| 顶部浮体激励下钢悬链线立管的动力响应分析 |
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| 引用本文： | 郭海燕,孟丹,徐思朋.顶部浮体激励下钢悬链线立管的动力响应分析[J].中国海洋大学学报(自然科学版),2009,39(5). |
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| 作者姓名： | 郭海燕 孟丹 徐思朋 |
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| 作者单位： | 中国海洋大学工程学院,山东,青岛,266100 |
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| 基金项目： | 国家高技术研究发展计划项目(2006AA09Z356);;国家自然科学基金重点项目(50739004)资助 |
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| 摘 要： | 考虑钢悬链线立管大变形的特性以及内流的影响,利用Kane方法和拉格朗日应变理论建立钢悬链线立管的二维动力学模型。将顶部浮体的激励简化为一个沿顺流向的周期作用力施加于立管顶部,采用平均加速度法求解立管的动力响应。探讨顶部浮体不同激励频率下立管的非线性动力响应以及内流流速的大小对管道共振响应幅值的影响。
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| 关 键 词： | 钢悬链线立管 Kane方法 动力响应 浮体激励 内流 |
Dynamic Responses of Simple Catenary Riser Subject to Top End Excitation |
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| GUO Hai-Yan,MENG Dan,XU Si-Peng.Dynamic Responses of Simple Catenary Riser Subject to Top End Excitation[J].Periodical of Ocean University of China,2009,39(5). |
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| Authors: | GUO Hai-Yan MENG Dan XU Si-Peng |
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| Institution: | College of Engineering;Ocean University of China;Qingdao 266100;China |
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| Abstract: | The simple catenary riser is often used as a flexible link between undersea bore head and subsurface offshore platform.In order to carry out the performance-based design of the marine risers,the evaluation of their dynamic responses to top end excitations is imperative.In this study,the nonlinear equations of motion are derived based on Kane's method in combination with Lagrangian-strain definition,which capable of analyzing large-amplitude vibrations of a simple catenary riser with internal fluid.Investiga... |
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| Keywords: | simple catenary riser Kane-method dynamic response vessel excitation internal fluid |
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