| 渤海导管架平台的冰激振动响应分析 |
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| 引用本文： | 赵玉良,董胜,姜逢源,王智峰.渤海导管架平台的冰激振动响应分析[J].海洋湖沼通报,2019(4):22-29. |
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| 作者姓名： | 赵玉良 董胜 姜逢源 王智峰 |
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| 作者单位： | 中国海洋大学工程学院 |
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| 基金项目： | 国家重点研发计划(2016YFC0303401);国家自然科学基金项目(51779236,51409226,51509226)资助 |
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| 摘 要： | 为研究渤海海域海冰撞击导管架海洋平台的冰振响应,基于锥体冰力函数,本文建立了渤海海域的冰力作用模型。采用ANSYS有限元软件对导管架平台与海冰的相互作用进行数值模拟,开展了海冰作用下抗冰平台的静力分析及平台动力响应分析。通过与静力分析结果对比,验证了动冰力对结构响应的动力放大效应。在此基础上通过改变冰厚、冰速等海冰参数,研究了不同冰力作用周期下导管架平台的冰振响应。研究表明,海冰厚度及海冰流动速度是影响平台动力响应的主要因素,为导管架平台结构的动力优化设计提供了研究基础。
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| 关 键 词： | 导管架海洋平台 冰激振动 动力响应 海冰 |
Ice-induced Vibration Response Analysis of Jacket Platform in the Bohai Sea |
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| ZHAO Yuliang,DONG Sheng,JIANG Fengyuan,WANG Zhifeng.Ice-induced Vibration Response Analysis of Jacket Platform in the Bohai Sea[J].Transaction of Oceanology and Limnology,2019(4):22-29. |
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| Authors: | ZHAO Yuliang DONG Sheng JIANG Fengyuan WANG Zhifeng |
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| Institution: | (College of Engineering,Ocean University of China,Qingdao 266100,China) |
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| Abstract: | In order to study the ice-induced vibration response of ice breaking jacket offshore platform in the Bohai Sea, a model of ice force in Bohai Sea is developed based on the cone ice-force function proposed by Dalian University of Technology, and numerical simulation of the interaction between jacket platform and sea ice is carried out by finite element software ANSYS. The static analysis of the anti-ice platform under sea ice and the analysis of the platform dynamic response are carried out at the same time. By comparing with static analysis results, the dynamic amplification effect of dynamic ice force on structure is verified. The ice vibration response of the jacket platform under different ice periods is studied by changing the sea ice parameters such as ice thickness and ice speed. The results show that the thickness and the velocity of sea ice are the main factors affecting the dynamic response of the platform, which provides the basis for the dynamic optimization design of the jacket platform structure. |
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| Keywords: | offshore jacket platform ice-induced vibration dynamic response sea ice |
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