Frequency Domain Analysis for Float-over Barge Subjected to Random Waves

Baharuddin, Nurul Husna and Kurian, V.J. and Hashim, Ahmad Mustafa (2011) Frequency Domain Analysis for Float-over Barge Subjected to Random Waves. In: National Postgraduate Conference 2011 (NPC 2011), 19-20 Sept 2011, Universiti Teknologi PETRONAS, Tronoh, Perak, MALAYSIA.

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Floatover barges are used for the installation of topsides
onto jacket platforms recently. In this study, a frequency domain
analysis was performed for a float-over barge subjected to
random waves. The excitation forces acting on the floating barge
were derived by Froude-Krylov approach. In this paper, seven
different sea states were specified for the analysis and the results
are presented in terms of Response Amplitude Operators
(RAOs). Three motion modes were analyzed namely surge,
heave and pitch. The results are presented and conclusions
arrived at. The resulting RAOs decrease with an increase in
draft while longer wave periods are associated with larger surge,
heave and pitch responses. The findings provide guidance for the
conceptual design and development of such structures.
Keywords - float-over barge; frequency domain analysis; random
waves; dynamic analysis; Froude-Krylov approach.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TA Engineering (General). Civil engineering (General)
Departments / MOR / COE: Research Institutes > Deep Water Technology
Depositing User: Prof Dr Kurian V John
Date Deposited: 05 Dec 2011 03:01
Last Modified: 19 Jan 2017 08:22

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