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Study on Pure IL VIV of A Free Spanning Pipeline Under General Boundary Conditions

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文摘 Pipeline spans may occur due to natural seabed irregularities or local scour of bed sediment. The pure in-line (IL) vortex-induced vibrations (VIV) analysis of the free spans is an important subject for design of pipeline in uneven seabed. The main objective of this paper is to analyze the characteristics of pure IL VIV of a free spanning pipeline under general boundary conditions. An IL wake oscillator model which can describe the coupling of pipeline structure and fluctuating drag is introduced and employed. The coupled partial differential equations of structure and wake are transformed into a set of ordinary differential equations using two-mode Galerkin method. Some case studies are presented and thoroughly discussed in order to investigate the effects of internal fluid, axial force and boundary conditions on the pure IL VIV.
来源 China Ocean Engineering ,2017,31(1):114-122 【核心库】
DOI 10.1007/s13344-017-0014-5
关键词 free spanning pipeline ; vortex-induced vibrations ; boundary conditions ; internal fluid
地址

1. Tianjin University, State Key Laboratory of Hydraulic Engineering Simulation and Safety;;Collaborative Innovation Centre for Advanced Ship and Deep-Sea Exploration, Tianjin, 300072  

2. Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190  

3. Tianjin University, State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin, 300072

语种 英文
文献类型 研究性论文
ISSN 0890-5487
基金 国家973计划 ;  国家自然科学基金 ;  国家自然科学基金创新研究群体项目
文献收藏号 CSCD:5928138

参考文献 共 30 共2页

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引证文献 2 篇

1 Liu Xiuquan Optimization Design of Fairings for VIV Suppression Based on Data-Driven Models and Genetic Algorithm China Ocean Engineering,2021,35(1):153-158
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2 Li Yanwei Dynamic Analysis of A Deepwater Drilling Riser with A New Hang-off System China Ocean Engineering,2024,38(1):29-41
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