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New method in suppressing vortex-induced vibration of marine riser
Zhong XF(钟兴福); Lin LM(林黎明); Wu YX(吴应湘); Shi SY(史仕荧); Zhong XF(钟兴福)
Conference Name2012 International Conference on Vibration, Structural Engineering and Measurement, ICVSEM 2012
Conference DateOCT 19-21, 2012
Conference PlaceShanghai, China
AbstractMarine risers are key apparatus in connecting the subsea wells to the oil production platform. When the ocean current flow past a riser, the vortex shedding behind riser may induce vibration. If the frequency of vortex shedding is approaching or equal to the natural frequency of riser, the resonance will be generated. Such phenomenon leads to the potential fatigue damage of riser. Therefore, the safety and assurance of marine risers are widely arousing the interest of offshore engineering. In present paper, previous apparatus or methods in suppressing vortex-induced vibration (VIV) of risers used in marine engineering are firstly analyzed, and correspondingly the conditions in design of VIV suppressors are proposed. Based on the Bernoulli equation, the disturbance in flow around a bluff body and the relationship of vortex shedding in span-wise direction, a new method of VIV suppression is proposed. The numerical results have shown that the vibration of risers could be reduced by such disturbance.
KeywordMarine Engineering Marine Risers Ocean Currents Production Platforms Structural Design Bernoulli Equations Bluff Body Numerical Results Ocean Current Flows Offshore Engineering Oil Production Platforms Potential Fatigue Subsea Wells Suppression Vortex Induced Vibration
Indexed ByEI
Document Type会议论文
Corresponding AuthorZhong XF(钟兴福)
Recommended Citation
GB/T 7714
Zhong XF,Lin LM,Wu YX,et al. New method in suppressing vortex-induced vibration of marine riser[C]VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II,2012:9-12.
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