Vehicle front structure energy absorbing optimization in frontal impact

被引：6
作者：
College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China [1 ]
机构：
[1] College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai
来源：
Open Mech. Eng. J. | / 1卷 / 168-172期
关键词：
Energy absorbing; Front structure; Optimization; Orthogonal design;
D O I：
10.2174/1874155X01509010168
中图分类号：
学科分类号：
摘要：
Energy absorption performance is one of the most important indexes in the vehicle safety during impact. Research on the car frontal structure energy performance and structure optimization was conducted in this paper. Whole vehicle model was established by HyperMesh and simulated in LS-DYNA. Simulation results indicated that modification was need for the original structure to meet requirement. Based on simplified whole vehicle model, orthogonal design optimization was implemented, including bumper cross beam material (A), bumper cross beam thickness (B), energy absorber groove distance (C), and front longitudinal beam groove number (D), with 3 levels for each factor. The best option was B3D1A3C3 was gained by using range analysis and integrated balance method. Simulation results showed that both front and total energy absorption were improved. The optimized structure increased front energy absorption to 51.1%, which can meet the industry requirement. © Chen et al.; Licensee Bentham Open.
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页码：168 / 172
页数：4
相关论文
共 13 条
  • [1] Zhang J.H., Du H.L., Ma C.S., Automotive Design for Crash Safety, (2000)
  • [2] Zhong Z.H., Zhang W.G., Cao L.B., He W., Automotive Crash Safety Technology, (2003)
  • [3] Deng Q.B., Research on the Simulation and Reconstruction of Vehicle Collision Based on Energy Absorption Analyses, (2010)
  • [4] Lorenzo P., Comparison of the energy absorption capability of crash boxed assembled by spot-weld and continuous joining techniques, Int. J. Impact Eng, pp. 498-511, (2009)
  • [5] Emil E., Comparison of deformation properties of steel sheets for car body parts, Proc. Eng, pp. 115-122, (2012)
  • [6] Jovan O., Lightweight design and crash analysis of composite frontal impact energy absorbing structures, Composite Struct, 94, pp. 423-430, (2012)
  • [7] Zhang W.G., Liao X.T., Zhong Z.H., Multi-objective optimization for crash safety design of vehicles using stepwise regression model, Chin. J. Mech. Eng, 43, 8, pp. 142-147, (2007)
  • [8] Wang G.C., Cheng A.G., Gao H., Zhong Z.H., A Study on the effects of strain rate on the crashworthiness of vehicle, Automot. Eng, 32, 6, pp. 482-485, (2010)
  • [9] Cheng X.S., Liu W.H., Hao Y.M., Ma Z.L., Tang H.B., Optimization of a Passenger car’s bumper beam for crashworthiness, Automot. Technol, 10, pp. 5-9, (2011)
  • [10] Zhou Y.J., Lan F.C., Wei X.M., Wu C.M., A study on the matching law of high strength steel sheets for car-body front-end structures based on frontal impact requirements, Automot. Technol, 31, 10, pp. 990-994, (2009)
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