| 深海钢悬链立管应力接头的多轴疲劳分析 |
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| 引用本文： | 郑文青,杨和振.深海钢悬链立管应力接头的多轴疲劳分析[J].哈尔滨工程大学学报,2011,32(11):1422-1427. |
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| 作者姓名： | 郑文青 杨和振 |
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| 作者单位： | 1. 上海交通大学,船舶海洋与建筑工程学院,海洋工程国家重点实验室,上海200240;中国船舶及海洋工程设计研究院,上海200011
2. 上海交通大学,船舶海洋与建筑工程学院,海洋工程国家重点实验室,上海200240 |
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| 基金项目： | 国家自然科学重点基金资助项目(50739004,51009093) |
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| 摘 要： | 为了探讨对深海钢悬链立管顶端应力接头更加准确而有效的疲劳分析方法,采用了多轴疲劳理论进行寿命估算.应力接头连接立管和平台长期处于海洋环境载荷及海洋腐蚀之下,非线性特征明显,疲劳问题突出.首先对钢悬链立管进行海洋环境载荷下的时域总体动力分析,然后对应力接头进行局部分析,最后利用多轴疲劳理论对应力接头进行寿命估算和初步的参...
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| 关 键 词： | 应力接头 动力分析 多轴疲劳 钢悬链立管 |
Multiaxial fatigue analysis of the stress joint for a deepwater steel catenary riser |
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| ZHENG Wenqing,YANG Hezhen.Multiaxial fatigue analysis of the stress joint for a deepwater steel catenary riser[J].Journal of Harbin Engineering University,2011,32(11):1422-1427. |
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| Authors: | ZHENG Wenqing YANG Hezhen |
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| Affiliation: | ZHENG Wenqing1,2,YANG Hezhen1(1.State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China,2.Marine Design and Research Institute of China,Shanghai 200011,China) |
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| Abstract: | The object of this paper is to present a more accurate and useful method for fatigue analysis and life prediction for a stress joint of a deepwater steel catenary riser.The stress joint was used to connect the riser and platform,and it was subjected to ocean environmental loadings and erosion;thus,the fatigue problem is critical.First,global time domain dynamic analysis of the steel catenary riser was performed,and then local analysis was performed for the stress joint.Finally,the fatigue life of the stress... |
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| Keywords: | stress joint dynamic analysis multiaxial fatigue steel catenary riser |
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