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	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)
	2011
会议名称	ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011)
会议日期	June 19–24, 2011
会议地点	Rotterdam, The Netherlands
中文摘要	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.
收录类别	CPCI
合作状况	国内
会议网址	http://dx.doi.org/10.1115/OMAE2011-49295
会议录	CFD and VIV; Offshore Geotechnics
学科主题	环境流体力学
语种	英语
ISBN号	978-0-7918-4439-7
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/45683]
专题	力学研究所_环境力学重点实验室(2009-2011)
推荐引用方式 GB/T 7714	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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