| Dynamic characteristics and VIV of deepwater riser with axially varying structural properties | |
Chen WM(陈伟民) ; Li M(李敏); Zheng ZQ(郑仲钦); Tan TC; Chen, WM; Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China.
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| Source Publication | OCEAN ENGINEERING
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| 2012-03-01 | |
| Volume | 42Pages:7-12 |
| ISSN | 0029-8018 |
| Abstract | A time-domain approach for predicting dynamic characteristics and vortex-induced vibration (VIV) response of deepwater risers is proposed based on finite element simulation combined with a hydrodynamic model. Effects of axially varying structural parameters, i.e. the effective tension and bending stiffness, on the dynamic characteristics and VIV of slender riser are examined using the presented approach. Our numerical results indicate that axially varying structural parameters can efficiently change the modal wave length as well as the modal displacement. The vibration amplitude of riser VIV response is influenced by the complex effect of factors involving the axial tension, bending stiffness and modal wave length. Generally speaking, for lower modes the response amplitude is larger at the axial position where the tension is smaller, whereas for higher modes the response amplitude is larger at the axial position where the bending stiffness is lower. Moreover, vibration wave velocity increases with increasing modal wave length along the riser length. |
| Keyword | Deepwater Riser Varying Tension Vortex-induced Vibration Dynamic Characteristics Vortex-induced Vibrations Marine Risers Prediction Tethers Long |
| Subject Area | 流固耦合作用 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000301703000002 |
| Funding Organization | This work is supported by the Intellectual Innovation Project of the Chinese Academy of Sciences (Grant no. KJCX2-YW-L07) and the Fundamental Research Funds for the Central Universities (Grant no. YWF-10-01-B05). |
| Department | LMFS海洋环境与工程(LEM) |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46630 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Chen, WM; Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Chen WM,Li M,Zheng ZQ,et al. Dynamic characteristics and VIV of deepwater riser with axially varying structural properties[J]. OCEAN ENGINEERING,2012,42:7-12. |
| APA | 陈伟民,李敏,郑仲钦,Tan TC,Chen, WM,&Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China..(2012).Dynamic characteristics and VIV of deepwater riser with axially varying structural properties.OCEAN ENGINEERING,42,7-12. |
| MLA | 陈伟民,et al."Dynamic characteristics and VIV of deepwater riser with axially varying structural properties".OCEAN ENGINEERING 42(2012):7-12. |
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