针对舭龙骨在船舶航行过程中出现裂纹的实际问题，基于规范对某实际船型舭龙骨强度进行数值计算，分析规范计算得到的砰击压力作用下舭龙骨的应力分布，进一步采用流固耦合的方法探讨舭龙骨出现裂纹的原因。此外，讨论不同规范中对于舭龙骨的规定，并考虑实船的维修可操作性与结构的安全性因素，针对该船型的舭龙骨提出改进方案，为类似问题的解决提供思路。
In order to address the practical problem of bilge keel cracking during ship navigation, this paper presents a numerical analysis of the strength of bilge keel of an actual ship based on the rules and regulations, discusses the problems in the design of bilge keel of this ship, analyzes the distribution of stress on bilge keel under the slamming pressure based on the rules and regulations, and explores the causes of bilge keel cracking using the fluid-solid coupling approach. In addition, this paper discusses the regulations of bilge keel in different rules and regulations and proposes an improvement plan for the bilge keel of this ship type considering the maintenance operability and structural safety of the actual ship, which provides ideas for the solution of similar problems.
2022,44(6): 22-28 收稿日期：2021-06-21
DOI：10.3404/j.issn.1672-7649.2022.06.005
分类号：U663
作者简介：赵跃萍(1984-)，女，硕士，讲师，研究方向为结构力学
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