Nonlinear riser-seabed interaction response among touchdown zone of a steel catenary riser in consideration of vortex-induced vibration
Nonlinear riser-seabed interaction response among touchdown zone of a steel catenary riser in consideration of vortex-induced vibration
复制标题
考虑涡激振动的钢悬链线立管接地区非线性立管-海底相互作用响应
DOI：
10.1016/j.oceaneng.2021.108891
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发表时间：
2021-05
影响因子：
5
通讯作者：
Tang Wenyong
中科院分区：
文献类型：
--
作者：
Yuan Yuchao;Zheng Mengtian;Xue Hongxiang;Tang Wenyong
钢悬链线立管（SCR）是恶劣海洋环境下深水油气开发的首选方案。考虑垂度弯曲涡激振动的立管-海床触地区相互作用是目前海洋工程领域的一个研究前沿。本文将Randolph-Quiggin模型集成到已发表的全球数值立管模型中，研究了SCR涡激振动下TDZ之间的非线性RSI响应。所采用的数值模型验证了一些发表的实验测量涡激振动和RSI分别。模拟了平台顶部垂荡运动和涡激振动的三种组合工况，分析了TDZ中槽沟的发展以及SCR的响应特性。涡激振动使沟槽的发展更加平滑，沟槽长度和深度都变小。在剧烈升沉激励下，涡激振动对RSI的影响较为显著，P-z曲线呈现出较明显的相互作用模式转变。涡激振动显著增大了结构的最大弯矩，使结构的垂度弯曲由高阶模态主导，这对结构的安全性都是不利的。在全尺寸SCR设计中，需要考虑RSI和VIV对立管动力响应的耦合效应。
Steel catenary riser (SCR) is a preferred solution for deepwater oil and gas exploitation under harsh marine environment. Its riser-seabed interaction (RSI) among touchdown zone (TDZ) in consideration of the vortex-induced vibration (VIV) of sag bend is at present a research frontier in ocean engineering. This paper integrates Randolph-Quiggin model into a published global numerical riser model, to investigate the nonlinear RSI response among TDZ of an SCR with VIV. The adopted numerical model is validated against some published experimental measurements for VIV and RSI respectively. Three combined cases with top-end platform heave motion and VIV are simulated, and the trench development as well as the SCR's response characteristics among TDZ is analyzed. VIV makes the trench develop more smoothly, and the trench length as well as depth turns smaller. The VIV effect on RSI is relatively significant with violent heave excitation, under which theP-zcurves present clearer interaction mode transitions. VIV enlarges the maximum bending moment visibly, and makes the sag bend of SCR dominated by higher-order modes, which are both detrimental to the structural safety. The coupling effect between RSI and VIV on the riser's dynamic response needs to be considered for the design of full-scale SCRs.
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DOI：
10.1115/omae2004-51563
发表时间：
2004
期刊：
--
影响因子：
--
作者：
G. Moe;T. Teigen;P. Simantiras;N. Willis;H. Lie
通讯作者：
G. Moe;T. Teigen;P. Simantiras;N. Willis;H. Lie
影响因子：
3.6
作者：
M. J. Thorsen;S. Sævik;C. M. Larsen
通讯作者：
M. J. Thorsen;S. Sævik;C. M. Larsen
DOI：
--
发表时间：
2014
期刊：
--
影响因子：
--
作者：
Haining Zheng
通讯作者：
Haining Zheng
影响因子：
3.6
作者：
Yuchao Yuan;Hong-xiang Xue;Wenyong Tang
通讯作者：
Yuchao Yuan;Hong-xiang Xue;Wenyong Tang
影响因子：
5
作者：
H. Elosta;Shan Huang;A. Incecik
通讯作者：
H. Elosta;Shan Huang;A. Incecik