TY  - JOUR
Y1  - 2016///
A1  - Yazid, E.
A1  - Liew, M.S.
A1  - Parman, S.
A1  - Kurian, V.J.
JF  - Applied Ocean Research
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947997349&doi=10.1016%2fj.apor.2015.11.001&partnerID=40&md5=9814100203056d741055879a2de0b658
VL  - 54
N2  - 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.
ID  - scholars8012
KW  - Frequency response; Optimization; Semisubmersibles
KW  -  Artificial bee colonies; Frequency domains; Frequency response functions; Identification process; Input-output data; Low-frequency response; Surge motions; Time-varying models
KW  -  Transfer functions
KW  -  experimental study; numerical model; offshore application; random wave; semisubmersible platform; structural response; transfer function; wave-structure interaction
KW  -  Apoidea
PB  - Elsevier Ltd
SN  - 01411187
EP  - 66
AV  - none
N1  - cited By 3
TI  - Identification of transfer functions from surge motion response of a semisubmersible platform using time-varying NARX model
SP  - 53
ER  -