IMECH-IR  > 环境力学重点实验室(2009-2011)
Controlling Parameter for Wave Types of Long Flexible Riser Undergoing Vortex-Induced Vibration
Zhang LW; Chen WM(陈伟民); Chen, WM (reprint author), Chinese Acad Sci, Inst Mech, Lab Environm Mech, Beijing 100190, Peoples R China.
2010
会议名称29th ASME International Conference on Ocean, Offshore and Arctic Engineering
会议日期Shanghai, PEOPLES R CHINA
会议地点Qiandao Lake, PEOPLES R CHINA
会议录名称PROCEEDINGS OF THE ASME 29TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING 2010, VOL 5, PTS A AND B
摘要The aspect ratio of slender underwater structures of deep sea platforms such as riser, oil pipelines, tension legs and anchor chains increases with the mining depth increasing, the values of which often approach to 103 order. Investigation results in recent years show that the vortex-induced vibration of the flexible marine risers with large aspect ratio reveals some new phenomena, for example, the vortex-induced wave, multi-mode competition, wide band random vibration, which have brought new challenges to the study of vortex-induced vibration of long flexible risers. In this paper, the dimensionless parameter controlling the wave types of dynamic response of slender risers undergoing vortex-induced vibration is investigated by means of dimensional analysis and finite element numerical simulations (MSC Nastran). Our results indicate that there are three types of response for a slender riser, i.e. standing wave vibration, traveling wave vibration and intermediate state. Based on dimensional analysis the controlling parameter is found to be related to the system damping including fluid clamping and structural damping, order number of the locked-in modes and the aspect ratio of riser. Furthermore through numerical simulations and function fitting, the expression and the critical value of the controlling parameter is presented. At last the physical meaning of the parameter is analyzed and discussed.
关键词Deepwater Riser Lock-on Vortex-induced Vibration Standing Wave Traveling Wave
课题组名称LMFS海洋环境与工程(LEM)
ISBN号978-0-7918-4913-2
收录类别CPCI-S ; EI
语种英语
引用统计
文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/58871
专题环境力学重点实验室(2009-2011)
通讯作者Chen, WM (reprint author), Chinese Acad Sci, Inst Mech, Lab Environm Mech, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Zhang LW,Chen WM,Chen, WM . Controlling Parameter for Wave Types of Long Flexible Riser Undergoing Vortex-Induced Vibration[C],2010.
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