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A Time Domain Investigation on the Hydrodynamic Resonance Phenomena of 3-D Multiple Floating Structures

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Abstract

A 3-D time domain method is developed to investigate the gap influence on the wave forces 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.

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Authors and Affiliations

  1. The State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China

    Hai-rong Zhu, Ren-chuan Zhu & Guo-ping Miao

Authors
  1. Hai-rong Zhu
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  2. Ren-chuan Zhu
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  3. Guo-ping Miao
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Corresponding author

Correspondence to Hai-rong Zhu.

Additional information

Project supported by the National Natural Science Foundation of China (Grant No. 50639020), the National High Technology Research and Development Program of China (863 Program, Grant No. 2006AA09Z332).

Biography: ZHU Hai-rong (1980-), Male, Ph. D. Candidate

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Zhu, Hr., Zhu, Rc. & Miao, Gp. A Time Domain Investigation on the Hydrodynamic Resonance Phenomena of 3-D Multiple Floating Structures. J Hydrodyn 20, 611–616 (2008). https://doi.org/10.1016/S1001-6058(08)60102-X

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  • DOI: https://doi.org/10.1016/S1001-6058(08)60102-X

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