Crashworthiness of coach's octagonal bionic multi-cell thin-walled tubes based on beetle elytra

被引：0

作者：

Bai F. ^{[1
]}

Zhang L. ^{[2
]}

Bai Z. ^{[2
]}

Qin Z. ^{[1
]}

Zhang Y. ^{[1
]}

Wang R. ^{[1
]}

Hu W. ^{[1
]}

机构：

[1] Chongqing Vehicle Test & Research Institute Co., Ltd., National Quality Control & Inspection Center for Coaches, Chongqing

[2] State Key Lab of Vehicle Body's Advanced Design and Manufacture, Hunan University, Changsha

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 21期

关键词：

Beetle elytron; Crashworthiness; Octagonal bionic multi-cell tube; Theoretical validation;

D O I：

10.13465/j.cnki.jvs.2019.21.004

中图分类号：

学科分类号：

摘要：

In order to improve the crashworthiness of a coach's front energy-absorbing structure, a series of coach's novel octagonal bionic multi-cell thin-walled tubes were designed through imitating microstructure of beetle elytra, and their energy absorption characteristics under axial loading were studied. Firstly, the finite element model for an octagonal multi-cell thin-walled tube was established. Then, the validity of the finite element model was verified using the simplified hyper folding element theory. Finally, the crashworthiness of an octagonal bionic multi-cell thin-walled tube and that of a traditional multi-cell thin-walled one were studied contrastively with finite element simulation. The results showed that an octagonal bionic multi-cell thin-walled tube has an excellent crashworthiness. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：24 / 30

页数：6

共 17 条

[1]

Wang X., Yan C., Qin Z., Et al., Study on bus frontal crash standards, Transport Standardization, 8, pp. 6-10, (2011)

[2]

Tan L., Tan H., Mao Z., Et al., Crashworthiness design optimization of thin-walled cylinders with different inducing grooves, Journal of Vibration and Shock, 33, 8, pp. 16-21, (2014)

[3]

Zhang Y., Xu P., Peng Y., Et al., Crashworthiness optimization of high-speed train front multi-cell energy-absorbing structures, Journal of Vibration and Shock, 36, 12, pp. 31-36, (2017)

[4]

Zhang X., Cheng G.D., Zhang H., Theoretical prediction and numerical simulation of multi-cell square thin-walled structures, Thin-Walled Structures, 44, 11, pp. 1185-1191, (2006)

[5]

Nia A.A., Parsapour M., Comparative analysis of energy absorption capacity of simple and multi-cell thin-walled tubes with triangular, square, hexagonal and octagonal sections, Thin-Walled Structures, 74, pp. 155-165, (2014)

[6]

Chen J.X., Ni Q.Q., Xu Y.L., Et al., Lightweight composite structures in the forewings of beetles, Composite Structures, 79, 3, pp. 331-337, (2007)

[7]

Chen J.X., Gu C.L., Guo S.J., Et al., Integrated honeycomb technology motivated by the structure of beetle forewings, Materials Science and Engineering: C, 32, 7, pp. 1813-1817, (2012)

[8]

Zhang L.W., Bai Z.H., Bai F.H., Crashworthiness design for bio-inspired multi-cell tubes with quadrilateral, hexagonal and octagonal sections, Thin-Walled Structures, 122, pp. 42-51, (2018)

[9]

Nia A.A., Chahardoli S., Optimizing the layout of nested three-tube structures in quasi-static axial collapse, Thin-Walled Structures, 107, pp. 169-181, (2016)

[10]

Santosa S.P., Wierzbicki T., Hanssen A.G., Et al., Experimental and numerical studies of foam-filled sections, International Journal of Impact Engineering, 24, 5, pp. 509-534, (2000)

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