Vortex-induced vibration (VIV) fatigue damage characteristics of submarine multispan pipelines
文献类型：期刊论文
| 作者 | Lu, Yan1; Liu, Zhanxiang1; Xu, Wanhai1; Ma YX(马烨璇)2 |
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 324 |
| 关键词 | Vortex-induced vibration (VIV) Multispan pipeline Fatigue damage characteristics VIV suppression Helical strakes |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2025.120666 |
| 英文摘要 | In offshore engineering, the free-spanning phenomenon frequently occurs in submarine pipelines. Multiple freespan pipelines are usually susceptible to more severe vortex-induced vibration (VIV) because of interactive effects between adjacent spans, resulting in potential fatigue damage. However, little attention has been given to the VIV fatigue damage characteristics of multispan pipelines. In this work, considering the pipe-sediment interaction, model experiments were carried out on multispan pipelines to investigate the VIV fatigue damage features of double-span and triple-span pipelines. The VIV fatigue damage of the pipeline models was calculated via the S-N curve method and the linear accumulative damage law. The effects of the span ratio, burial depth, and axial tension force on VIV fatigue characteristics were studied in terms of the fatigue damage distribution and maximum fatigue damage. The results indicated that neighboring interactions and pipe-sediment interactions considerably influence VIV fatigue damage in multispan pipelines. The variation in the span ratio significantly affects the fatigue damage distribution of adjacent spans. As the length difference between adjacentspan pipelines increases, the fatigue damage of the longer span greatly intensifies. However, with increasing burial depth, the VIV of the pipeline model decreases, and the fatigue damage is alleviated because the boundary constraint is strengthened. The increasing axial tension force can also somewhat reduce the maximum fatigue damage. Additionally, the suppression effect of the three-start helical strake on the VIV fatigue features of a multispan pipeline was also experimentally studied. The coverage rate of the helical strakes had a pronounced effect on the suppression efficiency. A coverage rate of 75% can have a more effective VIV suppression effect, with the maximum suppression efficiency exceeding 90%. |
| 分类号 | 一类 |
| WOS研究方向 | Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001432673500001 |
| 资助机构 | This research work was financially supported by the National Nat-ural Science Foundation of China (Grant Nos. U2106223 and 52278199) . |
| 其他责任者 | Xu, Wanhai |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101442]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Tianjin University; 2.Institute of Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Lu, Yan,Liu, Zhanxiang,Xu, Wanhai,et al. Vortex-induced vibration (VIV) fatigue damage characteristics of submarine multispan pipelines[J]. OCEAN ENGINEERING,2025,324. |
| APA | Lu, Yan,Liu, Zhanxiang,Xu, Wanhai,&马烨璇.(2025).Vortex-induced vibration (VIV) fatigue damage characteristics of submarine multispan pipelines.OCEAN ENGINEERING,324. |
| MLA | Lu, Yan,et al."Vortex-induced vibration (VIV) fatigue damage characteristics of submarine multispan pipelines".OCEAN ENGINEERING 324(2025). |
入库方式： OAI收割
来源：力学研究所
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