| 王金龙, 熊鑫, 盛磊祥, 郭江艳, 李振华, 何杨烨.基于广义积分变换法的内外流耦合钻井隔水管涡激振动研究[J].海洋工程,2025,(6):1~13 |
| 基于广义积分变换法的内外流耦合钻井隔水管涡激振动研究 |
| Study on vortex-induced vibration of internal and external flow coupling drilling riser based on generalized integral transform method |
| 投稿时间：2024-10-06 |
| DOI：10.16483/j.issn.1005-9865.2025.06.001 |
| 中文关键词: 钻井隔水管 时空变化张力 内外流耦合 非线性扩散尾流振子 广义积分变换 |
| 英文关键词:drilling riser temporal and spatially varying tension internal and external flow coupling nonlinear diffusion wake oscillator generalized integral transform |
| 基金项目:国家能源深水油气工程技术研发中心2023年重点实验室开放基金课题（2023KY-GC03） |
|
| 摘要点击次数: 88 |
| 全文下载次数: 33 |
| 中文摘要: |
| 涡激振动会导致钻井隔水管产生严重的疲劳损伤，准确预测其振动行为对隔水管的安全稳定运行至关重要。文章针对时空变化张力隔水管在内外流耦合作用下的涡激振动特性进行研究，将隔水管简化为欧拉-伯努利梁，结合非线性扩散尾流振子模拟水动力过程，采用广义积分变换法求解耦合的运动控制方程，分析了时空变化张力、海水流速及内外流耦合作用对隔水管涡激振动的影响。结果表明：在时空变化张力作用下隔水管振动位移更小、振动频率更大且表现出多频响应特性；海水流速提升会激活更多的振动模态，在较低海水流速下隔水管振动主要表现为驻波特征，而在较高海水流速下则主要表现为行波特征；内外流耦合作用下隔水管的涡激振动响应表现出显著的复杂性，特定的内外流速组合会导致隔水管振动的稳定性下降，出现动力发散失稳现象。研究结果可为钻井隔水管系统的设计、运维提供理论依据和技术支持。 |
| 英文摘要: |
| Vortex-induced vibration (VIV) can cause serious fatigue damage to drilling risers. Accurate prediction of vibration behavior is essential for ensuring their safe and stable operation. This study investigates the VIV characteristics of a riser with temporally and spatially varying tension under the coupled effects of internal and external flows. The riser is modeled as an Euler-Bernoulli beam, and the hydrodynamic forces are simulated using a nonlinear diffusion wake oscillator. The coupled governing equations are solved via the generalized integral transform method. The influences of varying tension, ocean current velocity, and internal-external flow coupling on the VIV response are analyzed. Results indicate that temporal and spatial variation in tension leads to reduced vibration displacement, increased vibration frequency, and multi-frequency response characteristics. As sea current velocity increases, more vibration modes are activated. At lower velocities, the riser exhibits standing wave characteristics, while at higher velocities, traveling wave features dominate. The VIV response under internal-external flow coupling displays significant complexity, where certain combinations of internal and external flow rates reduce vibration stability and induce dynamic divergence. These findings provide a theoretical foundation and technical support for the design and operation of drilling riser systems. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|
