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A numerical study on responses of submerged floating structures undergoing vortex-induced vibration and seismic excitation
Kang L(康凌); Ge F(葛斐); Wu XD(武晓东); Hong YS(洪友士); Ge, F (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationPROCEEDINGS OF 2ND INTERNATIONAL SYMPOSIUM ON SUBMERGED FLOATING TUNNELS AND UNDERWATER TUNNEL STRUCTURES (SUFTUS-2016)
2016
Conference Name2nd International Symposium on Submerged Floating Tunnels and Underwater Tunnel Structures (SUFTUS)
Conference DateDEC, 2016
Conference PlaceChongqing, PEOPLES R CHINA
AbstractThe dynamic responses of submerged floating structures undergoing vortex-induced vibration and seismic excitation were numerically investigated. The tube and tethers of submerged floating structures were assumed as an Euler-Bernoulli beam and the hinged supports of the tube, respectively. The wakes behind the tube were regarded as distributed oscillators. With the consideration of the fluid-structure interaction, the prediction model of the responses was established. Numerical results show that the tube responses of the submerged floating structures subjected to the vortex induced forces and seismic excitation have the feature of nonlinearity. Superposition method is not suitable for the solution of such responses. As the tether spacing reduces, the maximum displacement of the tube, the constraint forces and the constraint moments of all the supports of the tube reduce. In the same variation interval of the tether spacing, the maximum displacements reduce most its values. The tube vibration of the submerged floating structure presents more periodicity when the tether spacing reduces. (C) 2016 The Authors. Published by Elsevier Ltd.
KeywordFluid-structure Interaction Nonlinearity Tether Spacing Tunnel Prototype China
WOS IDWOS:000391598500012
DepartmentLNM金属材料微结构与力学性能
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Indexed ByCPCI-S ; EI
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60190
Collection非线性力学国家重点实验室
Corresponding AuthorGe, F (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Kang L,Ge F,Wu XD,et al. A numerical study on responses of submerged floating structures undergoing vortex-induced vibration and seismic excitation[C],2016.
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