PREDICTION OF VORTEX-INDUCED VIBRATION OF FLEXIBLE RISER USING AN IMPROVED WAKE-OSCILLATOR MODEL
文献类型：会议论文
| 作者 | Chen WM(陈伟民) ; Zhang LW; Li M; Chen WM
|
| 出版日期 | 2009 |
| 会议名称 | 28th International Conference on Ocean, Offshore and Arctic Engineering |
| 会议日期 | MAY 31-JUN 05, 2009 |
| 会议地点 | Honolulu, HI |
| 关键词 | Circular-Cylinder Added-Mass Forces |
| 页码 | 377-383 |
| 通讯作者 | Chen WM |
| 中文摘要 | Based on improving the wake-oscillator model, an analytical model for vortex-induced vibration (VIV) of flexible riser under non-uniform current is presented, in which the variation of added mass at lock-in and the nonlinear relationship between amplitude of response and reduced velocity are considered. By means of empirical formula combining iteration computation, the improved analytical model can be conveniently programmed into computer code with simpler and faster computation process than CFD so as to be suitable to application of practical engineering. This model is validated by comparing with experimental result and numerical simulation. Our results show that the improved model can predict VIV response and lock-in region more accurately. At last, illustrative examples are given in which the amplitude of response of flexible riser experiencing VIV under action of non-uniform current is calculated and effects of riser tension and flow distribution along span of riser are explored. It is demonstrated that with the variation of tension and flow distribution, lock-in region of mode behaves in different way, and thus the final response is a synthesis of response of locked modes. |
| 收录类别 | CPCI-S ; EI |
| 会议网址 | http://dx.doi.org/10.1115/OMAE2009-79283 |
| 会议录 | OMAE 2009, VOL 5
 |
| 语种 | 英语 |
| ISBN号 | 978-0-7918-4345-1 |
| WOS记录号 | WOS:000282991700042 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44324]  |
| 专题 | 力学研究所_环境力学重点实验室(2009-2011) |
| 通讯作者 | Chen WM |
| 推荐引用方式 GB/T 7714 | Chen WM,Zhang LW,Li M,et al. PREDICTION OF VORTEX-INDUCED VIBRATION OF FLEXIBLE RISER USING AN IMPROVED WAKE-OSCILLATOR MODEL[C]. 见:28th International Conference on Ocean, Offshore and Arctic Engineering. Honolulu, HI. MAY 31-JUN 05, 2009.http://dx.doi.org/10.1115/OMAE2009-79283. |
入库方式： OAI收割
来源：力学研究所
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