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All Journal Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan WAVE: Jurnal Ilmiah Teknologi Maritim
Alamsyah Alamsyah
Program Studi Teknik Perkapalan Institut Teknologi Kalimantan
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Engineering Mechanical Engineering Transportation

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Analisis Stabilitas Decommissioning Barge 400 Feet Ketika Lifting Operation Alan Dicky Swans Saragih; Destyariani Liana Putri; Alamsyah Alamsyah; Anggoronadhi Dianiswara
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 4, Nomor 3, Edisi November 2023
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v4i3.27699

Abstract

ecommissioning is the final stage of the life of a platform located offshore in order to support the decommissioning activities that will be carried out, a modified barge is designed to become a tool that can assist the dismantling of offshore platforms. The modification made is by adding an appending frame whose function is to lift the platform that is ready to be dismantled. Of course, not only that is a consideration in the modification of the decommissioning barge but also the planning of the stowage plan design for the modified barge model so that the components and cargo on the barge can be placed in the appropriate position so that the designed barge has a capacity that matches the purpose of the barge. Then when you have made a stowage plan for the decommissioning barge, the next step will be modeling the barge starting from making the hull to the load and also the tank. When all these parts have been made, validation is carried out to compare the value of the model with that in the stability booklet, if so, the next step is to create a code using the moses executive. Analysis when lifting that has been simulated in this study getting a value with the highest CoG point variation, the farthest and with a draft variation of 4.5m, 5.5m, 5.8m, it is found that the stability value meets the DNVGL-ST-N001 criteria in the GM (metacenter height) value, intact range, area ratio.
ANALISIS TEGANGAN REGANGAN PADA PELAT DECK DAN BOTTOM KAPAL FERRY RO-RO MENGGUNAKAN FINITE ELEMENT METHOD Amalia Ika Wulandari; Alamsyah Alamsyah; Cindy Lionita Agusty
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 15 No. 1 (2021)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tegangan dan regangan merupakan suatu hal yang krusial pada kekuatan kapal, hal ini menjadi sangat penting untuk mengetahui beban maksimal yang bisa diterima oleh kapal karena antara kedua hal tersebut saling berkaitan, alasan keselematan juga menjadi satu hal mengapa tegangan regangan patut untuk diketahui. Pada penelitian ini bertujuan untuk menganalisis tegangan regangan maksimum kapal dengan variasi ketebalan pelat 100%, 90%, 80% dan 60%, menggunakan metode yakni Finite Element Method. Hasil penelitian didapatkan nilai tegangan maximum pada ketebalan 100% yaitu 312.539 N/mm2 dengan regangan maximum yang dihasilkan yaitu 1,48 x 10-3. , untuk ketebalan 90% dihasilkan tegangan maximum sebesar 353.47 N/mm2 dan regangan maximum yang dihasilkan yaitu 1,68 x 10-3. , keteblan 80% tegangan maximum yang dihasilkan sebesar 617.78 N/mm2 dengan regangan maximum yang dihasilkan yaitu 0,29 x 10-3., ketebalan 60% tegangan maximum yang dikeluarkan sebesar 820.03 N/mm2 dengan regangan maximum yang dikeluarkan yaitu 0.39 x 10-3 . Untuk pelat 100% dan 90% tidak melebihi tegangan izin, sedangkan untuk pelat 80% dan 60% melebihi tegangan izin.
Co-Authors Alan Dicky Swans Saragih Amalia Ika Wulandari Anggoronadhi Dianiswara Cindy Lionita Agusty Destyariani Liana Putri