Desain Geometris Struktur Lepas Pantai Badan Ganda Menggunakan Sistem Ballast Pasif

Triasa, Hanif (2022) Desain Geometris Struktur Lepas Pantai Badan Ganda Menggunakan Sistem Ballast Pasif. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sistem tangki pemberat berjalan secara vertikal dari bagian atas badan bagian bawah ke bagian bawah badan bagian bawah pada platform lepas pantai dua badan, seperti struktur terapung. Air ballast ini akan keluar dari lubang-lubang yang ukurannya ditentukan dengan perhitungan. Dalam struktur badan ganda ini, sistem pemberat pasif akan mengandalkan fungsi air di dalam tubuh bagian bawah. Kapasitas tangki ballast akan sama dengan berat maksimum yang dapat ditambahkan ke struktur. Karena air di dalam struktur memiliki tekanan yang sama dengan air di luar struktur, air di tangki ballast dapat bocor. Struktur harus secara otomatis menyimpan draft pertama. Karena memiliki beberapa kelebihan maka akan digunakan sistem ballast pasif. Desain dan perhitungan teknik anjungan lepas pantai ditentukan dengan cermat untuk keselamatan, stabilitas, dan efisiensi. Tubuh bagian atas, tubuh bagian bawah, dan piston adalah tiga bagian tubuh utama dalam struktur ini. Dalam proyek ini, perhitungan manual dilakukan. Selain itu, software CATIA, PATRAN, dan HYPERMASH digunakan untuk pemodelan dan simulasi. Dalam proyek ini, evaluasi statis akan dihitung untuk menghitung pengaruh kondisi pembebanan tunak (atau statis) pada struktur dengan mengabaikan efek inersia dan redaman yang disebabkan oleh beban yang berubah terhadap waktu. Dalam acara tersebut juga dilakukan uji dan simulasi nyata di cekungan air.
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A ballast tank system runs vertically from the top of the lower body to the bottom of the lower body on a double-body offshore platform, such as a floating structure. This ballast water will emerge from the holes whose dimensions were determined by the calculation. In this double-body structure, the passive ballasting system will rely on the function of water inside the lower body. The ballast tank's capacity will be the same as the maximum weight that can be added to the structure. Because the water inside the structure has the same pressure as the water outside the structure, the water in the ballast tank can leak. The structure must automatically keep the first draft. Because it has some advantages, the passive ballasting system will be used. The offshore platform's design and engineering calculations are meticulously determined for safety, stability, and efficiency. The upper-part body, lower-part body, and piston are the three main body parts in this structure. In this project, manual calculations are carried out. Aside from that, CATIA, PATRAN, and HYPERMASH software are used for modeling and simulation. In this project, the static evaluation will be calculated to calculate the effect of steady (or static) loading conditions on a structure while ignoring inertia and damping effects caused by time varying loads. During the event, real tests and simulations in water basins are also carried out.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Struktur Lepas Pantai, Ledakan Pasif, Evaluasi Statis, Offshore Structre, Passive Blallast, Static Evaluation
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	10 Dec 2025 07:09
Last Modified:	10 Dec 2025 07:09
URI:	http://repository.its.ac.id/id/eprint/128908

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