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Time Domain Analysis on Deck Wetness of a Caisson Wet-towed in Irregular Waves
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 Title & Authors
Time Domain Analysis on Deck Wetness of a Caisson Wet-towed in Irregular Waves
Heo, Jae-Kyung; Park, Chang-Wook;
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 Abstract
A numerical analysis on deck wetness is carried out for a large caisson directly wet-towed by tugs in irregular waves. A constant panel method is used for linear analysis in frequency domain and a statistical post-processing for the deck wetness is presented. Hydrodynamic coefficients obtained from the frequency domain computation are imported for time domain analysis which enables complete modeling for towing equipment, environment, etc. Both frequency and time domain computations over two sea states are performed and comparison is made. In the time domain analysis, towing systems of various arrangements of tugs are investigated from short-term prediction for the largest deck wetness and the number of occurrences of deck wetness.
 Keywords
deck wetness;wet-towing;caisson;time domain seakeeping analysis;
 Language
Korean
 Cited by
 References
1.
DNV-RP-C205. (2014). Environmental conditions and environmental loads. Det Norske Veritas. 115-130.

2.
Faltinsen, O. M. (1993). Sea Loads on Ships and Offshore Structures. 23-25.

3.
GL Noble Denton 0031/ND. (2013). Guidelines for float-over installations/removals. GL Noble Denton. 16-21.

4.
Kim, Y.J. (2005). Estimation of impact loads of slamming and green water and its application to design. Bulletin of the Society of Naval Architects of Korea. 42(2), 26-40.(in Korean)

5.
Lee, C.-H. (1995). WAMIT theory manual. MIT.

6.
NATO. (1998). STANAG 4154 (edition 3)-Common procedures for seakeeping in the ship design process.

7.
Nielsen, F.G. (2007). Lecture notes in marine operations. Norwegian University of Science and Technology. 48-56.

8.
NORDFORSK. (1987). Assessment of ship performance in a seaway.

9.
Pan, Z.Y., Vada, T., and Hassen, F.-C. W. (2013). A mesh dependency study for the mean drift forces by pressure integration. Proc. ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. OMAE 2013-10249.

10.
Park, J.C. (2014). Analysis on floating and towing stability for a large caisson. Pusan National University.(in Korean)

11.
Seok, J., Park, J.-C., Heo, J.-K., Kang, H.-Y., Bae, Y.-H., Kim, M.-H., and Kang, Y.-K. (2010). Stability evaluation during transportaion of caisson for breakwater. J. Ocean Engineering and Technology, 24(4), 13-22.(in Korean)

12.
SIMO. (2015). SIMO Theory manual ver. 4.4. Marintek.

13.
Wadam. (2014). Wadam User manual. ver. 9.1. Det Norske Veritas.