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primary topic: 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
type: AcademicArticle
type: Article
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. © 2015 Elsevier Ltd.
date: 2016
volume: 54
is part of: Applied Ocean Research
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Elsevier Ltd
type: Organization

Applied Ocean Research
type: Collection
issn: 01411187

S. Parman
type: Person
given name: S.
family name: Parman

E. Yazid
type: Person
given name: E.
family name: Yazid

M.S. Liew
type: Person
given name: M.S.
family name: Liew

V.J. Kurian
type: Person
given name: V.J.
family name: Kurian

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