Effects of Varying Tension and Stiffness on Dynamic Characteristics and VIV of Slender Riser

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)
会议录名称	CFD and VIV; Offshore Geotechnics
	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
摘要	Atime-domain approach for predicting dynamic characteristics and vortex-induced vibration (VIV)response of deepwater risers is proposed by coupling finite elementsimulation and a hydrodynamic model. Numerical results indicate that axiallyvarying structural parameters can efficiently change the modal wave lengthas well as the modal displacement. Further, VIV response indicatesthat vibration amplitude depends on a complex synthetical effect oftension, stiffness and wave length. Generally speaking, for lower modesthe response amplitude is larger at the axial position wheretension is smaller, whereas for higher modes the response amplitudeis larger at the axial position where bending stiffness islower. Moreover, vibration wave velocity increases with increasing modal wavelength.
课题组名称	LMFS海洋环境与工程(LEM)
ISBN号	978-0-7918-4439-7
URL	查看原文
收录类别	CPCI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/45683
专题	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]CFD and VIV; Offshore Geotechnics,2011.

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