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Indexed by:期刊论文

Date of Publication:2008-11-01

Journal:OCEAN ENGINEERING

Included Journals:SCIE、EI、Scopus

Volume:35

Issue:16

Page Number:1637-1646

ISSN No.:0029-8018

Key Words:Unidirectional irregular wave; Wave impact; Wave direction

Abstract:The experimental investigation of unidirectional random wave slamming on the three-dimensional structure in the splash zone is presented. The experiment is conducted in the marine environment channel in the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology. The test wave is unidirectional irregular wave. The experiments are carried Out With perpendicular random waves (beta = 0 degrees) and oblique random waves (beta = 15 degrees, 30 degrees, 45 degrees), the significant wave heights H(1/3) ranging from 7.5 to 20 cm with 2.5 cm increment, the peak wave periods T(p) ranging from 0.75 to 2.0 s with 0.25 s increment, and the clearance of the model with respect to the significant wave height s/H(1/3) ranging from 0.0 to 0.5 with 0.1 increment. The statistical analysis results of different test cases are presented. The statistical distribution characteristics of the perpendicular irregular wave impact pressures are compared with that of the oblique irregular wave on the underside of the structure. The effect of the wave direction beta on the wave impact forces on the underside of the structure is determined. The relation between the impact forces and the parameters such as the significant wave height, the relative structure width and the relative clearance of the structure is also discussed. (C) 2008 Elsevier Ltd. All rights reserved.