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http://dx.doi.org/10.7837/kosomes.2016.22.6.615

A Numerical Simulation of Hydrodynamic Interactions Between Two Moored Barges with Regular Waves  

Lee, Sang-Do (Graduate School of Korea Maritime and Ocean University)
Bae, Byung-Deug (Division of Ship Navigation, Korea Maritime and Ocean University)
Kim, Dae-Hae (Korea e-Navi Information Technology Co. LTd.)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.22, no.6, 2016 , pp. 615-624 More about this Journal
Abstract
In this study, two rectangular barges in close proximity were simulated to analyze the characteristics of motion responses due to hydrodynamic interactions. Using a numerical solution from DNV-GL SESAM, coupled stiffness matrix terms for these same FEM models were added to the multiple body modes in the surge direction. Potential theory was used to calculate the first order radiation and diffraction effects on the simulated barge models. In the results, the sheltering effect of the barges was not shown at 1.3 rad/s with hull separation of 20 m in transverse waves. The separation effect between the barges was more clear with longitudinal waves and a shallow water depth. However, sway forces were influenced by hull separation with transverse waves. The peaks for sway and heave motion and sway force occurred at higher frequencies as hull separation narrowed with longitudinal and transverse waves. Given a depth of 10 m, the sway motion on the lee side of a coupled barge made a significant difference in the range of 0.2-0.8 rad/s with transverse and oblique waves. Also, the peaks for sway force were situated at lower frequencies, even when incident waves changed.
Keywords
Hydrodynamic interactions; Sheltering effect; Hull separation; Wave direction; Lee side barge;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Hong, S. Y., J. H. Kim, S. K. Cho, Y. R. Choi and Y. S. Kim(2005), Numerical and Experimental Study on Hydrodynamic Interaction of Side-by-Side Moored Multiple Vessels, Ocean Engineering, Vol. 32, pp. 783-801.   DOI
2 Kim, K. H. and Y. H. Kim(2008), Time-Domain Analysis on Motion Responses of Adjacent Multiple-Bodies in Waves, Journal of the Society of Naval Architects of Korea, Vol. 45, No. 1, pp. 63-72.   DOI
3 Kim, M. S. and M. K. Ha(2002), Prediction of Motion Responses between Two Offshore Floating Structures in Waves, Journal of Ship & Ocean Technology, Vol. 6, No. 3, pp. 13-25.
4 Kim, Y. B.(2003), Dynamic Analysis of Multiple-Body Floating Platforms Coupled with Mooring Lines and Risers, Ph. D. Thesis, Texas A&M university, pp. 28-40.
5 Pessoa, J., N. Fonseca and C. G. Soares(2015), Numerical Study of the Coupled Motion Responses in Waves of Side-by-Side LNG Floating Systems, Applied Ocean Research, Vol. 51, pp. 350-366.   DOI
6 Xu, Y. and W. Dong(2013), Numerical Study on Wave Loads and Motions of Two Ships Advancing in Waves by using Three-Dimensional Translating-pulsating Source, The Journal of Acta Mechanica Sinica, Vol. 29, No. 4, pp. 494-502.   DOI
7 Ali, M. T. and Y. Inoue(2005), On Hydrodynamic Interaction between Two Rectangular Barges Floating Side-by-Side in Regular Waves, Proceedings of the International Conference on Mechanical Engineering, Dhaka, Bangladesh, pp. 1-6.
8 Choi, Y. R. and S. Y. Hong(2002), An Analysis of Hydrodynamic Interaction of Floating Multi-body using Higher-Order Boundary Element Method, Proceedings of 12th International Offshore and Polar Engineering Conference, Kitakyushu, Japan, pp. 303-308.
9 Buchner, B., A. Dijk and J. Wilde(2001), Numerical Multiple-Body Simulations of Side-by-Side Mooring to an FPSO, Proceedings of 11th International Offshore and Polar Engineering, Stavanger, Norway, pp. 1-11.
10 Bunnik, T., W. Pauw and A. Voogt(2009), Hydrodynamic Analysis for Side-by-Side Offloading, Proceedings of the 19th International Offshore and Polar Engineering Conference, Osaka, Japan, pp. 648-653.
11 Clauss, G. F., M. Dudek and D. Testa(2013), Gap Effects at Side-by-Side LNG-transfer Operations, Proceedings of the 32nd International Conference on Ocean, Offshore and Arctic Engineering, Nantes, France, pp. 1-8.
12 DNV(2010a), Global Performance Analysis of Deepwater Floating Structures, Recommended Practice, DNV-RP-F205, Det Norske Veritas, Hovik, Norway, pp. 7-8.
13 DNV(2010b), Wave Analysis by Diffraction and Morison theory, Report No. 94-7100, Det Norske Veritas, Hovik, Norway, pp. 35-65.
14 Fournier, J. R., M. Naciri and X. B. Chen(2006), Hydrodynamics of Two Side-by-Side Vessels Experiments and Numerical Simulations, Proceedings of the 16th International Offshore and Polar Engineering Conference, San Francisco, USA, pp. 158-165.