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Investigation of aluminum alloy for lightweight outer hood panel of local compact SUV using finite element modeling

机译:用有限元建模研究局部紧凑型SUV铝合金铝合金

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Traffic accidents are terrible scourge that occurs in many countries, for developing countries where transportation problems seem like a tangled yarn. Besides its function as an engine compartment cover, the hood of modern compact SUV can also help to manage the impact energy of pedestrian's head in a vehicle-pedestrian impact. This paper presents a compact SUV's outer hood design that has a potential to improve hood ability and also to absorb the impact energy of a pedestrian's head. The developed methodology for the design of a hood configuration aims to provide a compatible design and stress distribution for the left side impact position at WAD 1000 with three different thicknesses (1.25 mm, 1.30 mm and 1.50 mm) of outer hood panel of local compact SUV, taking into consideration the limited space available for deformation. Finite Element Modeling (FEM) software was used in this research to simulate the ANCAP for child pedestrian head impact testing procedures. The results show that the minimum deformation space and meet the requirement for stress (von Mises) value are required to obtain a sturdy design. Moreover, the hood thickness and materials are the main factors that influence stress and deformation value. Finally, 1.25 thickness aluminum alloy is recommended for vehicle hood component and the pedestrian safety.
机译:交通事故是发生在许多国家,发展中国家,那里的交通问题似乎是一个纠结的纱线可怕的祸害。除了其作为发动机舱盖的功能,现代紧凑型SUV的引擎盖也可以帮助管理在车辆与行人碰撞行人头部的冲击能量。本文提出了一种紧凑型SUV的外部机罩的设计,具有提高发动机罩能力的潜力,也吸纳了行人头部的冲击能量。该改进的方法用于罩式结构的目标的设计,以在WAD 1000提供用于左侧碰撞位置兼容的设计和应力分布与当地紧凑型SUV的外机罩板的三种不同厚度(1.25毫米,1.30毫米和1.50毫米)考虑到可变形的空间有限。有限元建模(FEM)软件在此研究中,模拟儿童行人头部冲击试验程序ANCAP。结果表明,最小的变形空间,并满足对应力条件(冯米塞斯)值需要获得一个坚固的设计。此外,罩厚度和材料是主要因素影响应力和变形值。最后,1.25厚度铝合金推荐用于车辆发动机罩组件和行人安全。

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