Analisis Kekuatan Memanjang Kapal Tongkang Akibat Konversi Menjadi Kapal Pengangkut Ikan Hidup

Effendy, Raja Muhamad Al Gifari (2026) Analisis Kekuatan Memanjang Kapal Tongkang Akibat Konversi Menjadi Kapal Pengangkut Ikan Hidup. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5018221094-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (30MB) | Request a copy

Abstract

Setiap kapal yang mengalami perubahan fungsi atau alih guna sehingga memerlukan modifikasi struktur harus tetap memenuhi persyaratan keselamatan dan kekuatan yang ditetapkan oleh badan klasifikasi. Konversi tongkang menjadi kapal pengangkut ikan hidup menyebabkan perubahan muatan, tata letak, serta penambahan dan penyesuaian beberapa komponen struktur baru. Sehingga perubahan tersebut berpotensi memengaruhi kekuatan memanjang kapal. Berdasarkan hasil analisis, momen lengkung maksimum setelah konversi diperoleh sebesar 3418 ton.m pada pembebanan I kondisi hogging, −6411 ton.m pada pembebanan II kondisi sagging, dan −15979 ton.m pada pembebanan III kondisi sagging. Hasil perhitungan tegangan secara analitis menunjukkan nilai tegangan maksimum sebesar 28.836 MPa, 54.086 MPa, dan 134.806 MPa pada pembebanan I, II, dan III, sedangkan hasil analisis numerik (Ansys) menghasilkan tegangan maksimum sebesar 34.999 MPa, 53.868 MPa, dan 152.960 MPa. Seluruh nilai tegangan yang diperoleh masih berada di bawah tegangan izin BKI sebesar 161.490 MPa, sehingga struktur kapal hasil konversi memenuhi persyaratan kekuatan memanjang.
===========================================================================================================================================
Every vessel that undergoes a charge of function or conversion requiring structural modifications must continue to comply with the safety and strength requirements established by classification societies. The conversion of a barge into a life fish carrier result in changes to cargo arrangements, layout, as well as the addition and modification of several structural components. These change may potentially affect the longitudinal strength of the vessel. Based on the analysis results, the maximum longitudinal bending moments after the conversion were 3418 ton·m under loading condition I in the hogging condition −6411 ton·m under loading condition II in the sagging condition, and −15979 ton·m under loading condition III in the sagging condition. The analytical calculations yielded maximum stresses of 28.836 MPa, 54.086 MPa, and 134.806 MPa for loading conditions I, II, and III, respectively, while the numerical analysis using Ansys produced maximum stresses of 34.999 MPa, 53.868 MPa, and 152.960 MPa. All calculated stress values were below the BKI allowable stress of 161.490 MPa, indicating that the converted vessel satisfies the longitudinal strength requirements.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	kapal konversi, kapal pengangkut ikan hidup, kekuatan memanjang, ship conversion, life fish carrier, longitudinal strength
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TA Engineering (General). Civil engineering (General) > TA660.F7 Structural frames. V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture)
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Raja Muhamad Al Gifari Effendy
Date Deposited:	03 Aug 2026 07:24
Last Modified:	03 Aug 2026 07:24
URI:	http://repository.its.ac.id/id/eprint/142261

Actions (login required)

View Item