Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations
文献类型：期刊论文
| 作者 | Song QY(宋清源)1,2 ; Liu, Jun1,2; Gao FP(高福平)1,2
|
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 12期号:9页码:18 |
| 关键词 | free-spanning pipeline vortex-induced vibration very high cycle fatigue pipeline-seabed interaction high-strength steel seawater environment |
| DOI | 10.3390/jmse12091556 |
| 通讯作者 | Gao, Fuping(fpgao@imech.ac.cn) |
| 英文摘要 | Free-spanning subsea pipelines subjected to vortex-induced vibrations (VIVs) are particularly prone to fatigue failure. Existing flume observations indicated that the VIVs of a near-bed cylinder may be triggered effectively in moderate shear flows. This may imply that the vibration cycles of a spanned pipeline could be up to tens of millions. As such, very high cycle fatigue (VHCF) can occur during engineering service. The free span length is a key parameter for determining the structural natural frequency and the corresponding reduced velocity (Vr). On the basis of the dimensionless vibration amplitude A/D-Vr curve and the recommended S-N curves for high-strength steel pipelines with cathodic protection under seawater environments, a prediction method is proposed for the fatigue life of a free span undergoing VIVs. A parametric study is then performed to evaluate the fatigue life of the spanned pipelines with a focus on VHCF. It is indicated that the minimum fatigue life emerges at certain flow with a moderate velocity for a given span length. With a further decrease or increase in the flow velocity, the fatigue life would be enhanced correspondingly, which could be within the VHCF regime. Such nonlinear variation of the fatigue life with the span length and the flow velocity is attributed to being involved in various VIV branches of the A/D-Vr curve. |
| 分类号 | 二类/Q1 |
| WOS关键词 | STEEL WELDED-JOINTS ; CRACK INITIATION ; SUBMARINE PIPELINE ; CIRCULAR-CYLINDER ; BEARING STEEL ; MECHANISM ; CORROSION ; BEHAVIOR ; REGIME ; LENGTH |
| 资助项目 | National Natural Science Foundation of China ; [12061160463] ; [11825205] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001323144600001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Gao, Fuping |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96880]  |
| 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.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Song QY,Liu, Jun,Gao FP. Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2024,12(9):18. |
| APA | 宋清源,Liu, Jun,&高福平.(2024).Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(9),18. |
| MLA | 宋清源,et al."Very High Cycle Fatigue Life of Free-Spanning Subsea Pipeline Subjected to Vortex-Induced Vibrations".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.9(2024):18. |
入库方式： OAI收割
来源：力学研究所
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