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Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows
Kang L(康凌); Ge F(葛斐); Wu XD(武晓东); Hong YS(洪友士)
2017
发表期刊ACTA MECHANICA SINICA
卷号33期号:1页码:1-9
ISSN0567-7718
摘要

The effects of tension on vortex-induced vibration (VIV) responses for a tension-dominated long cylinder with an aspect ratio of 550 in uniform flows are experimentally investigated in this paper. The results show that elevated tension suppresses fluctuations of maximum displacement with respect to flow velocity and makes chaotic VIV more likely to appear. With respect to periodic VIV, if elevated tension is applied, the dominant vibration frequency in the in-line (IL) direction will switch from a fundamental vibration frequency to twice the value of the fundamental vibration frequency, which results in a ratio of the dominant vibration frequency in the IL direction to that in the cross-flow direction of 2.0. The suppression of the elevated tension in the fluctuation of the maximum displacement causes the axial tension to become an active control parameter for the VIV maximum displacement of a tension-dominated long riser or tether of an engineering structure in deep oceans. However, the axial tension must be optimized before being used since the high dominant vibration frequency due to the elevated tension may unfavorably affect the fatigue life of the riser or tether.

DOI10.1007/s10409-016-0604-0
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收录类别SCI ; EI ; CSCD
语种英语
WOS记录号WOS:000394153000001
关键词[WOS]Tension Effect ; Maximum Displacement ; Dominant Vibration Frequency ; Chaos
WOS研究方向Engineering ; Mechanics
WOS类目Engineering, Mechanical ; Mechanics
项目资助者This project was supported by the Construction Technology Program of the Ministry of Transport (Grant 2013 318 740050).
CSCD记录号CSCD:5928107
课题组名称LNM金属材料微结构与力学性能
论文分区二类
力学所作者排名1
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/60098
专题非线性力学国家重点实验室
通讯作者Ge F(葛斐); Hong YS(洪友士)
推荐引用方式
GB/T 7714
Kang L,Ge F,Wu XD,et al. Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows[J]. ACTA MECHANICA SINICA,2017,33(1):1-9.
APA Kang L,Ge F,Wu XD,&Hong YS.(2017).Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows.ACTA MECHANICA SINICA,33(1),1-9.
MLA Kang L,et al."Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows".ACTA MECHANICA SINICA 33.1(2017):1-9.
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