| Ice-Induced Fatigue Analysis by Spectral Approach for Offshore Jacket Platforms with Ice-Breaking Cones |
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| 作者姓名： | 岳前进 刘圆 张日向 屈衍 王瑞学 |
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| 作者单位： | State Key Laboratory of Structural Analysis of Industrial Equipment Dalian University of Technology，State Key Laboratory of Structural Analysis of Industrial Equipment，Dalian University of Technology，School of Civil and Hydraulic Engineering，Dalian University of Technology，State Key Laboratory of Structural Analysis of Industrial Equipment，Dalian University of Technology，State Key Laboratory of Structural Analysis of Industrial Equipment，Dalian University of Technology，Dalian 116023，China，Dalian 116023，China，Dalian 116023 China，Dalian 116023，China，Dalian 116023，China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The spectral methods and ice-induced fatigue analysis are discussed based on Miner's linear cumulative fatigue hypothesis and S-N curve data.According to the long-term data of full-scale tests on the platforms in the Bohai Sea,the ice force spectrum of conical structures and the fatigue environmental model are established.Moreover,the finite element model of JZ20-2MSW platform,an example of ice-induced fatigue analysis,is built with ANSYS software.The mode analysis and dynamic analysis in frequency domain under all kinds of ice fatigue work conditions are carried on,and the fatigue life of the structure is estimated in detail.The methods in this paper can be helpful in ice-induced fatigue analysis of ice-resistant platforms.
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| 关 键 词： | 海上导管架平台 石油平台 破冰锥 冰激疲劳分析 谱方法 海冰 冰力 |
| 收稿时间： | 2006-05-15 |
| 修稿时间： | 2007-01-08 |
Ice-Induced Fatigue Analysis by Spectral Approach for Offshore Jacket Platforms with Ice-Breaking Cones |
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| YUE Qian-jin,LIU Yuan,ZHANG Ri-xiang,QU Yan,WANG Rui-xue.Ice-Induced Fatigue Analysis by Spectral Approach for Offshore Jacket Platforms with Ice-Breaking Cones[J].China Ocean Engineering,2007,21(1):1-10. |
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| Authors: | YUE Qian-jin LIU Yuan ZHANG Ri-xiang QU Yan WANG Rui-xue |
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| Abstract: | The spectral methods and ice-induced fatigue analysis are discussed based on Miner's linear cumulative fatigue hypothesis and S-N curve data.According to the long-term data of full-scale tests on the platforms in the Bohai Sea,the ice force spectrum of conical structures and the fatigue environmental model are established.Moreover,the finite element model of JZ20-2MSW platform,an example of ice-induced fatigue analysis,is built with ANSYS software.The mode analysis and dynamic analysis in frequency domain under all kinds of ice fatigue work conditions are carried on,and the fatigue life of the structure is estimated in detail.The methods in this paper can be helpful in ice-induced fatigue analysis of ice-resistant platforms. |
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| Keywords: | ice-resistant platform spectral methods ice force spectrum fatigue analysis |
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