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RESEARCH PAPERS: Offshore Mechanics

Dynamic Analysis for Transportation of Barge-Jacket Assembly in Time-Frequency Domain

[+] Author and Article Information
F. Sun, C. Gao

Shanghai Offshore Engineering Corporation, Shanghai, China

J. Offshore Mech. Arct. Eng 110(2), 109-116 (May 01, 1988) (8 pages) doi:10.1115/1.3257038 History: Received April 08, 1985; Revised August 20, 1986; Online October 30, 2009

Abstract

A combined time-frequency domain method is proposed to analyze the stresses of barge-jacket assembly during transportation. Starting with the motion of analysis in frequency domain, the time history of waves and motions in random seas are simulated, then the stresses are determined in time domain. The stress autocorrelation functions are calculated and the stress spectra and statistical characteristics are obtained through Fourier transformation. A computer program has been developed. The effects of barge flexibility and the forces caused by the immersion of jacket have been discussed.

Copyright © 1988 by ASME
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