淡江大學機構典藏:Item 987654321/98530
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    題名: Design of Car Hood of Sandwich Structures for Pedestrian Safety
    作者: Teng, Tso-Liang;Liang, Cho-Chung;Shih, Chien-Jong;Nguyen, Manh-Trung
    貢獻者: 淡江大學機械與機電工程學系;修平科技大學機械系
    關鍵詞: Keywordspedestrian;hood;sandwich structures;head injury;headform;EEVC/WG17
    日期: 2013-11-01
    上傳時間: 2014-08-11 17:40:46 (UTC+8)
    出版者: Inderscience Publishers
    摘要: Vehicle safety factors should simultaneously consider occupant and pedestrian safety, given that pedestrians are the third largest category of traffic fatalities. Most pedestrian deaths occur due to traumatic brain injury, resulting from the hard impact of the human head against the vehicle's stiff hood or windshield. Therefore, how to design a pedestrian-friendly vehicle and propose a new hood structure is a matter of urgency for minimising pedestrian head injuries. In this study, three kinds of sandwich hood structures are proposed for reducing pedestrian head injuries, including carbon fibrereinforced polycarbonate, carbon fibre-reinforced foam and aluminiumreinforced polycarbonate. In assessing the friendliness of vehicle hoods, this study adopts the EEVC/WG17 regulations on headforms for hood tests. The finite element method is used to simulate the impact between the vehicle's hood and the headform impactor. The software used in simulation is LSDYNA. The results predicted by the headform-hood tests show that the hood structure with aluminium-reinforced polycarbonate material provides enough absorption capability to protect pedestrians from the impacts of accidents. It is also stiff enough to keep pedestrians' heads away from the inner parts of the engine cavity. The analysis models and sandwich materials proposed herein contribute to efforts to design vehicle hood structures and pave the way for developing pedestrian protection technologies.
    關聯: International Journal of Vehicle Design 63(2/3), pp.185-198
    DOI: 10.1504/IJVD.2013.056142
    顯示於類別:[機械與機電工程學系暨研究所] 期刊論文

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