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深海半潜式平台系泊系统疲劳分析

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海洋工程结构物在进行作业时长期受到环境载荷的循环作用易发生疲劳损伤,需要对其进行损伤评估防止结构失效造成重大损失.本文以南海某一半潜平台为研究对象,借助OrcaFlex软件建立平台及其系泊系统耦合动力模型,并考虑锚链的腐蚀效应,采用时域分析方法对系泊系统进行疲劳分析,得到不同海况下锚链的疲劳损伤,并探究了不同腐蚀模型对锚链疲劳损伤的影响规律,为实际海洋工程的设计提供理论参考.
Fatigue Analysis of Mooring System for Deep-Sea Semi-submersible Platform
Marine engineering structures are prone to fatigue damage due to long-term cyclic environmental loads during operation,and are required for damage assessment to prevent significant losses caused by structural failure.This article takes a semi-submersible platform in the South China Sea as the research object,uses OrcaFlex software to establish a coupled dynamic model of the platform and its mooring system,and considers the corrosion effect of the anchor chain.The time-domain analysis method is used to analyze the fatigue damage of the mooring system,and the fatigue damage of the anchor chain under different sea conditions is obtained.The influence of different corrosion models on the fatigue damage of the anchor chain is explored,providing theoretical reference for the design of practical marine engineering.

mooring systemfatigue damagetime domain analysis methodcorrosion effect

周晓刚、黄文剑、李建明

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中国人民武装警察部队海警学院,浙江 宁波 315800

系泊系统 疲劳损伤 时域分析方法 腐蚀效应

2024

广东造船
广东造船工程学会

广东造船

影响因子:0.059
ISSN:
年,卷(期):2024.43(5)