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A Study on Light Weight Hood Design for Pedestrian Safety  

Lee, Won-Bae (Graduate school of Automotive Engineering, Catholic University of Daegu)
Kang, Sung-Jong (School of Mechanical and Automotive Engineering, Catholic University of Daegu)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.15, no.1, 2007 , pp. 106-115 More about this Journal
Abstract
In this study, first, child headform model was built up, satisfying requirement in the headform validation test. Also, for decreasing both acceleration peak and deformation, a new hood with dome shaped forming in inner panel was investigated. Next, headform impact, complying with draft of EEVC W/G 17, on the central portion of the newly proposed hood were simulated for a steel hood and three aluminum hoods with different thickness for examining the material and thickness effect on HIC value and inner panel deformation. The analysis results explained that aluminum hoods with dome shaped forming in inner panel were highly promising not only for meeting headform safety regulations but also for leading to weight savings. Finally, hood edge design technology in order to reduce pedestrian injury due to the high stiffness of beam type edge and the rigid support, was discussed. Various types of the foam filled edge were designed and their headform safety performance were evaluated. The edge structure with foam filled in upper one third of section exhibited excellent results.
Keywords
Hood; Headform; HIC; Dome shaped forming; Foam filled model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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