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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan EPI International Journal of Engineering
alamsyah alamsyah
Naval Architecture Program, Kalimantan Institute of Technology
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering

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Collision Analysis Of A Self Propelled Oil Barge (SPOB) Using Finite Element Method Amalia Ika Wulandari; Rodlian Jamal Ikhwani; Suardi suardi suardi; Ratna Septati Yani; Andi Nadia Himaya; alamsyah alamsyah
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 19, No 2 (2022): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v19i2.45417

Abstract

Many ship accidents at sea cause oil spills that can pollute the sea especially ships carrying crude oil that experiences a collision, for example SPOB ship. SPOB is a ship that transports crude palm oil in Indonesia. Basically, the ship is collided with a jetty due to ocean waves hitting the hull as consequently the ship hull experienced a deformation. This research will be carried out on SPOB ships that experienced a collision with a jetty using two variations of the model, namely the jetty with fenders and without fenders with variation of speed. This study aims to determine the stress and deformation that occurs in the hull when experiencing a collision with a jetty. The method used in this study is a nonlinear method using Ansys. The results reveal that increasing speed of the ship is in line with stress and deformation values.
Preliminary Design and Energy Production of a Mobile Floating Structure (MFS) for Offshore Wind Turbines in Indonesian Waters Muhammad Uswah Pawara; Chris Jeremy Verian Sitorus; Hariyono Hariyono; Andi Mursid Nugraha Arifuddin; Alamsyah Alamsyah; Taufik Hidayat; Suardi Suardi; Abdul Mujib Syadzali; Faisal Mahmuddin
EPI International Journal of Engineering Vol 8 No 1 (2025): Volume 8 Number 1, Februari 2025
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022025.04

Abstract

The Mobile Floating Structure (MFS) is an innovative floating wind turbine concept that utilizes a catamaran hull design to enhance mobility and operational efficiency. Unlike stationary platforms, the MFS can relocate to areas with higher wind energy density, making it a promising solution for optimizing wind energy harvesting in offshore environments. This study focuses on the preliminary design and energy production of the MFS. Maxsurf is used to analyze hydrostatics and assess the hydrodynamic performance of the MFS hull after the dimension of the MFS is determine with key considerations including rotor diameter and the weight of the wind turbine. Furthermore, four wind turbines are installed in the MFS. Those aspect were integrated into the design process to ensure realistic operational adaptability. As result. the resulting dimensions of the MFS were determined utilizing Maxsurf. Moreover, different with the previous study that use satellite data, the present study employs reanalysis data to estimate the energy density and power production of MFS. the energy density map is also produced in the present study to determine the monthly location of the MFS. The energy production of the MFS with four turbines has been calculated, and the energy production map is also drawn. Finally, the energy production of the MFS in the chosen location has also been estimated. The energy production map can be utilized to develop MFS in other location.
Co-Authors Abdul Mujib Syadzali amalia ika wulandari Andi Mursid Nugraha Arifuddin Andi Nadia Himaya Chris Jeremy Verian Sitorus Faisal Mahmuddin Hariyono Hariyono M. Uswah Pawara Ratna Septati Yani Rodlian Jamal Ikhwani Suardi Suardi Suardi Suardi Taufik Hidayat