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TECHNICAL BRIEFS

Nonlinear Behavior of Articulated Tower in Random Sea

[+] Author and Article Information
A. K. Jain, T. K. Datta

Dept. of Civil Engineering, IIT Delhi, Hauz Khas, New Delhi 110016 India

J. Eng. Ind 113(2), 238-241 (May 01, 1991) (4 pages) doi:10.1115/1.2899685 History: Received November 01, 1988; Online April 08, 2008

Abstract

An iterative frequency domain method for determining the response of articulated towers to first order wave and current induced forces is presented. The application of the method is illustrated with the help of an idealized articulated tower. The iterative method duly considers the nonlinearities produced due to relative velocity squared drag force, large displacement effect, and variable added mass and buoyancy. The proposed method obtains the nonlinear random response in an efficient manner using fast fourier transform techniques. Using the proposed analysis a parametric study is conducted to investigate the response behavior of the tower to wave and current induced forces.

Copyright © 1991 by The American Society of Mechanical Engineers
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