Second-order long period wave forces on an offshore structure in shallow water by the method of Green`s theorem

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:404214

Yoshida, Hisafumi ^[1]; Saito, Kimio ^[2]

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1. Hitachi Zosen Corp., Osaka (Japan)
2. Osaka Univ. (Japan)

Second-order long period wave forces on a two-dimensional fixed body in bichromatic waves are investigated. At first, derivation of a calculation formula to compute second-order wave forces on a fixed body in a wave tank of shallow water depth are shown. The formula is derived from Green`s second identity and the second-order wave forces can be calculated using only first-order potential, without solving the second-order diffraction problem. Then computed results are compared with a solution by integral equation method and experimental data, and it is shown that the second-order wave forces can be calculated easily and with relatively good accuracy.

• OSTI ID: 404214
• Report Number(s): CONF-940409-; ISBN 1-880653-10-9; TRN: IM9652%%74
• Resource Relation: Conference: 4. international conference on offshore and polar engineering, Osaka (Japan), 10-15 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of The proceedings of the fourth (1994) international offshore and polar engineering conference. Volume 3; Chung, J.S. [ed.] [Colorado School of Mines, Golden, CO (United States)]; Maeda, Hisaaki [ed.] [Univ. of Tokyo (Japan)]; Naito, Shigeru [ed.] [Osaka Univ. (Japan)]; Ikeda, Yoshiho [ed.] [Univ. of Osaka Prefecture, Osaka (Japan)]; PB: 606 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
OFFSHORE PLATFORMS
WAVE FORCES
WATER WAVES
MATHEMATICAL MODELS
CALCULATION METHODS
FLUID-STRUCTURE INTERACTIONS
RESPONSE FUNCTIONS
DYNAMIC LOADS