Page 260 - Practical Design Ships and Floating Structures

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5 CONCLUSIONS

Hydrodynamic forces of radiation and diffraction problems are estimated by using the source-dipole
method and the structural bending rigidities are determined by the finite element method. 'The
predictions of deck wetness and slamming of VLFS in time and frequency domain have been made.
VLFS is subdivided into 74x9 flat shell elements in the frequency domain. But it is subdivided into
59x7 flat shell elements in the time domain because of taking pretty long time for the analysis of
hydroelasic motion. It makes is the difference between the results in the time domain and it in the
frequency domain.
References

Yago. K. and Endo, H. (1996). On the Hydroelastic Response of Box-Shaped Floating Structure with
Shallow Draft (Tank Test with Large Scale Model). Journal of The Sociefy of Nuval Architects of
Japan 180,341-352
Endo. H. (1999). The Behavior of an Airplane Taking Off from Landing on a VLFS in Rough Sea
~
Condition.' VLFS'99, Honolulu, 2 12-2 18
Lee,H.Y. and Shin, H. (2000). Hydroelastic Responses of a Very Large Floating Structure in Time
Domain. Journal of Ocean Engineering and Technology, KCORE 14:3,29-34 (in Korean).
Ohmatsu, S. (1998). Numerical Calculation of Hydroelastic Behavior of VLFS in Time Domain.
Proceeding of the Second international Conference on Hydroelasticity in Marine Technology, OMAE,
89-97
Faltinsen, O.M. and Michelson, F.C. (1974). Motion of Large Structures in Waves at Zero Froude
Number. Int. Symp, the Dynamics of Marine Vehicles and Structures in Waves.
Takaishi, Y., Masuda, K. and Minemura, K. (1 999). Relative Wave Motion and Shipping Water on
Deck of Mega-Float Structure. VLFS'99, Honolulu, 446-778