A TIME DOMAIN INVESTIGATION ON THE HYDRODYNAMIC RESONANCE PHENOMENA OF 3-D MULTIPLE FLOATING STRUCTURES

A 3-D time domain method is developed to investigate the gap influence on the wave threes for 3-D multiple floating structures. Special hydrodynamic resonance due to small gaps between multiple floating structures on wave forces is examined. Strong and complicate hydrodynamic interactions between th...

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Bibliographic Details
Published in:Journal of Hydrodynamics 2008-10, Vol.20 (5), p.611-616
Main Authors: ZHU, Hai-rong, ZHU, Ren-chuan, MIAO, Guo-ping
Format: Article
Language:English
Subjects:
Engineering
Engineering Fluid Dynamics
gap influence
hydrodynamic interaction
Hydrology/Water Resources
multiple floating bodies
Numerical and Computational Physics
resonance
Simulation
time domain
共振技术
时间域
流体动力学
浮动体
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Summary:A 3-D time domain method is developed to investigate the gap influence on the wave threes for 3-D multiple floating structures. Special hydrodynamic resonance due to small gaps between multiple floating structures on wave forces is examined. Strong and complicate hydrodynamic interactions between the floating bodies are observed and the numerical computations have proved the existence of the sharp peak force response on each floating body at some special resonant wave numbers. By comparison with the results from the frequency domain technique, the results obtained from the time domain method reveal the similar resonant phenomena and hydrodynamic interaction. The resonant wave numbers are also proved around kL-nπ （n = 1,2 ……∞） with a corresponding frequency shift. The strong hydrodynamic interaction feature is practically significant for the design of module structures and the links （connection） in whole the floating body system.
ISSN:1001-6058
1878-0342
1000-4874
DOI:10.1016/S1001-6058(08)60102-X