Paper Titles
Preface, Sponsors and Organizing Committee
Free Vibration Analysis on Combined Cylindrical-Spherical Shell
p.3
New Method in Suppressing Vortex-Induced Vibration of Marine Riser
p.9
Flow-Induced Vibration Study of Tunnel Spillway Working Gate on One Reservoir
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Simulative Analysis of Structure Vibration of Diesel Engine Based on Finite Element Method
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Optimal Design and Test of Ultrasonic Vibration System
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Application of the Force Transferring Technique for Marine Machineries
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Numerical Analysis for Galloping of Iced Quad Bundle Conductors
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Analysis on Tower Crane under Wind Load by ANSYS
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New Method in Suppressing Vortex-Induced Vibration of Marine Riser

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Abstract:

Marine 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.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 226-228)

Pages:

9-12

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.226-228.9

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Cite this paper

Online since:

November 2012

Authors:

Xing Fu Zhong, Li Ming Lin, Ying Xiang Wu, Shi Ying Shi

Keywords:

Marine Risers, Suppression, Vortex-Induced Vibration (VIV)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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