中国舰船研究2024，Vol.19Issue(2)：113-119,7.DOI:10.19693/j.issn.1673-3185.03185
船舶骑冰事故下船体梁结构强度特征分析
Analysis of structural strength characteristics of hull girder under ice riding accident
陈富康 1杨骏 2袁昱超 1薛鸿祥 1唐文勇1
作者信息
- 1. 上海交通大学 海洋工程国家重点实验室,上海 200240||上海交通大学 船舶海洋与建筑工程学院,上海 200240
- 2. 中国船舶科学研究中心,江苏 无锡 214082
- 折叠
摘要
Abstract
[Objectives]In order to identify the change in structural strength after an interaction between hull girders and ice,this paper puts forward an analytical technique which can determine the structural strength of hull girders after an ice riding accident and disclose the related structural strength features.[Methods]First,the hull girder structural strength analysis model and associated load analysis model are constructed in accor-dance with the characteristics of each section.To account for the buoyancy variations brought on by ice riding,the buoyancy distribution of the ice riding conditions is retrieved from the load analysis model and inserted into the structural strength analysis model.Gravity and the reaction force of the ice are then used to determine the structural strength.Finally,an analysis is carried out on the impact of lifting position and height on the buoyancy,shear force,bending moment and local stress distribution of the hull girders.[Results]The re-sults show that the sites of buoyancy and shear force of the hull girders are situated in the stern part and middle part,and unaffected by changes in the bow lifting height.The shell is closer to the vertical when the lifting po-sition is at the bow of the bulbous bow,making it harder to resist the ice lever support reaction and resulting in the high stress areas becoming comparably larger and more dangerous.[Conclusions]The proposed tech-nique has high computation efficiency and can be used to estimate how hull girders will respond to a signi-ficant bow lift and make preliminary judgments on hull girder construction strength under risky ice riding con-ditions.关键词
船冰碰撞/极端载荷/船体梁/结构强度/有限元分析Key words
ship ice collision/extreme load/hull girder/structural strength/finite element analysis分类
交通工程引用本文复制引用
陈富康,杨骏,袁昱超,薛鸿祥,唐文勇..船舶骑冰事故下船体梁结构强度特征分析[J].中国舰船研究,2024,19(2):113-119,7.
