基于等效静态载荷法的汽车前端结构抗撞性尺寸和形貌优化

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摘要为了减少在低速正碰下汽车的维修成本以及实现汽车前端结构的轻量化，采用等效静态载荷方法对汽车前端结构的尺寸和形状进行了抗撞性优化设计，以整个结构质量最小为优化的目标函数，以前部结构主要部件的厚度尺寸以及节点坐标形貌为设计变量，以侵入量以及加强筋的冲压工艺要求为约束进行了碰撞优化设计。等效静态载荷方法将非线性瞬态碰撞优化问题转化为多工况线性静态优化问题，数值算例证明等效静态载荷法可高效地求解碰撞优化问题，并得到高精度的最优解。

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	陆善彬1
	蒋伟波2
	左文杰1
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关键词 ：汽车前端结构, 碰撞优化, 尺寸与形貌优化, 等效静态载荷法

Abstract：Equivalent static loads method (ESLM) was introduced to study size and morphology crashworthiness optimization for automobile frontal structures to reduce maintenance cost and realize lightweight design of automotive frontal structures under lower speed frontal impacts. Taking minimizing the mass of automotive frontal structures as an objective function, thickness sizes of automotive frontal structures and morphology node coordinates as design variables, and invading quantity and process requirements of stiffeners as constrains, the crashworthiness optimization design was conducted. ESLM was used to convert this nonlinear and transient crashworthiness optimization problem into a multi-mode linear static optimization one. Numerical examples showed that ESLM can effectively be used to solve crashworthiness optimization problems and obtain their optimal solutions with a higher accuracy.

Key words： automotive frontal structures crashworthiness optimization size and morphology optimization equivalent static loads method

收稿日期: 2016-06-14 出版日期: 2018-03-28

引用本文:

陆善彬1,蒋伟波2，左文杰1,3. 基于等效静态载荷法的汽车前端结构抗撞性尺寸和形貌优化[J]. 振动与冲击, 2018, 37(7): 56-61.
LU Shanbing 1, JIANG Weibo2, ZUO Wenjie1,3. Size and morphology crashworthiness optimization for automotive frontal structures using equivalent static loads method. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(7): 56-61.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I7/56

[1] 李亦文, 徐涛, 徐天爽, 等. 车身低速碰撞吸能结构的优化设计[J]. 北京理工大学学报, 2010, 30(10): 1175-9.
LI Yi-wen, XU Tao, XU Tian-shuang, et al. Optimal Design of Energy-Absorbing Structure of Autobody Under Low-Speed Crash[J]. Transactions of Beijing Institute of Technology, 2010, 30(10): 1175-1179.
[2] 谭丽辉,徐涛, 张炜,等. 带有圆弧形凸槽金属薄壁圆管抗撞性优化设计[J].振动与冲击,2013,32(21):80-84.
TAN Li-hui, XU Tao, ZHANG Wei, et al. Crashworthiness optimization design for a metal thin-walled tube with convex grooves[J]. Journal of Vibration and Shock, 2013,32(21):80-84.
[3] 曹立波,陈杰,欧阳志高,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.
CAO Li-bo, CHEN Jie, OU-Zhigao,et al. Lightweight Design and Optimization of Bumper Beam Based on Automotive Crash Safety[J]. China Mechanical Engineering, 2012,23(23)2888-2893.
[4] 伊建军, 李云鹏, 陈飙松, 等. 结构耐撞性优化中径向基函数散布常数选取方法[J]. 机械工程学报, 2014, 50(17): 171-178.
YI Jian-jun, LI Yun-peng, Chen Biao-song, et al. Selection Method of Shaping Parameter of the Radial Basis Function in Structure Crashworthiness Optimization[J]. Journal of Mechanical Engineering,2014, 50(17): 171-178.
[5] 孙光永, 李光耀, 钟志华, 等. 基于序列响应面法的汽车结构耐撞性多目标粒子群优化设计[J]. 机械工程学报, 2009, 45(02): 224-230.
SUN Guang-yong, LI Guang-yao, ZHONG Zhi-hua, et al. Optimization Design of Multi-objective Particle Swarm in Crashworthiness Based on Sequnential Response Surface Method[J]. Journal of Mechanical Engineering, 2009, 45(02): 224-230.
[6] PARK K J, LEE J N, PARK G J. Structural shape optimization using equivalent static loads transformed from dynamic loads[J]. International Journal for Numerical Methods in Engineering, 2005, 63(4): 589-602.
[7] 陈涛, 陈自凯, 段利斌, 等. 针对动态非线性优化问题ESLM梯度优化方法[J]. 机械工程学报, 2015, 51(8): 116-124
CHEN Tao, CHENG Zi-kai, DUAN Li-bin, et al. Gradient-based Equivalent Static Loads Method for Structure Nonlinear Dynamic Optimization Problem[J]. Journal of Mechanical Engineering, 2015, 51(8): 116-124。
[8] 贺新峰, 于德介. 基于ESLs结构优化法的搅拌车副车架疲劳设计[J]. 振动与冲击, 2013, 32(14): 64-69.
HE Xin-feng, YU De-jie. Fatigue Design of Auxiliary Frame of an Agitator Truck Based on ESLs Structural optimization Method[J]. Journal of Vibration and Shock, 2013, 32(14): 64-69
[9] 芮强, 王红岩, 田洪刚. 基于等效静态载荷法的结构动态优化 [J]. 汽车工程, 2014, 36(1): 61-65.
RUI Qiang, WANG Hong-yan, TIAN Hong-gang. Structural Dynamic Optimization Based on Equivalent Static Load Method[J] . Automotive Engineering, 2014, 36(1): 61-65.
[10] PARK G J, KANG B S, CHOI K K. Validation of a structural optimization algorithm transforming dynamic loads into equivalent static loads[J]. Journal of Optimization Theory and Applications 2003, 118(1): 191-200.
[11] CHEN Wei, ZUO Wenjie. Component sensitivity analysis of conceptual vehicle body for lightweight design under static and dynamic stiffness demands[J]. International Journal of Vehicle Design, 2014, 66(2): 107-123.
[12] ZUO Wenjie. Bi-level optimization for the cross-sectional shape of a thin-walled car body frame with static stiffness and dynamic frequency stiffness constraints[J]. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2015, 229(8): 1046-1059.
[13] 陈现岭，岳鹏，张凯.基于RCAR试验的汽车低速碰撞性能设计[J]. 汽车工程, 2009, 31(2):1165-1168.
Cheng xian-ling，Yue-Peng, Zhang-Kai. Vehicle Low Speed Crashworthiness Design Based on RCAR Tests. [J] . Automotive Engineering, 2009, 31(2):1165-116.