Crashworthiness optimisation design of novel nested structures

IF 1.8 4区工程技术 Q3 ENGINEERING, MANUFACTURING International Journal of Crashworthiness Pub Date : 2023-10-24 DOI:10.1080/13588265.2023.2272307

Yonghui Wang, Qiang He, Xiao Chen

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Abstract

AbstractIn order to improve the crashworthiness of the novel circular-vein branched nested tube (CVBNT) proposed in recent research work, the crashworthiness design is optimised in this paper. Based on numerical simulation technology, the finite element model under transverse quasi-static compression of CVBNT is first established and effectively verified. Then, the energy absorption characteristics of CVBNT and different nested tubes were compared and analysed to reveal the excellent energy absorption performance of CVBNT. Finally, the structural design and the cross-sectional thickness optimisation of CVBNT are carried out. The results show that CVBNT has better energy absorption capacity than other nested tubes. The parameters N and γ have an important influence on the crashworthiness of CVBNT, and when N = 6, γ = 0.5 is the best choice in favour of its crashworthiness. At the same time, the optimisation of cross-section thickness effectively improves the crashworthiness of CVBNT.Keywords: Nested structurecrashworthinessenergy absorptionnumerical simulationoptimization design Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research is supported by The National Natural Science Foundation of China (No. 51705215), The Graduate Student Scientific Research Innovation Projects in Jiangsu Province (NO. KYCX21_3444).

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新型嵌套结构的耐撞性优化设计

摘要为了提高近年来研究提出的新型圆静脉支套管(CVBNT)的耐撞性，对其耐撞性设计进行了优化。基于数值模拟技术，首次建立了CVBNT横向准静态压缩的有限元模型，并进行了有效验证。然后，对比分析了CVBNT和不同嵌套管的吸能特性，揭示了CVBNT优异的吸能性能。最后，进行了CVBNT的结构设计和截面厚度优化。结果表明，CVBNT比其他嵌套管具有更好的吸能能力。参数N和γ对CVBNT的耐撞性有重要影响，当N = 6时，γ = 0.5是有利于CVBNT耐撞性的最佳选择。同时，截面厚度的优化有效地提高了CVBNT的耐撞性。关键词:嵌套结构价值能量吸收数值模拟优化设计披露声明作者未报告潜在利益冲突。项目资助:国家自然科学基金项目(No. 51705215);江苏省研究生科研创新项目(No. 51705215);KYCX21_3444)。

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来源期刊

International Journal of Crashworthiness 工程技术-工程：机械

CiteScore

3.70

自引率

10.50%

发文量

审稿时长

2.3 months

期刊介绍： International Journal of Crashworthiness is the only journal covering all matters relating to the crashworthiness of road vehicles (including cars, trucks, buses and motorcycles), rail vehicles, air and spacecraft, ships and submarines, and on- and off-shore installations. The Journal provides a unique forum for the publication of original research and applied studies relevant to an audience of academics, designers and practicing engineers. International Journal of Crashworthiness publishes both original research papers (full papers and short communications) and state-of-the-art reviews. International Journal of Crashworthiness welcomes papers that address the quality of response of materials, body structures and energy-absorbing systems that are subjected to sudden dynamic loading, papers focused on new crashworthy structures, new concepts in restraint systems and realistic accident reconstruction.