Studi Pengembangan Algoritma Direct Damage Stability Berbasis Pengolahan Data Geometri 3D pada Onboard Loading Instrument

Andinuari, Fajar (2024) Studi Pengembangan Algoritma Direct Damage Stability Berbasis Pengolahan Data Geometri 3D pada Onboard Loading Instrument. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dunia maritim mengalami perkembangan yang sangat signifikan seperti pada proses perencanaan muatan yaitu adanya sistem yang disebut loading instrument yang diatur oleh beberapa regulasi baik dari Klasifikasi maupun IACS. Perhitungan damage stability juga sangat penting untuk instrumen pemuatan. Saat ini di Indonesia belum ada algoritma yang dikenal untuk menghitung damage stability secara langsung dari model 3D. Dan juga masih belum ada instrumen pemuatan di Indonesia yang mengaplikasikan algoritma tersebut. Oleh karena itu, penelitian ini bertujuan untuk mengembangkan algoritma perhitungan direct damage stability untuk pengembangan instrumen pemuatan di Indonesia. Direct damage stability menggunakan metode lost buoyancy yang dihitung dari model geometri 3D secara langsung. Proses perhitungan dimulai dengan membagi geometri kapal dan kompartemen dengan station yang diinginkan. Secara umum, integrasi numerik yang digunakan dalam proses perhitungan adalah metode Simpson. Kemudian metode yang dipakai ada 2 (dua) yaitu iterasi Newton dan asumsi tangki bocor dianggap hilang. Kedua metode tersebut digunakan untuk mencari kondisi kesetimbangan dengan syarat-syarat yang telah ditentukan. Terakhir, hasil perhitungan akan dibandingkan dengan kasus LR Rules dan IACS Rules UR L5 sebagai bentuk validasi. Algoritma perhitungan tersebut nantinya dapat diaplikasikan pada komputer perangkat lunak pemuatan onboard yang dibutuhkan kapal untuk proses pemuatan dengan aplikasi damage.
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The maritime world experienced a very significant development such as the process of cargo planning is the existence of a system called loading instrument which is regulated by several regulations from both Classification and IACS. Damage stability calculation is also very important for loading instruments. Currently in Indonesia, there is no known algorithm to calculate direct damage stability from 3D models. And also there is still no loading instrument in Indonesia that applies the algorithm. Therefore, this research aims to develop a direct damage stability calculation algorithm for the development of loading instruments in Indonesia. Direct damage stability uses the lost buoyancy method which is calculated from 3D geometry model directly. The calculation process starts by dividing the ship geometry and compartment with the desired station. In general, the numerical integration used in the calculation process is the Simpson method. Then there are 2 (two) methods used, namely Newton iteration and the assumption that the flooded tank is considered missing. Both methods are used to find equilibrium conditions with predetermined conditions. Finally, the calculation results will be compared with the cases of LR Rules and IACS Rules UR L5 as a form of validation. The calculation algorithm can later be applied to the onboard loading software computer needed by the ship for the loading process with damage applications.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	peraturan IACS UR L5, loading instrument, perhitungan intact stability, perhitungan direct damage stability, metode iterasi Newton-Raphson
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM761 Stability of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36101-(S2) Master Thesis
Depositing User:	Fajar Andinuari
Date Deposited:	12 Aug 2024 02:22
Last Modified:	27 Aug 2024 07:40
URI:	http://repository.its.ac.id/id/eprint/113971

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