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Title:
Effects of Varying Tension and Stiffness on Dynamic Characteristics and VIV of Slender Riser
Author: Chen WM(陈伟民); Zheng ZQ; Li M(李敏)
Issued Date: 2011
Conference Name: ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011)
Conference Date: June 19–24, 2011
Conference Place: Rotterdam, The Netherlands
Abstract: A 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.
Indexed Type: CPCI
Subject: 交叉与边缘领域的力学::环境流体力学
Related URLs: 查看原文
Source: CFD and VIV; Offshore Geotechnics
Language: 英语
Department: LMFS海洋环境与工程(LEM)
ISBN: 978-0-7918-4439-7
Content Type: 会议论文
URI: http://dspace.imech.ac.cn/handle/311007/45683
Appears in Collections:环境力学重点实验室(2009-2011)_会议论文

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Recommended Citation:
Chen WM,Zheng ZQ,Li M. Effects of Varying Tension and Stiffness on Dynamic Characteristics and VIV of Slender Riser[C]. 见:ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011). Rotterdam, The Netherlands. June 19–24, 2011.http://dx.doi.org/10.1115/OMAE2011-49295
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