Evaluasi Safety Factor Dan Reliability Index Pada Struktur Midship Kapal Tanker 31400 DWT: Studi Perbandingan Rules BKI Dan IACS-CSR

Manurung, Togar Halomoan (2026) Evaluasi Safety Factor Dan Reliability Index Pada Struktur Midship Kapal Tanker 31400 DWT: Studi Perbandingan Rules BKI Dan IACS-CSR. Bachelor thesis, Institut Teknologi Kalimantan.

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Abstract

Struktur midship pada kapal tanker berperan penting dalam mempertahankan kekuatan memanjang lambung, namun pendekatan deterministik umumnya belum mempertimbangkan ketidakpastian akibat degradasi lingkungan, khususnya korosi. Penelitian ini bertujuan mengevaluasi dan membandingkan keandalan struktur midship kapal tanker 31.400 DWT yang dirancang berdasarkan Rules for Hull BKI Volume II dan Common Structural Rules (IACS-CSR) selama lima tahun operasi. Metode penelitian dilakukan untuk menganalisis deterministik dan probabilistik melalui pemodelan struktur, simulasi Finite Element Method (FEM) untuk memperoleh tegangan von Mises, serta evaluasi safety factor (SF). Analisis probabilistik dilakukan dengan memodelkan laju korosi sebagai variabel acak dan menggunakan simulasi Monte Carlo untuk memperoleh reliability index (β) dan probability of failure (Pf). Hasil analisis deterministik menunjukkan bahwa kedua regulasi memenuhi standar keselamatan minimum, dengan SF terendah 1.46 pada model BKI dan 1.86 pada model IACS-CSR. Hasil probabilistik menunjukkan penurunan reliability index seiring waktu akibat akumulasi korosi. Pada tahun kelima, model IACS-CSR menghasilkan β sebesar 4.14 dengan Pf sebesar 0.0017%, sedangkan model BKI menghasilkan β sebesar 2.58 dengan Pf 0.494%. Hasil ini menunjukkan bahwa IACS-CSR memberikan tingkat keandalan jangka panjang yang lebih tinggi dibandingkan BKI.

Item Type: Thesis (Bachelor)
Subjects: V Naval Science > V Naval Science (General)
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions: Jurusan Sains, Teknologi Pangan, dan Kemaritiman > Teknik Perkapalan
Depositing User: Togar Halomoan Manurung
Date Deposited: 16 Jul 2026 05:51
Last Modified: 16 Jul 2026 05:51
URI: http://repository.itk.ac.id/id/eprint/26657

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