楔形物作用下加筋板结构的耐撞性
Crashworthiness of Stiffened Plate Under Wedge Impact
查看参考文献15篇
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文摘
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为了预报楔形物偏心垂向准静态压载作用下船舶加筋板结构的抵抗能力,提出了新的简化解析方法,将矩形板的塑性变形区域划分为非对称的8个板块,将骨材划分为非对称的2个部分,矩形板、骨材各部分均采用直线的变形模式,从船舶碰撞内部动力学的角度,基于刚塑性理论,考虑膜拉伸作用和弯曲作用,推导了矩形板、骨材在楔形物偏心垂向作用下发生变形损伤的抵抗力与横向变形之间的简化解析计算方法.利用非线性有限元软件Abaqus的仿真计算结果对该简化解析方法进行验证.结果表明,该简化解析方法具有较高的计算精度,从而可用于船体结构设计阶段快速预报船舶舷侧结构的耐撞性能. |
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其他语种文摘
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In order to predict the crashworthiness of stiffened plate structures of ships under eccentric vertical quasi-static ballast of wedge,a new simplified analytical method is proposed in this paper.The plastic deformation area of the rectangular plate is divided into eight asymmetrical plates and the aggregate is divided into two asymmetrical parts.An linear mode is adopted in the deformation of rectangular plate and aggregate.From the perspective of the internal dynamics of ship collision,and based on the rigid-plastic theory,a simplified analytical method is deduced between the deformation damage resistance and lateral deformation of rectangular plate and aggregate under the eccentric vertical action of wedge impact,considering tensile and bending effects of the membrane.The proposed method is verified by the simulation results of nonlinear finite element software Abaqus.The results show that the proposed method has a high prediction accuracy,and can be used in the hull structure design stage to quickly predict the crashworthiness of the ship side structure. |
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来源
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上海交通大学学报
,2024,58(7):1057-1066 【核心库】
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DOI
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10.16183/j.cnki.jsjtu.2023.006
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关键词
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结构耐撞性
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楔形物
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加筋板
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简化解析方法
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地址
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1.
上海交通大学, 海洋工程国家重点实验室, 上海, 200240
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上海交通大学海洋装备研究院, 上海, 200240
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中国船舶科学研究中心, 江苏, 无锡, 214082
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深海技术科学太湖实验室, 江苏, 无锡, 214082
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-2467 |
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学科
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水路运输 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:7778636
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