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Identification of transfer functions from surge motion response of a semisubmersible platform using time-varying NARX model

., Edwar Yazid, Mohd Shahir Liew, Setyamartana Parman, Velluruzhati (2016) Identification of transfer functions from surge motion response of a semisubmersible platform using time-varying NARX model. Identification of transfer functions from surge motion response of a semisubmersible platform using time-varying NARX model . (Submitted)

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Identification of transfer functions from surge motion response of a semisubmersible platform from model test data is presented in this paper. The identification is carried out by estimating the time-varying model coefficients of a time-varying NARX (TVNARX) model. The coefficients are estimated using proposed method, named artificial bee colony-based Kalman smoother (ABC-KS). System input–output data for identification process are wave height and surge motion from a scaled 1:100 model of a prototype semisubmersible. The applicability of proposed method is assessed numerically and experimentally under unidirectional long-crested random waves. The results show that the linear and quadratic frequency response functions as well as the wave and low frequency responses of a semisubmersible platform can be well identified either in time or frequency domains. The evolution of the nonlinear wave-structure interactions also can be revealed with respect to measured time duration.

Item Type:Article
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Academic Subject One:Academic Department - Civil Engineering - Water and environment - Water
Departments / MOR / COE:Departments > Civil Engineering
ID Code:12096
Deposited By: Ahmad Suhairi
Deposited On:06 Apr 2017 02:29
Last Modified:06 Apr 2017 02:29

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