吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (06): 1441-1446.doi: 10.7964/jdxbgxb201306001

• paper • Previous Articles     Next Articles

Lightweight method of car’s front rails based on the theory of thin-walled beam crashworthiness

ZHANG Jun-yuan, CHEN Guang, WU Li-nan, LIU Ying   

  1. State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2012-11-12 Online:2013-11-01 Published:2013-11-01

RICH HTML

0   

PDF (PC)

787

Abstract:

This paper studies the lightweight method of the front rail of domestic mid-size cars. The average crushing force of the thin-walled beam composed of multiple right angles is derived based on the theory of the crushing of rectangular thin-walled beam. Meanwhile, the substructure dissipated energy and force are obtained by target cascading of the acceleration pulse in 65 km/h frontal crash. Based on the force and the lightweight target of substructures, the new cross-section of the rails is designed with the theory of crushing of multiple right angles thin-walled beam and bending of rectangular thin-walled beam. Then the wall thickness of the new rails is modified by finite element analysis. The weight of the new front rails designed by lightweight method is reduced by 20% and the frontal crashworthiness is remained reserved.

Key words: vehicle engineering, lightweight, the thin-walled beam crashworthiness, front rails

CLC Number: 

  • U461.91

[1] 张君媛,陈光,刘乐丹,等.乘用车结构正面抗撞性波形设计与目标分解[J].吉林大学学报:工学版,2012,42(4):823-827. Zhang Jun-yuan, Chen Guang, Liu Le-dan, et al. Design and target cascading of objective pulse of car frontal crashworthiness[J]. Journal of Jilin University (Engineering and Technology Edition), 2012, 42(4):823-827.



[2] Malen D E. Fundamentals of Automobile Body Structure Design[M]. Pennsylvania USA: SAE International, 2011: 224-226.



[3] Zarei H R, Kröger M. Bending behavior of empty and foam-filled beams: Structural optimization[J]. International Journal of Impact Engneering, 2008,35(6): 521-529.



[4] Park C, Kan C, Reagan S, et al. Crashworthiness and numerical analysis of composite inserts in vehicle structure[C]//SAE Paper, 2012-01-0049.



[5] Abramowicz W, Jones N. Dynamic axial crushing of square tubes[J]. International Journal of Impact Engineering, 1984,2(2):179-208.



[6] Abramowicz W, Jones N. Dynamic progressive buckling of circular and square tubes[J]. International Journal of Impact Engineering, 1986, 4(4):243-270.



[7] Kecman D. Bending collapse of rectangular and square section tubes[J]. International Journal of Mechanical Sciences, 1983, 25(9-10): 623-636.



[8] 唐洪斌. 乘用车正面抗撞性设计方法研究[D].长春:吉林大学汽车工程学院,2008. Tang Hong-bin. Study on design procedures of frontal crash worthiness for passenger car[D]. Chanchun: The College of Automotive Engineering,Jilin University, 2008.
[1] CHANG Cheng,SONG Chuan-xue,ZHANG Ya-ge,SHAO Yu-long,ZHOU Fang. Minimizing inverter capacity of doubly-fed machine driving electric vehicles [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1629-1635.
[2] XI Li-he,ZHANG Xin,SUN Chuan-yang,WANG Ze-xing,JIANG Tao. Adaptive energy management strategy for extended range electric vehicle [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1636-1644.
[3] HE Ren,YANG Liu,HU Dong-hai. Design and analysis of refrigeration system supplied by solar auxiliary power of refrigerator car [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1645-1652.
[4] NA Jing-xin,MU Wen-long,FAN Yi-sa,TAN Wei,YANG Jia-zhou. Effect of hygrothermal aging on steel-aluminum adhesive joints for automotive applications [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1653-1660.
[5] LIU Yu-mei,LIU Li,CAO Xiao-ning,XIONG Ming-ye,ZHUANG Jiao-jiao. Construction on collision avoidance model of bogie dynamic simulation test bench [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1661-1668.
[6] ZHAO Wei-qiang, GAO Ke, WANG Wen-bin. Prevention of instability control of commercial vehicle based on electric-hydraulic coupling steering system [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1305-1312.
[7] SONG Da-feng, WU Xi-tao, ZENG Xiao-hua, YANG Nan-nan, LI Wen-yuan. Life cycle cost analysis of mild hybrid heavy truck based on theoretical fuel consumption model [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1313-1323.
[8] ZHU Jian-feng, ZHANG Jun-yuan, CHEN Xiao-kai, HONG Guang-hui, SONG Zheng-chao, CAO Jie. Design modification for automotive body structure based on seat pull safety performance [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1324-1330.
[9] NA Jing-xin, PU Lei-xin, FAN Yi-sa, SHEN Chuan-liang. Effect of temperature and humidity on the failure strength of Sikaflex-265 aluminum adhesive joints [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1331-1338.
[10] WANG Yan, GAO Qing, WANG Guo-hua, ZHANG Tian-shi, YUAN Meng. Simulation of mixed inner air-flow integrated thermal management with temperature uniformity of Li-ion battery [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1339-1348.
[11] JIN Li-sheng, XIE Xian-yi, GAO Lin-lin, GUO Bai-cang. Distributed electric vehicle stability control based on quadratic programming [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1349-1359.
[12] KUI Hai-lin, BAO Cui-zhu, LI Hong-xue, LI Ming-da. Idling time prediction method based on least square support vector machine [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1360-1365.
[13] WANG De-jun, WEI Wei-li, BAO Ya-xin. Actuator fault diagnosis of ESC system considering crosswind interference [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1548-1555.
[14] HU Man-jiang, LUO Yu-gong, CHEN Long, LI Ke-qiang. Vehicle mass estimation based on longitudinal frequency response characteristics [J]. 吉林大学学报(工学版), 2018, 48(4): 977-983.
[15] LIU Guo-zheng, SHI Wen-ku, Chen Zhi-yong. Finite element analysis of transmission error for hypoid gears considering installation error [J]. 吉林大学学报(工学版), 2018, 48(4): 984-989.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd