摘要
本文以极地船舶实测冰载荷为基础,对冰载荷随机特性进行研究,揭示冰载荷随机特性产生的原因,描述冰载荷幅值的概率分布情况,引入结构可靠性理论对船舶冰载荷极值分布以及冰载荷引起的疲劳损伤进行研究。研究结果可为极地船舶结构物可靠性提供指导与参考。
In this paper,the stochastic properties of ship ice loads was studied in detail on the basis of the data collected onboard KV Svalbard.Specifically,the reasons that cause the randomness of ice-induced loads were explained in detail.Probabilistic models,such as the Weibull,lognormal,exponential and three-parameter exponential were introduced in order to describe the distribution of ice load peaks.The theory of structural reliability was introduced in order to study the extreme value distribution of ice loads and to evalu-ate the fatigue damage caused by ice loads.Current study could provide valuable guidance and reference for the structural reliability of Arctic ships.
作者
何林
柴威
余象鹏
陈威
冯朔
HE Lin;CHAI Wei;YU Xiang-peng;CHEN Wei;FENG Shuo(Key Laboratory of High Performance Ship Technology(Wuhan University of Technology),Ministry of Education,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《船舶力学》
EI
CSCD
北大核心
2023年第7期1109-1117,共9页
Journal of Ship Mechanics
基金
国家自然科学基金金资助项目(52201379)
中央高校基本科研业务费专项资金资助项目(3120622898)。
关键词
船舶冰载荷
随机特性
极值预报
疲劳评估
ship ice load
randomness
extreme value prediction
fatigue damage
