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Dynamic Responses of Floating Production Storage and Offloading (FPSO) Vessel Subjected to Random Waves

A/P PACHIYAPPAN, NISHANTI (2015) Dynamic Responses of Floating Production Storage and Offloading (FPSO) Vessel Subjected to Random Waves. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Floating, Production, Storage and Offloading (FPSO) unit is ship shaped vessel which is currently used for the production and storage of hydrocarbon in deep water region. FPSO is more efficient and economical as compared to fixed structure such as topside and jacket. This is because the installation of pipeline for fixed structure is expensive and therefore FPSO is more preferred than fixed structure. FPSO is a floating structure which allows six degrees of motion in surge, heave, sway, pitch, yaw and roll. It is crucial to possess a study on dynamic responses of FPSO due to environmental load for excellent station-keeping characteristics. As wave cause the dominant environmental loads, the evaluation of responses due to random waves is necessary for the analysis and preliminary design of FPSOs. The model testing of the FPSO model is performed in UTP Offshore Laboratory to investigate the three degrees of freedom under action of waves at Malaysian deep water. The same is validated using finite element analysis of moored FPSO using frequency domain method. The metocean data is obtained from the Petronas Technical Standards (PTS) for operating condition which consist of wave height and peak period. The uncoupled analysis of the FPSO is performed using SESAM suites of programs. Diffraction potential theory is used to calculate the dynamic responses of FPSO. Hydrodynamic analysis is conducted to determine the motion of FPSO in surge, heave and pitch motion in random waves. Wave spectrum is generated using Jonswap spectrum. The motion responses of the ship is studied by using transfer functions or Response Amplitude Operator (RAO) and both numerical and experimental results were compared. Since there are no study has been reported on dynamic responses of FPSO in Malaysian waters by using SESAM, therefore this study is very useful for the future design of FPSO and also to ensure the excellent station keeping characteristics in deep water.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Environmental - Wastewater treatment
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Nov 2015 08:47
Last Modified: 25 Jan 2017 09:35
URI: http://utpedia.utp.edu.my/id/eprint/16052

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