Crashworthiness and lightweight design of a S-shaped thin-walled beam based on the modification of structure and material parameters

PDF(885 KB)

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (18) : 115-120.

FAN Lulu，YOSHINO Tatsuo，LIN Ye，LIU Huan，YU Zhenglei

Author information +

History +

Abstract

A systemic investigation was done for the improvement of the crashworthiness of an automobile front rail structure, that was a S-shaped thin-walled beam with square section, by introducing inducting grooves and stiffeners, as well as by realizing lightweight design based on material properties.Eight finite element models were established according to the position distribution, number of inducting grooves and the position distribution of stiffeners.Considering the total mass as a constraint condition and geometrical parameters as design variables, the crashworthiness optimization design of the S-shaped thin-walled beam with stiffeners was carried out based on high precision surrogate models.The validity of the optimization model was verified by the comparison between simulated and theoretical force-displacement curves.The material of the stiffeners was changed to magnesium-aluminum alloy to realize lightweight design.The results provide a novel strategy for crashworthiness optimization and lightweight design of thin-walled beam structures.

Key words

crashworthiness / lightweight / S-shaped thin-walled beam / inducting groove / stiffener / multiobjective optimization

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

FAN Lulu，YOSHINO Tatsuo，LIN Ye，LIU Huan，YU Zhenglei. Crashworthiness and lightweight design of a S-shaped thin-walled beam based on the modification of structure and material parameters[J]. Journal of Vibration and Shock, 2018, 37(18): 115-120

References

[ 1 ] 周华志，王志瑾，韩微，等. 具有褶皱薄弱段的正弦波纹梁吸能性能研究[J]. 振动与冲击, 2017, 36(17): 248-254.
ZHOU Hua-zhi, WANG Zhi-jin, HAN Wei, et al. Study of the energy absorption capability of sine waved beam with folded trigger geometry. Journal of vibration and shock, 2017, 36(17): 248-254.
[ 2 ] Zhou Y, Lan F, Chen J. Crashworthiness research on S-shaped front rails made of steel–aluminum hybrid materials [J]. Thin-Walled Structures, 2011, 49(2):291-297.
[ 3 ] 郝亮，徐涛，吉野辰萌，等.参数化诱导槽设计的吸能盒结构抗撞性多目标优化[J].吉林大学学报:工学版,2013,43(1):39-44.
Hao Liang, Xu Tao, YOSHINO Tatsuo, et al. Multi-objective optimization for crashworthiness of crash box with parameterized inducing grooves[J].Journal of Jilin University (Engineering and Technology Edition), 2013, 43 (1):39-44.
[ 4 ] Costas M, Díaz J, Romera L, et al. A multi-objective surrogate-based optimization of the crashworthiness of a hybrid impact absorber [J]. International Journal of Mechanical Sciences, 2014, 88(13):46-54.
[ 5 ] Tanlak N, Sonmez F O. Optimal shape design of thin-walled tubes under high-velocity axial impact loads [J]. Thin-Walled Structures, 2014, 84(84): 302-312.
[ 6 ] Hussain N N, Regalla S P, Rao Y V D. Comparative Study of Trigger Configuration for Enhancement of Crashworthiness of Automobile Crash Box Subjected to Axial Impact Loading[J]. Procedia Engineering, 2017, 173:1390-1398.
[ 7 ] Asanjarani A, Dibajian S H, Mahdian A. Multi-objective crashworthiness optimization of tapered thin-walled square tubes with indentations[J]. Thin-Walled Structures, 2017, 116:26-36.
[ 8 ] Kim H S, Wierzbicki T. Effect of the cross-sectional shape of hat-type cross-sections on crash resistance of an “S”-frame [J]. Thin-Walled Structures, 2001, 39 (7): 535 -554.
[ 9 ] Beik V, Fard M, Jazar R. Crashworthiness of tapered thin-walled S-shaped structures[J]. Thin-Walled Structures, 2016, 102:139-147.
[ 10 ] Zhou C, Wang B, Ma J, et al. Dynamic Axial Crushing of Origami Crash Boxes[J]. International Journal of Mechanical Sciences, 2016, 118:1-12.
[ 11 ] Fang J, Qiu N, An X, et al. Crashworthiness design of a steel–aluminum hybrid rail using multi-response objective-oriented sequential optimization[J]. Advances in Engineering Software, 2017.
[ 12 ] 任露泉.试验优化设计与分析［M］.长春：吉林科学技术出版社，2001：174-188.
[ 13 ] Shao Q, Xu T, Yoshino T, et al. Optimization of the welding sequence and direction for the side beam of a bogie frame based on the discrete particle swarm algorithm[J]. Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture, 2016.
[ 14 ] Yang G, Xu T, Li X, et al. An Efficient Hybrid Algorithm for Multiobjective Optimization Problems with Upper and Lower Bounds in Engineering [J].Mathematical Problems in Engineering, 2015, 10:1-13.
[ 15 ] Kim H S, Wierzbicki T. Closed-form solution for crushing response of three-dimensional thin-walled “S” frames with rectangular cross-sections [J]. International Journal of Impact Engineering, 2004, 30(1):87-112.