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Analysis and application of thin-walled rail with variable section for crashworthiness(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年01期
Page:
88-94
Research Field:
Publishing date:
2010-02-20

Info

Title:
Analysis and application of thin-walled rail with variable section for crashworthiness
Author(s):
WU He-quan1;  YANG Jia-xing2;  XIN Yong3
1. School of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China; 2. Department of Mechanical Engineering, Jiangxi Bluesky University, Nanchang 330098, Jiangxi, China; 3. School of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China
Keywords:
automobile engineering;  optimal design;  thin-walled rail with variable section;  crashworthiness;  energy absorption
PACS:
U461
DOI:
-
Abstract:
An effective structure of thin-walled rail with variable section was proposed by comparing a variety of thin-walled rails with different section features. Several design parameters of the structure were used to optimize the rail's structure. Optimal design method was presented and utilized to obtain optimal crashworthiness design of the thin-walled rail with variable section. The quadratic models for energy absorption and maximum impact force were created using response surface methodology exploiting finite element analysis results. The optimal parameter values and the Pareto optimal solution were found with the software of Matlab. Then the optimal results were verified through the finite element analysis of thin-walled rail. The optimal thin-walled rail with variable section was used in an off-road vehicle's 40% offset-barrier impact model and the passive safety of the vehicle was improved a lot. 3 tabs, 12 figs, 12 refs.

References:

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Memo

Memo:
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Last Update: 2010-02-20