This paper aims to present the effect of dynamic motion interaction between Round Shape FLNG and KVLCC2 to the RAO of the Round Shape FLNG. The research focuses on the effect of radiation wave generated from the motion of floating structures and the propagated radiation wave outward to nearby influenced structures. To conduct this study, the Round Shape FLNG and KVLCC2 were arranged in parallel head-sea arrangement to capture the strong radiation wave effect on the RAO of Round Shape FLNG. The proposed method was developed to estimate the RAO of Round Shape FLNG from to the radiation wave generated by the motion of nearby structures. Using this method, the wave force and hydrodynamic coefficient were calculated based on the diffraction potential theory and modified drag term of Morison. In addition, the dynamic motion interaction effect was estimated based on the Motion Dissipate Energy concept and Huygens Principle. To verify the proposed method, motion experiments in regular wave were conducted in selected conditions. Then, the results predicted by the proposed method were compared to the experiment results. The comparison showed that the RAO tendency of the Round Shape FLNG in 6 DOF estimated by the proposed method agrees with the results from the experimental test. Hence, this study concludes that the effect of the radiation wave generated by the motion of floating structure is an important factor in the study of motion interaction among the floating structures.
Departement of Aeronautic, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
This paper reviewed the material for the application of mooring line in offshore platform. Mooring line have several types of material which is chain, wire rope and synthetic fibre. Mostly, chain and wire rope used as a mooring line for shallow water depth. When oil and gas exploitation become deep, synthetic fibre is as an alternative for mooring line. This review focused on types of material and experimental by previous researcher for deep water mooring line. Finally, the conclusion and important summaries were presented according to the data collected.
Departement of Aeronautic, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
