Physical modeling of VIV hysteresis of an elastically mounted circular cylinder: Mass-damping Effect
文献类型：期刊论文
| 作者 | Liu J(刘俊)1,3; Gao FP(高福平)1,2,3 ; Liu XM(刘小明)1,2; Qi WG(漆文刚)1,3
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| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 319页码:13 |
| 关键词 | Vortex-induced vibrations VIV hysteresis Lock-in Lock-out Mass-damping parameter Circular cylinder |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2024.120221 |
| 通讯作者 | Gao, Fu-Ping(fpgao@imech.ac.cn) |
| 英文摘要 | In previous studies, critical reduced velocity for triggering vortex-induced vibrations (VIVs) of an elastically mounted cylinder was commonly obtained under the increasing velocity condition. Nevertheless, the natural flows featured with either increasing or decreasing velocities may result in VIV hysteresis. In this study, the VIV hysteresis of a circular cylinder fully immersed in a turbulent shear flow was physically modeled in a large water flume with an accessorial low structural-damping VIV device. Synchronous measurements and analyses were made for the time-variations of the vibration displacement and the lee-wake velocity fluctuations. Mass-damping effects on the VIV hysteresis are examined. The "beating-like" intermittent vibrations were observed under the low-K-s condition; and dual-peaks can be well identified in their frequency spectra. Nevertheless, for higher values of the combined mass-damping parameter K-s (e.g. K-s = 0.125), such dual-peaks of vibration frequency were not observed in the drop-down process during the decreasing-velocity half-cycle. Experimental results indicate that the upper-critical reduced velocity (Vr(cr-upper)) for the VIV initiation in an increasing-velocity flow is basically constant (4.05) for 0.03 < K-s < 0.08, and increases gradually to a larger constant (4.65) with further increase of K-s from 0.08 to 0.16. But the lower-critical reduced velocity (Vr(cr-lower)) for the cessation of VIVs under decreasing-velocity condition becomes much smaller than the corresponding upper-critical value. The VIV hysteresis can thereby be quantitatively characterized by the range between the upper- and lower-critical reduced velocities, i.e. Delta Vr(cr) = Vr(cr-upper) - Vr(cr-lower). The relationship between Delta Vr(cr) and K-s is eventually established by fitting the experimental results. The relative deviation of the VIV hysteresis from the upper-critical reduced velocity (i.e. Delta Vr(cr)/Vr(cr-upper)) can reach from approximately 22% up to 42%, indicating the VIV hysteresis effect gets much more significant with increasing K-s. |
| 分类号 | 一类 |
| WOS关键词 | VORTEX-INDUCED VIBRATIONS ; FLOW ; PIPELINE ; FORCES |
| 资助项目 | National Natural Science Foundation of China[12061160463] ; National Natural Science Foundation of China[11825205] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001400006600001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Gao, Fu-Ping |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/98219]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu J,Gao FP,Liu XM,et al. Physical modeling of VIV hysteresis of an elastically mounted circular cylinder: Mass-damping Effect[J]. OCEAN ENGINEERING,2025,319:13. |
| APA | 刘俊,高福平,刘小明,&漆文刚.(2025).Physical modeling of VIV hysteresis of an elastically mounted circular cylinder: Mass-damping Effect.OCEAN ENGINEERING,319,13. |
| MLA | 刘俊,et al."Physical modeling of VIV hysteresis of an elastically mounted circular cylinder: Mass-damping Effect".OCEAN ENGINEERING 319(2025):13. |
入库方式： OAI收割
来源：力学研究所
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