RESEARCH PAPERS: Offshore Mechanics/Ocean Engineering

The Motions of Adjacent Floating Structures in Oblique Waves

[+] Author and Article Information
N. Kodan

Tsu Research Laboratories, Technical Research Center, Nippon Kokan K. K., Japan

J. Energy Resour. Technol 106(2), 199-205 (Jun 01, 1984) (7 pages) doi:10.1115/1.3231038 History: Received June 30, 1983; Revised September 30, 1983; Online October 22, 2009


This paper describes the theory on the effects of hydrodynamic interaction between two parallel slender structures in oblique waves. The method is based on the two-dimensional diffraction theory including the interaction effect. According to Ohkusu’s theory, the sectional interaction effects on the added mass, damping coefficient and wave exciting force are evaluated by analyzing incoming waves generated by the oscillatory motion of corresponding sections. Numerical results of the wave exciting force and moment and motions for the case of a combination of a ship and a rectangular barge are presented and compared with the results from model experiments. The comparison shows good agreement. Finally, some attention is given to the relationship between the arrangement of the two structures and responses in irregular waves.

Copyright © 1984 by ASME
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