| 铝合金舟体承载力的数值分析 |
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| 引用本文： | 佐晓波,蒋志刚,胡平.铝合金舟体承载力的数值分析[J].兵工学报,2010,31(11):1461-1467. |
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| 作者姓名： | 佐晓波 蒋志刚 胡平 |
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| 作者单位： | 国防科学技术大学,湖南,长沙,410072;国防科学技术大学,湖南,长沙,410072;国防科学技术大学,湖南,长沙,410072 |
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| 摘 要： | 为克服钢结构空心舟体的缺点,提出一种填充柔性聚氨酯闭孔泡沫铝合金舟体结构。运用有限元软件ANSYS,研究了中心轮式荷载作用下空心和填充聚氨酯泡沫铝合金舟体的承载力,分析了舷板厚度、隔板厚度和泡沫密度对承载力的影响。结果表明:铝合金舟体具有较大的屈曲后承载能力,极限承载力由材料破坏控制;隔板和舷板厚度大于某临界值时,舟体承载力由甲板控制,继续增大隔板和舷板厚度不能有效提高舟体承载力;填充泡沫应采用低密度泡沫,并可忽略其对舟体承载力的影响。
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| 关 键 词： | 固体力学 舟桥结构 铝合金 泡沫 有限元 承载力 |
Numerical Study on Load-carrying Capacity of Aluminum Alloy Pontoon Hull |
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| ZUO Xiao-bo,JIANG Zhi-gang,HU Ping.Numerical Study on Load-carrying Capacity of Aluminum Alloy Pontoon Hull[J].Acta Armamentarii,2010,31(11):1461-1467. |
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| Authors: | ZUO Xiao-bo JIANG Zhi-gang HU Ping |
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| Affiliation: | (National University of Defense Technology, Changsha 410072, Hunan, China) |
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| Abstract: | An aluminum alloy pontoon hull structure filled with flexible polyurethane foam was designed to overcome the disadvantages of steel hollow pontoon hull. Load-carrying capacity of hollow and polyurethane foam-filled hulls under centered wheel load was analyzed with FEM program ANSYS. The influence of the web and diaphragm thicknesses and the foam density on the load-carrying capacity was investigated. The results show that the aluminum alloy pontoon hull has a considerable post-buckling load-carrying capacit... |
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| Keywords: | solid mechanics pontoon structure aluminum alloy foam finite element load-carrying capacity |
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