| 半潜式平台疲劳损伤分析及延寿评估 |
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| 引用本文： | 余涛,张日向,翟钢军. 半潜式平台疲劳损伤分析及延寿评估[J]. 中国海洋平台, 2014, 0(5): 14-20 |
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| 作者姓名： | 余涛 张日向 翟钢军 |
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| 作者单位： | 大连理工大学深海工程研究中心,辽宁大连116023 |
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| 基金项目： | 国家自然科学基金创新研究群体科学基金（50921001）. |
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| 摘 要： | 采用有限元分析软件ANSYS对“南海二号”半潜式平台进行一体化建模，应用谱分析方法和全概率方法对平台结构的疲劳损伤进行分析，并计算结构的疲劳寿命；根据金属材料的完全非线性疲劳累积损伤模型，分析疲劳损伤构件承受极端荷载的能力；对平台疲劳损伤严重的应力热点区域进行检测维修，研究了节点维修后延续寿命的期望。
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| 关 键 词： | 半潜式平台 疲劳损伤 延续寿命 |
The Analysis of Fatigue of Semi-submerged Platform and Evaluation of Prolonged Life |
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| YU Tao,ZHANG Ri-xiang,ZHAI Gang-jun. The Analysis of Fatigue of Semi-submerged Platform and Evaluation of Prolonged Life[J]. China offshore Platform, 2014, 0(5): 14-20 |
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| Authors: | YU Tao ZHANG Ri-xiang ZHAI Gang-jun |
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| Affiliation: | (Deepwater Engineering Research Center of Dalian University of Technology, Liaoning Dalian 116023, China) |
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| Abstract: | Build an integrated model for the sub-merged platform named of ＂The South China sea Ⅱ ＂ by definite element analysis software of ANSYS. The fatigue damage of the platform is analyzed by application of ＂Spectrum Analysis Method＂ and ＂Full Probability A- nalysis Method＂. According to the fully nonlinear fatigue cumulative damage model of metal materials, analyze the ability of the damaged components of platform for resisting extreme load. The hot spots which were severely damaged were tested and maintained, and their ex- pectations of prolonged life have been researched. |
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| Keywords: | semi-submerged platform fatigue damage prolonged life |
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