上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (7): 1057-1066.doi: 10.16183/j.cnki.jsjtu.2023.006
陈虹廷1,2, 赵延杰3,4, 周红雨1,2, 王德禹1,2()
收稿日期:
2023-01-04
修回日期:
2023-03-23
接受日期:
2023-06-01
出版日期:
2024-07-28
发布日期:
2024-07-26
通讯作者:
王德禹,教授,博士生导师,电话(Tel.):021-62933131;E-mail:dywang@sjtu.edu.cn.
作者简介:
陈虹廷(1999-),硕士生,从事船舶碰撞结构响应研究.
基金资助:
CHEN Hongting1,2, ZHAO Yanjie3,4, ZHOU Hongyu1,2, WANG Deyu1,2()
Received:
2023-01-04
Revised:
2023-03-23
Accepted:
2023-06-01
Online:
2024-07-28
Published:
2024-07-26
摘要:
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.
中图分类号:
陈虹廷, 赵延杰, 周红雨, 王德禹. 楔形物作用下加筋板结构的耐撞性[J]. 上海交通大学学报, 2024, 58(7): 1057-1066.
CHEN Hongting, ZHAO Yanjie, ZHOU Hongyu, WANG Deyu. Crashworthiness of.pngfened Plate Under Wedge Impact[J]. Journal of Shanghai Jiao Tong University, 2024, 58(7): 1057-1066.
表1
有限元模拟工况设计
工况 | 模型尺寸 | 撞击 位置 | |||
---|---|---|---|---|---|
2l×2m/ (mm×mm) | 2a/mm | 2ls×hs/ (mm×mm) | ts/mm | ||
A1 | 600×400 | 80 | — | — | 1 |
A2 | 600×400 | 160 | — | — | 1 |
A3 | 600×400 | 240 | — | — | 1 |
AD2 | 600×400 | 160 | — | — | 2 |
B1 | 600×400 | 80 | 600×60 | 3 | 3 |
B2 | 600×400 | 160 | 600×60 | 3 | 3 |
B3 | 600×400 | 240 | 600×60 | 3 | 3 |
BD2 | 600×400 | 160 | 600×60 | 3 | 4 |
C1 | 600×400 | 160 | 600×40 | 3 | 3 |
C2 | 600×400 | 160 | 600×80 | 3 | 3 |
D1 | 600×400 | 160 | 600×60 | 2 | 3 |
D2 | 600×400 | 160 | 600×60 | 4 | 3 |
表2
有限元模拟与理论计算结果
模型 编号 | 结构失效时数据 | 解析计算 变形抗力/kN | 误差/% | |
---|---|---|---|---|
加载位移/mm | 抵抗力/kN | |||
A1 | 53.5 | 151.4 | 187.5 | 23.8 |
A2 | 66.1 | 234.8 | 274.6 | 17.0 |
A3 | 69.3 | 304.2 | 340.1 | 11.8 |
AD2 | 56.4 | 211.8 | 233.1 | 10.1 |
B1 | 61.9 | 227.1 | 275.3 | 21.2 |
B2 | 67.5 | 303.2 | 351.5 | 15.9 |
B3 | 73.6 | 403.5 | 449.9 | 11.5 |
BD2 | 58.8 | 276.8 | 317.8 | 14.8 |
C1 | 71.9 | 299.0 | 340.7 | 13.9 |
C2 | 67.0 | 326.1 | 386.2 | 18.4 |
D1 | 66.5 | 276.1 | 318.7 | 15.4 |
D2 | 69.8 | 359.9 | 380.8 | 5.8 |
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