IMECH-IR  > 环境力学重点实验室(2009-2011)
A Finite Element Study of Multi-Mode VIV of Slender Riser Experiencing Non-Uniform Flow
Li M(李敏); Chen WM(陈伟民); Zhang LW(张立武)
Source Publication李敏;陈伟民;张立武.A Finite Element Study of Multi-Mode VIV of Slender Riser Experiencing Non-Uniform Flow.2011
2011
Conference NameASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011)
Conference Date2011
Conference PlaceRotterdam, The Netherlands
AbstractThe dynamic characteristics of deepwater riser usually present serried modes with lower frequencies, because structural flexibility is very large due to high aspect ratio (ratio of length to diameter of riser). Moreover, in practice flow velocity usually distributes non-uniformly along the riser length. A coupling model, for multi-mode VIV (vortex-induced vibration) of slender riser experiencing non-uniform flow, by means of finite element simulation combined with the hydrodynamic model taking account of the interaction between fluid and structure in time-domain, is proposed. VIV responses of slender risers respectively in uniform, stepped and shear flow are explored. Satisfied agreements with experiment results are observed. Additionally, based on the numerical simulations effects of reduced velocity and modal energy on modal weight are explored. We note that for case of multi-mode vibration the participating modes tend to distribute by groups.
WOS IDWOS:000314793700023
DepartmentLMFS海洋环境与工程(LEM)
ISBN978-0-7918-4439-7
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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/311007/45656
Collection环境力学重点实验室(2009-2011)
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GB/T 7714
Li M,Chen WM,Zhang LW. A Finite Element Study of Multi-Mode VIV of Slender Riser Experiencing Non-Uniform Flow[C]李敏;陈伟民;张立武.A Finite Element Study of Multi-Mode VIV of Slender Riser Experiencing Non-Uniform Flow.2011,2011.
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