Title :
Optimization Design of Frontal Bumper System for Both Pedestrian Lower Leg Protection and Low Speed Impact Requirement
Author :
Wenhao Mu ; Jikuang Yang
Author_Institution :
State Key Lab. of Adv. Design & Manuf. for Vehicle Body, Hunan Univ., Changsha, China
Abstract :
Pedestrian lower leg protection and low speed impact have different requirements on the frontal bumper system. Some even be contradictory. Therefore, the frontal bumper system needs to be analyzed and designed for both pedestrian protection and low speed impact requirement. In this paper, FE models were developed based on GTR and CFVSS215. The Orthogonal Arrays design of experiments was used to simulate the influence of the bumper parameter on the pedestrian lower leg impact and the low speed impact respectively. Finally, the multi-objective optimization of the structure parameters was conducted based on the NSGA-II (Non-dominated Sorting Algorithm), the results of simulation showed that the performance of the lower leg protection and low speed impact could be improved significantly meanwhile the CFVSS215 legislation and GTR requirements were satisfied.
Keywords :
automotive components; design engineering; design of experiments; finite element analysis; genetic algorithms; impact (mechanical); road safety; vehicle dynamics; CFVSS215; FE models; GTR; NSGA-II; car frontal bumper system; low speed impact requirement; multiobjective optimization; nondominated sorting algorithm; optimization design; orthogonal arrays design of experiments; pedestrian lower leg protection; Automation; Mechatronics; frontal bumper system; low speed impact; lower leg protection; multi-objective optimization;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2013 Fifth International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-5652-7
DOI :
10.1109/ICMTMA.2013.190
