caa a22 4500 475737229 CHVBK 20180406123450.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/s007730070001 doi (NATIONALLICENCE)springer-10.1007/s007730070001 Ohmatsu Shigeo Ocean Engineering Division, Ship Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan, JP aut Numerical calculation method for the hydroelastic response of a pontoon-type very large floating structure close to a breakwater [Elektronische Daten] [Shigeo Ohmatsu] This paper presents an effective scheme for calculating the wave-induced hydroelastic response of a pontoon-type very large floating structure (VLFS) when it is near a breakwater. The basic numerical calculation method is the one previously developed by the same author for a VLFS in the open sea (no breakwater), which is expanded to include the effect of the hydrodynamic mutual interaction between the breakwater and the floating structure. The efficiency and accuracy of the proposed method are validated through comparisons with other numerical results and with existing experimental results. After that confirmation, various numerical calculations were conducted, paying special attention to the resonance phenomena which will occur depending on the relation between the wavelength and the clearance between the breakwater and the floating structure. The irregular frequency phenomenon which appears in the calculation of the fluid dynamic problem is discussed in the appendices, including a method for its elimination. The Society of Naval Architects of Japan, 2000 Key words Very large floating structure nationallicence VLFS nationallicence Hydroelasticity nationallicence Eigenfunction expansion-matching method nationallicence Mode-expansion method nationallicence Breakwater nationallicence Irregular frequencies nationallicence https://doi.org/10.1007/s007730070001 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s007730070001 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Ohmatsu Shigeo Ocean Engineering Division, Ship Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer