Finite Element Analysis and Shape Optimization of Automotive Crash-boz Subjected to Low Velocity Impact
Crash-box equipped at the front end of a car, is one of the most important automotive parts for crash energy absorption. In case of frontal crash accident, it is expected to be collapsed with absorbing crash energy prior to other body parts so that the damage of the main cabin frame is minimized and passengers may be saved. In the present work, energy absorption characters of automobile crash-box at lowvelocity impact are studied by using Finite Element Method and shape optimization design for thin-walled tubes has been successfully proposed through choosing proper cross section and adopting appropriate grooves. Six types of thin-walled tubes with different cross section were studied and different grooves on the tubes were adopted and compared. Results show that the energy absorption characters improved obviously for square cross section thin-walled tube with double concave and bulgy grooves.
crash boz low velocity impact finite element analysis shape optimization
Li Qing-fen Liu Yan-jie Wang Hai-dou Yan Sheng-yuan
College of Mechanical and Electrical Engineering Harbin Engineering University Harbin,China College of Mechanical and Electrical Engineering,Harbin Engineering University Heilongjiang Universi National Key Laboratory for Remanufacturing Armored Forces Engineering Institute Beijing,China
国际会议
长沙
英文
1735-1738
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）