Statistics of Combined Linear and Quadratic Springing Response of a TLP in Random Waves

[+] Author and Article Information
A. Naess

The Norwegian Institute of Technology, N-7034 Trondheim, Norway

J. Offshore Mech. Arct. Eng 116(3), 127-136 (Aug 01, 1994) (10 pages) doi:10.1115/1.2920141 History: Received September 13, 1993; Revised April 28, 1994; Online June 12, 2008


The paper presents the results of statistical analyses of combined first-order and second-order, sum-frequency response in heave, pitch, and roll of a TLP structure subjected to random, long-crested seas. The results are based on available numerically calculated data for the linear and quadratic transfer functions from the waves to the hydrodynamic loads on the TLP. It has also been assumed that the equations of motion in heave, pitch, and roll can be reasonably well approximated by a set of uncoupled, linear, and time-invariant equations.

Copyright © 1994 by The American Society of Mechanical Engineers
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