Analisis Ultimate Strength Pada Struktur Jacket Tower Yoke Mooring System Akibat Marine Growth Berbasis Keandalan

Rouf, Dimas Muhamad (2025) Analisis Ultimate Strength Pada Struktur Jacket Tower Yoke Mooring System Akibat Marine Growth Berbasis Keandalan. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5020211021-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (12MB) | Request a copy

Abstract

Pertumbuhan marine growth pada struktur lepas pantai dapat memberikan dampak signifikan terhadap kekuatan struktural, terutama pada struktur platform seperti Tower Yoke Mooring System (TYMS). Marine growth meningkatkan beban hidrodinamis, yang berkontribusi pada peningkatan beban lingkungan, perubahan periode natural, serta peningkatan faktor amplifikasi dinamis. Penelitian ini bertujuan untuk menganalisis ultimate strength struktur TYMS akibat akumulasi marine growth menggunakan metode pushover analysis menggunakan software SACS dan pendekatan keandalan berbasis Monte Carlo Simulation dalam memastikan keandalan operasional platform. Dari hasil analisis, didapatkan UC member mengalami kenaikan pada tiap kenaikan beban marine growth dengan UC terbesar adalah di kondisi ketebalan marine growth data inspeksi kedua sebesar 1.34. Hasil RSR dan keandalan yang didapatkan mengalami penurunan pada setiap kondisi variasi marine growth. Didapatkan RSR terkecil nya sebesar 4.49 pada arah pembebanan 180° dengan indeks keandalan terkecil sebesar 2.96 pada kondisi ketebalan marine growth data inspeksi kedua.
===============================================================================================================================================
Marine growth on offshore structures can have a significant impact on structural strength, especially on platform structures such as the Tower Yoke Mooring System (TYMS). Marine growth increases hydrodynamic loads, which contribute to an increase in environmental loads, changes in natural period, and an increase in dynamic amplification factor. This study aims to analyze the ultimate strength of the TYMS structure due to accumulated marine growth using the pushover analysis method using SACS software and a Monte Carlo Simulation-based reliability approach to ensure the operational reliability of the platform. From the analysis, it was found that the member's UC increased with each increase in marine growth load with the largest UC in the second inspection data marine growth thickness condition of 1.34. The RSR and reliability results obtained decreased under each condition of marine growth variation. The smallest RSR is 4.49 in the 180° loading direction with the smallest reliability index of 2.96 in the condition of marine growth thickness of the second inspection data.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Marine Growth, Monte Carlo, Reserve Strength Ratio, Ultimate Strength, Marine Growth, Monte Carlo, Reserve Strength Ratio,Ultimate Strength.
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Dimas Muhamad Rouf
Date Deposited:	18 Jul 2025 02:23
Last Modified:	18 Jul 2025 02:23
URI:	http://repository.its.ac.id/id/eprint/119740

Actions (login required)

View Item