双向弯矩作用下的集装箱船船体梁极限强度研究

doi:10.19423/j.cnki.31-1561/u.2025.018

船舶 ›› 2025, Vol. 36 ›› Issue (06): 63-71.DOI: 10.19423/j.cnki.31-1561/u.2025.018

双向弯矩作用下的集装箱船船体梁极限强度研究

赵新新¹, 顾宇杰², 曹晶³, 唐琪¹, 吴剑国^1,*

1.浙江工业大学土木工程学院杭州 310023;
2.中国船舶科学研究中心无锡 214082;
3.中国船级社上海规范研究所上海 200135

收稿日期:2025-01-22 修回日期:2025-03-24 出版日期:2025-12-25 发布日期:2026-01-05
通讯作者: 吴剑国（1963-）,男,博士,教授。研究方向：船舶结构分析与研究。
作者简介:赵新新（1999-）,女,硕士研究生。研究方向：结构工程。顾宇杰（1997-）,男,硕士,工程师。研究方向：船舶与海洋工程。曹晶（1985-）,男,硕士,高级工程师。研究方向：船舶规范与结构强度研究。唐琪（2001-）,女,硕士研究生。研究方向：结构工程。
基金资助:
国家重点研发计划资助（2022YFB3306200）

Ultimate Strength of Container Ship Hull Girder Under Biaxial Bending Moment

ZHAO Xinxin¹, GU Yujie², CAO Jing³, TANG Qi¹, WU Jianguo^1,*

1. College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310023, China;
2. China Ship Scientific Research Center, Wuxi 214082, China;
3. Shanghai Rules and Research Institute, China Classification Society, Shanghai 200135, China

Received:2025-01-22 Revised:2025-03-24 Online:2025-12-25 Published:2026-01-05

摘要/Abstract

摘要： 为了研究集装箱船在垂向和横向弯矩共同作用下的极限强度,该文采用单跨有限元模型对3艘不同规格的集装箱船进行极限强度计算,探讨加载顺序和路径对计算结果的影响,重新回归适用于超大型集装箱船双向弯矩作用下船体梁极限强度的失效方程;基于有限元软件,获得无初始应力与含有初始应力作用下扶强材单元的应力-应变曲线的特征,并在此基础上改进了现有的扶强材单元载荷-端缩曲线,提出双向弯矩作用下船体梁极限强度的简化增量迭代方法。非线性有限元与该文方法的结果对比表明,文中所述方法具有较高的计算精度,且操作简便、易于编程,研究成果可用于双向弯矩作用下集装箱船船体梁极限强度的计算和分析。

关键词: 双向弯矩, 船体梁极限强度, 非线性有限元, 简化增量迭代法

Abstract: This study investigates the ultimate strength of container ships under the combined action of vertical and horizontal bending moments. The ultimate strength of three container ships with different specifications is calculated using single-span finite element models, and the influence of loading sequence and path on the results is discussed. A revised failure envelope equation for the ultimate strength of ultra-large container ships under biaxial bending moments is proposed. Using finite element software, the stress-strain characteristics of stiffened panels are obtained, both with and without initial stresses. Based on this, the existing load-end shortening curve for stiffened panels is improved. A simplified incremental iterative method for calculating the hull girder's ultimate strength under biaxial bending moments is then proposed. A comparison between the results from the nonlinear finite element method and those from the proposed method demonstrates that the latter achieves high computational accuracy, along with simplicity of operation and ease of programming. The findings of this research can be applied to the calculation and analysis of the ultimate strength of container ship hull girders under biaxial bending moments.

Key words: biaxial bending moment, hull beam ultimate strength, nonlinear finite element, simplified incremental iterative method

中图分类号:

U661.43

赵新新, 顾宇杰, 曹晶, 唐琪, 吴剑国. 双向弯矩作用下的集装箱船船体梁极限强度研究[J]. 船舶, 2025, 36(06): 63-71.

ZHAO Xinxin, GU Yujie, CAO Jing, TANG Qi, WU Jianguo. Ultimate Strength of Container Ship Hull Girder Under Biaxial Bending Moment[J]. Ship & Boat, 2025, 36(06): 63-71.

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双向弯矩作用下的集装箱船船体梁极限强度研究

Ultimate Strength of Container Ship Hull Girder Under Biaxial Bending Moment

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