基于子结构拓扑优化的大客车耐撞性改进*

doi:10.19562/j.chinasae.qcgc.2019.08.010

Abstract

Abstract: An improved design method of coach body skeleton crashworthiness based on the topology optimization of substructure is proposed. Firstly, the crashworthiness evaluation of a monocoque coach is carried out by test and simulation, and the crux of body structure deformation is analyzed. The skeleton of front driving area is extracted as the sub-structure, and its crashworthiness is analyzed for improvement with the same crash energy absorption as the equivalence condition. Then in order to control the local deformation instability of sub-structure, a topology optimization is conducted on the spatial region of sub-structure, with the peak collision force of the energy absorbing box as loading condition. Eight groups of improvement schemes are comparatively analyzed, with the up-to-the-standard scheme having the lightest mass selected for sled test verification. Finally, the scheme is incorporated into the whole vehicle structure for validating its crashworthiness improvement. The results show that the crashworthiness of vehicle is effectively improved

Key words: coach body, crashworthiness, substructure, topology optimization, sled test

Wu Changfeng, Na Jingxin, Qin Guofeng, Lu Linzhao, Yuan Zheng, Yang Jiazhou. Improvement of Coach Crashworthiness Based onTopology Optimization of Substructure[J].Automotive Engineering, 2019, 41(8): 922-926.

References

[1] 颜长征,王欣,赵东旭,等.客车正面碰撞乘员保护分析[J].机械研究与应用,2017,30(3):78-80,83.
[2] 王欣,颜长征,覃祯员,等.客车正面碰撞标准研究[J].交通标准化,2011(8):6-10.
[3] Final Publishable Report. ECBOS-enhanced coach and bus occupant safety, project No:1999-RD.11130[R]. European Commission 5th Framework,2003.
[4] MANJUNATH RAO T S. Study of frontal impact of a passenger bus[D]. England: Coventry University,2008.
[5] STEINMETZ G. A new front structure for coaches to improve their crashworthiness[C]. Proc. FISITA 2008 World Automotive Congress,2010.
[6] RESENDES R. Intelligent technologies: NHTSA's approach to future crash safety[M]. USA: National Highway Traffic Safety Administration,2007.
[7] 申福林,邓景涛,谢旭良,等.大客车正面碰撞的仿真及改进研究[J].中国公路学报,2010,23(5):113-118.
[8] 曹立波,周登科,朱结,等.全承载式客车正面碰撞安全性的改进[J].汽车安全与节能学报,2015,6(1):58-65.
[9] LI Z, YU Q, CHEN J, et al. The initial velocity value of coach in frontal impact research[C]. Proceedings of the FISITA 2012 World Automotive Congress, Springer, Berlin, Heidelberg,2013:91-104.
[10] TANG Y M, YAN Y P, HUANG H W. Energy absorption study on drive cab of an intercity coach in frontal impact analysis[C].2013 Fifth International Conference on Measuring Technology and Mechatronics Automation. IEEE,2013:520-523.
[11] 王含玉.大客车前碰撞中驾驶员约束系统和损伤防护技术研究[D].长沙:湖南大学,2014.
[12] 马春生,胡经耀,张金换,等.子结构方法在汽车侧面碰撞仿真中的应用[J].清华大学学报:自然科学版,2010,50(2):290-294.
[13] 陈光,张君媛,刘乐丹,等.基于子结构性能的车体前端结构抗撞性设计[J].汽车工程,2013,35(9):794-798.
[14] 董学勤,朱西产,马志雄,等.基于零部件试验的汽车侧面碰撞假人伤害的研究[J].汽车工程,2012,34(10):894-897,942.
[15] 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):1130-1137,1143.
[16] 常伟波,张维刚,崔杰.基于正面碰撞的轿车车身正向概念设计的研究[J].汽车工程,2012,34(5):447-451.
[17] 高云凯,孙芳,程金山,等.轿车前舱结构性能综合优化[J].中国机械工程,2010,21(4):394-399.
[18] 舒磊,方宗德,董军,等.汽车子结构的复合域拓扑优化[J].汽车工程,2008,30(5):444-448.
[19] 王国春,段利斌,陈自凯,等.基于渐进空间拓扑优化技术的白车身传力路径规划方法[J].中国机械工程,2015,26(20):2827-2834.
[20] 邱少波.汽车碰撞安全工程[M].北京:北京理工大学出版社,2016.
[21] 葛如海,刘星荣.汽车车身对壁正面碰撞安全性评价指标的研究[J].江苏理工大学学报:自然科学版,2001(4):29-31.

Improvement of Coach Crashworthiness Based onTopology Optimization of Substructure

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