船舶航行安全是航海领域重点关注的问题之一，船体的总纵弯矩数值在不同情况下会发生变化，研究船体结构极限承载力是船舶安全航行的关键，为此提出总纵弯矩作用下的船体结构极限承载力分析方法。该方法利用有限元软件建立船体结构模型，计算船体结构总纵弯矩，以此为基础分别从船体梁结构挠度极限承载力和船体剖面平衡角度，计算结构极限承载力，并在有限元环境下展开多角度分析。结果表明，该方法可有效构建船体结构有限元模型，并有效分析船体结构不同总纵弯矩情况下，船体结构挠度极限承载力和中截面结构极限承载力分布情况，应用效果较为显著。
The safety of ship navigation is one of the key issues in the field of navigation. The value of the total longitudinal bending moment of the hull will change under different circumstances. The study of the ultimate bearing capacity of the hull structure in this case is the key to the safe navigation of ships. Therefore, the ultimate bearing capacity analysis method of the hull structure under the action of the total longitudinal bending moment is proposed. This method uses the finite element software to establish the hull structure model, and calculates the total longitudinal bending moment of the hull structure. Based on it, the ultimate bearing capacity of the structure is calculated from the angle of the ultimate deflection bearing capacity of the hull beam structure and the balance of the hull section, and the multi-angle analysis is carried out under the finite element environment. The experimental results show that this method can effectively build the finite element model of the hull structure, and effectively analyze the distribution of the ultimate bearing capacity of the hull structure deflection and the ultimate bearing capacity of the mid-section structure under different total longitudinal bending moments of the hull structure. The application effect is remarkable.
2023,45(7): 22-25 收稿日期：2022-09-11
DOI：10.3404/j.issn.1672-7649.2023.07.005
分类号：U661
基金项目：山西省应用基础研究计划项目（201901D211209）
作者简介：车金枝(1982-),女,硕士,讲师,主要研究方向为土木工程
