基于冰载荷引起的船体结构疲劳损伤分析方法  

Fatigue Damage Analysis Method of Ship Structure Based on Ice Load

作　　者：罗本永 张升明 陈忱[1] LUO Benyong;ZHANG Shengming;CHEN Chen(Marine Design and Research Institute of China,Shanghai 200011,China;Lloyd Register,Global Technical Support Office,Southampton S0171BJ,UK)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011 [2]英国劳氏船级社,英国南安普顿S0171BJ

出　　处：《船舶工程》2020年第9期19-24,69,共7页Ship Engineering

摘　　要：基于冰载荷引起的船体结构强度问题在工程实践中已受到广泛关注,而冰载荷引起的结构疲劳强度相关的研究却鲜有提及。文章针对英国劳氏船级社发布的Ship Right FDA ICE,简要介绍了这一评估方法的技术背景以及注意要点等。根据该方法给出数条油船和LNG船算例,以验证改善疲劳节点的可行性,并针对其的不足之处提出改进建议。The hull structure strength problem caused by ice load is widely concerned in engineering practice,but the research on the structural fatigue damage caused by ice load is rarely mentioned.For Ship Right FDA ICE issued by Lloyd’s Register of Shipping,the technical background and important points of the assessment method are briefly introduced.Based on the method,several examples of oil tankers and LNG tankers are given to verify the feasibility of improving fatigue strength.Some constructive comments aiming at the disadvantages of the proposed method are put forward.

关 键 词：冰载荷 疲劳强度 纵骨疲劳 疲劳损伤 

分 类 号：U661.4[交通运输工程—船舶及航道工程]