On crashworthiness design of double conical structures under oblique load 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
International Journal of Vehicle Design
年/卷/期
2018 / 76 / 1/4
页码
20-45
ISSN号
0143-3369
作者单位
Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China;Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China;Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China;Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China;Huaqiao Univ, Coll Mech Engn & Automat, Xiamen 361021, Peoples R China;
作者
Jiang, Feng;Chen, Tengteng;Zhang, Yong;Wang, Jin;Lu, Minghao;
摘要
A novel multi-cell tube with non-collinear outer and inner conical angles (MBCT) is proposed to enhance structural performance under different load conditions. The finite element models (FEMs) are developed and validated by experimental tests. The comparative analysis is carried out to investigate the crashworthiness of different conical structures. The results indicate that MBCT has the most desirable load characteristics and highest energy absorption capacity. Furthermore, parametric studies reveal that large outer conical angle facilitates energy absorption and desirable load characteristics. Large wall thickness, on the other hand, has conflicting effects on crashworthiness since it increases peak crushing force (PCF) but cannot improve special energy absorption (SEA). Crashworthiness assessment of a MBCT crush box in a full vehicle further indicates the merits of energy absorption of double conical structures. The study offers insights on designing energy absorbers that are both weight efficient and reliable under uncertain load conditions.
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关键词/主题词
double conical structure;crashworthiness;oblique load;energy absorption;
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