| 考虑平台作用的顶张式立管动力分析 |
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| 引用本文： | 李艳丽,黄维平,常爽,柳振海. 考虑平台作用的顶张式立管动力分析[J]. 上海船舶运输科学研究所学报, 2021, 44(1): 18-24. DOI: 10.3969/j.issn.1674-5949.2021.01.004 |
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| 作者姓名： | 李艳丽 黄维平 常爽 柳振海 |
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| 作者单位： | 上海船舶运输科学研究所航运技术交通行业重点实验室,上海200135;上海船舶运输科学研究所航运技术与安全国家重点实验室,上海200135;中国海洋大学工程学院,山东青岛266100;中国海洋大学工程学院,山东青岛266100;浙江省电力设计院,杭州310012 |
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| 基金项目： | 国家自然科学基金(51179179;51239008)。 |
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| 摘 要： | 上层浮式平台的运动幅度比固定式平台大,对立管的影响更明显.为了解平台对顶张式立管动力的影响,提出一种动力分析方法.在一定的条件下建立立管的数学模型,采用软件Tube2D对平台和立管进行动力响应和弯曲应力分析,得到考虑平台作用的立管扶正器布置间距参数的敏感性和立管弯曲应力的变化.结果表明:对于考虑平台作用的立管模型而言,...
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| 关 键 词： | 顶张式立管 双套管 管间间隙 弯曲应力 |
Dynamic Analysis of Top-Tensioned Riser on Platform |
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| LI Yanli,HUANG Weiping,CHANG Shuang,LIU Zhenhai. Dynamic Analysis of Top-Tensioned Riser on Platform[J]. Journal of Shanghai Scientific Research Institute of Shipping, 2021, 44(1): 18-24. DOI: 10.3969/j.issn.1674-5949.2021.01.004 |
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| Authors: | LI Yanli HUANG Weiping CHANG Shuang LIU Zhenhai |
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| Affiliation: | (Key Laboratory of Marine Technology Ministry of Communications,Shanghai Ship and Shipping Research Institute,Shanghai 200135,China;State Key Laboratory of Navigation and Safety Technology,Shanghai Ship and Shipping Research Institute,Shanghai 200135,China;School of Engineering,Ocean University of China,Qingdao 266100,China;Zhejiang Electric Power Design Institute,Hangzhou 310012,China) |
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| Abstract: | The motion amplitude of a semi-submersible floating platform is large and has noticeable effects on the riser on the platform.The modeling and the dynamic analysis of the top-tensioned riser are studied.The dynamic response of the riser to the motion of the platform and the bending stress in the riser are researched.The relation between bending stress in the riser and centralizer spacing is studied.The sensitivity of the stress to centralizer spacing is analyzed.The research shows that the spaces between centralizers should be smaller at upper part of the riser to prevent the inner casing from striking the oil pipe because of platform motion.The model-calculated bending stress in individual pipe is different from that obtained by distributing the force on basis of bending stiffness of pipes.The latter is incorrect and should not be used. |
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| Keywords: | top-tensioned riser double casing gap between tubes bending stress |
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