沫铝填充与田口GRA相结合可能是对新型碰撞箱和其他类似车辆结构进行多目标鲁棒优化的有效方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Mechanical Engineering 工程技术-机械工程

CiteScore

3.60

自引率

4.80%

发文量

353

审稿时长

6-12 weeks

期刊介绍： Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering