LIGHTWEIGHT AND OPTIMIZED DESIGN OF CARBON FIBER COMPOSITE FRONT BUMPER BEAM

Abstract

Abstract: In order to realize the lightweight design of the car and improve its passive safety, the front bumper beam of a car is taken as the research object. According to the regulations, the low-speed collision model of steel and carbon fiber T300/5208 was established respectively. The collision simulation was carried out and the energy absorption of the two materials was analyzed. In the HyperStudy software, the optimal Latin hypercube sampling method is used to obtain the sample points and data, and then the HyperKriging method is used to construct the approximate model. Then the genetic algorithm is used to optimize the calculation. Finally, the optimal solution is obtained and experimental verification is carried out. The optimization results show that the energy absorption of the carbon fiber material bumper beam increases by 6.4% at low speed collision, the energy absorption is about 3.7 times that of the original steel, the weight loss reaches 71.4%, and the error between the optimized result and the actual solution result is less than 1%. The energy absorption characteristics and the lightweight effect are significantly improved.

Key words: bumper beam, carbon fiber composite, design of experiments, genetic algorithm optimized design

CLC Number:

TB332

ZHANG Xin, ZHAO Xiao-yu, LAN Xiang, CHEN Ling-li. LIGHTWEIGHT AND OPTIMIZED DESIGN OF CARBON FIBER COMPOSITE FRONT BUMPER BEAM[J]. Fiber Reinforced Plastics/Composites, 2019, 0(8): 98-103.

References

[1] Zhu G, Wang Z, Cheng A, et al. Design optimisation of composite bumper beam with variable cross-sections for automotive vehicle[J]. International Journal of Crashworthiness, 2017, 22(4): 1-12.
[2] 杨旭静, 张振明, 郑娟, 等. 复合材料前防撞梁变截面多工况多目标优化设计[J]. 汽车工程, 2015, 37(10): 1130-1137.
[3] 徐中明, 徐小飞, 张志飞, 等. 保险杠安全性能仿真分析与试验研究[J]. 汽车工程, 2014, 36(3): 293-297.
[4] 乔维高, 张金虎. 吸能式保险杠的研究现状及发展趋势[J]. 汽车科技, 2009(1): 9-11.
[5] 李贝. 纤维增强型复合材料保险杠轻量化设计与优化[D]. 长沙: 湖南大学, 2016.
[6] Liu Q, Lin Y, Zong Z, et al. Lightweight design of carbon twill weave fabric composite body structure for electric vehicle[J]. Composite Structures, 2013, 97(2): 231-238.
[7] Marzbanrad J, Alijanpour M, Kiasat M S. Design and analysis of an automotive bumper beam in low-speed frontal crashes[J]. Thin-Walled Structures, 2009, 47(8): 902-911.
[8] 苏尚彬, 焦学健, 薛远水, 等. 碳纤维材料保险杠耐撞性分析及轻量化[J]. 山东理工大学学报(自然科学版), 2015, 29(3): 49-52.
[9] 吴琼. 碳纤维轿车保险杠横梁的设计[D]. 武汉: 武汉理工大学, 2014.
[10] Belingardi G, Koricho E, Martorana B. Implementation of composite and recyclable thermoplastic materials for automotive bumper subsystem[J]. International Journal of Automotive Composites, 2014(1): 67-89.
[11] 顾力强, 林忠钦, 赵亦希, 等. 轿车保险杠低速碰撞试验研究[J]. 上海交通大学学报, 2003, 37(1): 137-140.
[12] 王庆, 卢家海, 刘钊, 等. 碳纤维增强复合材料汽车保险杠的轻量化设计[J]. 上海交通大学学报, 2017, 51(2): 136-141.
[13] 程章, 朱平, 冯奇, 等. 碳纤维复合材料汽车翼子板优化设计研究[J]. 汽车工程学报, 2015, 5(5): 367-374.
[14] 张勇, 谭南林. 基于遗传算法的内燃机车优化操纵研究[J]. 电子测量与仪器学报, 2013, 27(7): 604-609.
[15] 曹立波, 陈杰, 刘适, 等. 基于碰撞安全性的保险杠横梁轻量化设计与优化[J]. 中国机械工程, 2012, 23(23): 2888-2893.
[16] Simpson T W, Poplinski J D, Koch P N, et al. Metamodels for computer-based engineering design: survey and recommendations[J]. Engineering with Computers, 2001, 17(2): 129-150.