| 海洋细长结构参数激励不稳定区的确定方法 |
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| 引用本文： | 徐万海,吴应湘,钟兴福,何杨,刘培林,冯现洪. 海洋细长结构参数激励不稳定区的确定方法[J]. 振动与冲击, 2011, 30(9): 79-83. DOI: |
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| 作者姓名： | 徐万海 吴应湘 钟兴福 何杨 刘培林 冯现洪 |
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| 作者单位： | 1. 天津大学建筑工程学院, 天津, 300072; 2. 中国科学院力学研究所, 北京, 100190; 3. 海洋工程股份有限公司, 天津, 300451 |
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| 基金项目： | 国家重大专项‘荔湾3-1气田工程设计、建造、安装技术’(2008ZX05056-03); 天津大学自主创新基金; 教育部博士点新教师基金(20100032120047) |
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| 摘 要： | 分别采用变形参数法，改进的变形参数法及傅立叶分析法确定海洋细长结构参数振动Hill方程的不稳定区，比较三种方法的优缺点，并给出了前三阶不稳定区图像，为张力腿、立管等海洋细长柔性结构的设计提供参考。
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| 关 键 词： | 参数激励 Hill方程 变形参数法 改进的变形参数法 |
Methods for parametric excitation instability analysis of slender flexible cylindrical structures in offshore engineering |
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| XU Wan-hai,WU Ying-xiang,ZHONG Xing-fu,HE Yang,LIU Pei-lin,FENG Xian-hong. Methods for parametric excitation instability analysis of slender flexible cylindrical structures in offshore engineering[J]. Journal of Vibration and Shock, 2011, 30(9): 79-83. DOI: |
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| Authors: | XU Wan-hai WU Ying-xiang ZHONG Xing-fu HE Yang LIU Pei-lin FENG Xian-hong |
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| Affiliation: | 1. School of Civil Engineering, Tianjin University, Tianjin, 300072; 2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190; 3. OFFSHORE OIL ENGINEERING CO., LTD ENGINEERING COMPANY, Tianjin,300451 |
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| Abstract: | The parametric excitation instability regions of slender flexible cylindrical structures in offshore engineering were analysed by using L-P(Lyapunov-Poincare),modified L-P and harmonic balance method respectively.The results of the three different methods were compared and the chart of first three instability regions was drawn.The results give reference to build up design guidance for Tension leg platform(TLP) tethers and risers. |
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| Keywords: | parametric excitation Hill equation L-P method modified L-P method |
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