Analisis Peningkatan Survival Damage Stability Dengan Penambahan Polyurethane Dan Marine Airbag Pada Ruangan Void Kapal Ro-Ro

Abdillah, Faizal Murtadho (2025) Analisis Peningkatan Survival Damage Stability Dengan Penambahan Polyurethane Dan Marine Airbag Pada Ruangan Void Kapal Ro-Ro. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kapal Ro-Ro (Roll-on/Roll-off) memiliki karakteristik khusus dengan ruang kosong (void space) yang cukup besar dan tersebar, sehingga rentan terhadap kehilangan stabilitas apabila terjadi kebocoran akibat kerusakan lambung. Untuk meningkatkan keselamatan pelayaran sesuai regulasi SOLAS, penelitian ini dilakukan dengan tujuan menganalisis peningkatan survival damage stability melalui penambahan material polyurethane dan marine airbag ke dalam void space. Proses perhitungan dilakukan menggunakan perangkat lunak dengan pendekatan probabilistic damage stability, yang meliputi pengaturan zone subdivision, penentuan nilai permeabilitas, serta perhitungan nilai Attained Subdivision Index (A) dan Required Subdivision Index (R) pada tiga kondisi pemuatan: deepest, partial, dan light loadcase. Kapal yang digunakan memiliki gross tonage sebesar 6345 GT. Hasil simulasi menunjukkan bahwa baik polyurethane maupun marine airbag dapat meningkatkan nilai indeks A di atas batas minimum R. Penambahan marine airbag dapat meningkatkan indeks A sebesar 9.37% yang semula 0.758 menjadi 0.85. Sedangkan pada penambahan polyurethane dapat meningkatkan indeks A sebesar 15.37% yang semula 0.758 menjadi 0.912. Kemudian pada penambahan kombinasi marine airbag dan polyurethane peningkatan terbesar sebanyak 17.95% yang semula 0.733 menjadi 0.9122. Hal ini berarti keduanya efektif dalam meningkatkan stabilitas kapal saat terjadi kerusakan. Polyurethane menghasilkan peningkatan indeks A yang lebih signifikan dibandingkan marine airbag, namun memiliki dampak berupa penambahan berat permanen dan keterbatasan akses ruang. Sebaliknya, marine airbag lebih ringan dan mudah dilepas, namun tidak seefektif polyurethane dalam menurunkan permeabilitas. Dari hasil analisis kuantitatif dan kualitatif, dapat disimpulkan bahwa pemilihan material pengisi void space harus mempertimbangkan aspek teknis, fungsionalitas ruang, dan kebutuhan operasional kapal.
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Ro-Ro (Roll-on/Roll-off) ships have special characteristics with large and scattered void spaces, making them prone to loss of stability in the event of leakage due to hull damage. To improve shipping safety in accordance with SOLAS regulations, this study was conducted with the aim of analyzing the improvement of survival damage stability through the addition of polyurethane material and marine airbags to the void space. The calculation process was performed using Maxsurf Stability software with a probabilistic damage stability approach, which included zone subdivision settings, permeability value determination, and calculation of the Attained Subdivision Index (A) and Required Subdivision Index (R) values under three loading conditions: deepest, partial, and light loadcase. The ship used has a gross tonnage of 6345 GT. The simulation results show that both polyurethane and marine airbags can increase the A index above the minimum R threshold. The addition of marine airbags can increase the A index by 9.37%, from 0.758 to 0.85. Meanwhile, the addition of polyurethane can increase the A index by 15.37%, from 0.758 to 0.912. Additionally, the combination of marine airbags and polyurethane yields the largest increase of 17.95%, from 0.733 to 0.9122. This means that both are effective in improving ship stability in the event of damage. Polyurethane produces a more significant increase in the A index than marine airbags, but has the disadvantage of adding permanent weight and limiting access to space. Conversely, marine airbags are lighter and easier to remove, but are not as effective as polyurethane in reducing permeability. Based on quantitative and qualitative analysis, it can be concluded that the selection of void space filling material must consider technical aspects, functional space requirements, and operational needs of the vessel.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Damage stability, marine airbag, probabilistic, polyurethane, void space.
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 > 36201-(S1) Undergraduate Thesis
Depositing User:	Faizal Murtadho Abdillah
Date Deposited:	07 Aug 2025 09:09
Last Modified:	07 Aug 2025 09:09
URI:	http://repository.its.ac.id/id/eprint/127969

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