RESEARCH PAPERS: Offshore Mechanics and Arctic Engineering

Comparisons of Simulation Methods for Motions of a Moored Body in Waves

[+] Author and Article Information
M. Takagi

Hitachi Zosen Corporation, Osaka, Japan

K. Saito, S. Nakamura

Osaka University, Osaka, Japan

J. Energy Resour. Technol 107(1), 34-41 (Mar 01, 1985) (8 pages) doi:10.1115/1.3231160 History: Received June 28, 1983; Revised April 03, 1984; Online October 22, 2009


Based on the linear water wave theory, numerical simulations are carried out for motions in waves of a body moored by a nonlinear-type mooring system. Numerical results obtained by using the equation of motion described in the time domain with a convolution integral (C.I. method) are compared with those of the second-order linear differential equation with constant coefficients (C. C. method). These results are also compared with experimental values measured from the initial stage when the action of exciting forces starts and the validity of C.I. method is discussed.

Copyright © 1985 by ASME
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