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All Journal WAVE: Jurnal Ilmiah Teknologi Maritim
Kharis Abdullah
Department of Shipbuilding Engineering, Politeknik Perkapalan Negeri Surabaya
Control & Systems Engineering Energy Engineering Mechanical Engineering Transportation

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Construction Strength Analysis of a 250-Tonne Capacity Deck Crane Barge with Longitudinal Variation Kharis Abdullah; Sumardiono; M. Lukman Arif; Agung Prasetya Utomo; Denny Oktavina Radianto
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 17 No. 2 (2023)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2023.2817

Abstract

A deck crane barge is a barge with a crane system attached to the deck for loading, unloading, and lifting various materials or supporting equipment. In marine building construction, strength assessment must be carried out to ensure that the built design will not fail. The finite element method is one method to perform strength assessment of ship construction faster and simplify calculating. This study assessed the strength of crane barge decks with three variations of longitudinal size with reduced longitudinal size on the web and face plate with the element method. From the calculation results, Model A or the existing construction, has the smallest Von Mises Stress, while Model C, with reduced web and face plate size to L 80 x 80 x 8 mm, has the largest Von Mises Stress. The reduction in the size of the faceplate and web plate in the longitudinal section reduced the strength of the ship construction with higher stress values. However, all three tested Models had Von Mises Stresses below the maximum permissible stress required by BKI.
Strength Analysis of 230 Feet Coal Barge Deck Using Finite Element Method Achmad Hanif Prastiawan; Kharis Abdullah
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 19 No. 2 (2025)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2025.11983

Abstract

Coal barges are one of the vital transportation in the coal mining industry to transport large loads by sea or river. The durability of the deck structure is a crucial aspect in ensuring operational safety and efficiency. This study will analyze the strength of a 230-foot coal barge deck using the Finite Element Method (FEM) with different plate thickness variations. The analysis was carried out by modeling the deck structure in Autodesk Autocad software and simulating it in Ansys Workbench software. The purpose of this study was to evaluate the distribution of maximum stress and safety factor at maximum loading conditions. From the analysis results, it was found that the deck cargo model A with a plate thickness of 10 mm had a maximum stress of 175.65 Mpa and a safety factor value of 1.22. While the deck cargo model B with a plate thickness according to the Ultrasonic Test results had a maximum stress of 181.71 Mpa and a safety factor value of 1.18. So the results of the maximum stress and safety factor values ​​of the two models still meet the permissible stress of the material and the safety factor value with the BKI standard.
Analisis Kekuatan Struktur Kapal Tugboat Akibat Modifikasi Deck House Hendrian Syah; Kharis Abdullah; Alwi Sina Khaqiqi
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 19 No. 2 (2025)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2025.12853

Abstract

Modifikasi pada struktur deck house kapal tugboat dilakukan untuk memperbaiki akses tangga menuju ruang galley yang terlalu sempit. Namun, perubahan ini dapat memengaruhi kekuatan struktur kapal tugboat, khususnya pada frame 42 hingga 52. Oleh karena itu, dilakukan analisis kekuatan struktur menggunakan metode elemen hingga (Finite Element Method) berbasis software ANSYS. Pemodelan dilakukan dalam dua kondisi, yaitu sebelum dan sesudah modifikasi, dengan pembebanan utama berupa gaya towing sebesar 86268.28 N. Hasil simulasi menunjukkan bahwa tegangan maksimum meningkat dari 110.96 MPa menjadi 119.94 MPa, dan deformasi maksimum meningkat dari 0.37071 mm menjadi 0.48341 mm. Meskipun demikian, nilai tegangan tersebut masih berada di bawah tegangan ijin material sebesar 211.5 MPa, dan nilai safety factor sebesar 1.8 menunjukkan bahwa struktur tetap aman. Dengan demikian, dapat disimpulkan bahwa modifikasi deck house tidak menimbulkan risiko kegagalan struktur dan tetap memenuhi standar keselamatan sesuai aturan IRS (Indian Register of Shipping).
Co-Authors Achmad Hanif Prastiawan Agung Prasetya Utomo Alwi Sina Khaqiqi Denny Oktavina Radianto Hendrian Syah M. Lukman Arif Sumardiono