IMECH-IR  > 环境力学重点实验室(2009-2011)
Effects of Varying Tension and Stiffness on Dynamic Characteristics and VIV of Slender Riser
Chen WM(陈伟民); Zheng ZQ; Li M(李敏)
Source PublicationCFD and VIV; Offshore Geotechnics
2011
Conference NameASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011)
Conference DateJune 19–24, 2011
Conference PlaceRotterdam, The Netherlands
AbstractA time-domain approach for predicting dynamic characteristics and vortex-induced vibration (VIV) response of deepwater risers is proposed by coupling finite element simulation and a hydrodynamic model. Numerical results indicate that axially varying structural parameters can efficiently change the modal wave length as well as the modal displacement. Further, VIV response indicates that vibration amplitude depends on a complex synthetical effect of tension, stiffness and wave length. Generally speaking, for lower modes the response amplitude is larger at the axial position where tension is smaller, whereas for higher modes the response amplitude is larger at the axial position where bending stiffness is lower. Moreover, vibration wave velocity increases with increasing modal wave length.
DepartmentLMFS海洋环境与工程(LEM)
ISBN978-0-7918-4439-7
URL查看原文
Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45683
Collection环境力学重点实验室(2009-2011)
Recommended Citation
GB/T 7714
Chen WM,Zheng ZQ,Li M. Effects of Varying Tension and Stiffness on Dynamic Characteristics and VIV of Slender Riser[C]CFD and VIV; Offshore Geotechnics,2011.
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