Analysis of the Effect of Fairlead Position on the Fatigue Damage Ratio of Catenary Type FPSO Aoka Mizu Mooring Line Structures
DOI:
https://doi.org/10.62012/zl.v5i1.31658Keywords:
Catenary, Fairlead, Fatigue Damage Ratio, FPSO, Kelelahan, TeganganAbstract
This research discusses the effect of fairlead position on the fatigue damage ratio of the Aoka Mizu Floating Production Storage and Offloading (FPSO) catenary structure during moored conditions. The FPSO is subject to the influence of ocean waves, ocean currents, and wind that can cause significant movement, jeopardize the catenary mooring system, and disrupt the production process. This study utilizes a numerical method based on the Boundary Element Method and uses environmental data from the Masela Block, which includes wave, wind, and current data. Three variations of fairlead position (0.3T, 0.5T, and 0.9T), each referring to the fairlead distance from the laden to the ship's keel, were tested with a rope length of 3100 m and a sea depth of 1000 m. The results showed that a fairlead position of 0.3T resulted in low stress and damage levels, while fairlead positions of 0.5T and 0.9T resulted in higher stress and damage. The fairlead position plays an important role in determining the stability and performance of the FPSO catenary structure. A fairlead position of 0.3T appears to be the most favorable option to reduce the risk of damage and stress to the FPSO Aoka Mizu catenary mooring system during moored conditions.Downloads
References
Assidiq. F. M, dkk. Fatigue Analysis of Catenary Mooring System due to Harsh Environment in Head Seas. Ocean Engineering, Faculty of Engineering, Hasanuddin University, Hlm. 30-38, 2018.
Weicheng Cui, Shixiao Fu, Zhiqiang Hu. Fatigue of Mooring Lines. Hlm. 527–533, 2022.
Rafliansyah Azhar Puteraa, Eko Budi Djatmikoa, dan Murdjitoa. Local Stress Analysis in the Chain Link of Mooring Line That Had Diameter Degradation. Department of Ocean Engineering, Institut Teknologi Sepuluh Nopember, Hlm. 1-9, 2021.
DNV OS E304. Offshore Mooring Steel Wire Ropes. Norway: Det Norske Veritas. Hlm. 26-27, 2015.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Nur Indah, Fuad Mahfud Assidiq
This work is licensed under a Creative Commons Attribution 4.0 International License.
Allow anyone to modify, improve, and make derivative works, even for commercial purposes, as long as they credit to you for the original work.