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Title:
Effects of tension on vortex-induced vibration (VIV) responses of a long tensioned cylinder in uniform flows
Author: Kang L; Ge F(葛斐); Wu XD; Hong YS(洪友士)
Source: ACTA MECHANICA SINICA
Issued Date: 2017
Volume: 33, Issue:1, Pages:1-9
Abstract: 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.
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: Ge, F ; Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, 15 Beisihuan Xi Rd, Beijing 100190, Peoples R China.
Correspondent Email: gefei@imech.ac.cn ; hongys@imech.ac.cn
DOI: 10.1007/s10409-016-0604-0
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Engineering, Mechanical ; Mechanics
WOS Subject Extended: Engineering ; Mechanics
WOS Keyword Plus: Tension effect ; Maximum displacement ; Dominant vibration frequency ; Chaos
WOS ID: WOS:000394153000001
ISSN: 0567-7718
Funder: This project was supported by the Construction Technology Program of the Ministry of Transport (Grant 2013 318 740050).
Rank: [Kang, Ling; Ge, Fei; Wu, Xiaodong; Hong, Youshi] Chinese Acad Sci, Inst Mech, 15 Beisihuan Xi Rd, Beijing 100190, Peoples R China
Department: LNM金属材料微结构与力学性能
Classification: 二类
Ranking: 1
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/60098
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
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,2017-01-01,33(1):1-9.
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