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All Journal Turbo : Jurnal Program Studi Teknik Mesin EPI International Journal of Engineering International Journal of Marine Engineering Innovation and Research Journal of Marine-Earth Science and Technology Jurnal Pengabdian Masyarakat Formosa (JPMF) International Journal of Metacentre PIKAT Jurnal Riset & Teknologi Terapan Kemaritiman Indonesian Journal of Maritime Technology or abbreviated (ISMATECH)
Arifuddin, Andi Mursid Nugraha
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Numerical Evaluation of Transversal Strength of Traditional Fishing Vessel in Penajam Paser Utara, East Kalimantan, Indonesia Pawara, Muhammad Uswah; Alamsyah; Arifuddin, Andi Mursid Nugraha; Tobing, Andreyano Yosefan Lumban; Hidayat, Taufik; Nurcholik, Samsu Dlukha; Syadzali, Abdul Mujib
Indonesian Journal of Maritime Technology Vol. 1 No. 2 (2023): Volume 1 Issue 2, December 2023
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v1i2.1070

Abstract

Challenges in procuring wood as the primary material for ships have led to a decline in overall quality. Meeting the demands of shipbuilding often involves neglecting consideration for the quality and characteristics of construction materials. Additionally, the shipbuilding process commonly overlooks technical and operational aspects associated with construction specifications. Ship damages frequently result from the selection of wood types, sizes, and ages that do not meet construction criteria or fall below the standards for achieving optimal construction. Many ship constructions are identified that fail to meet the requirements for ensuring the safety and security of the crew, ship, and cargo during operations. This research aims to numerically assess the transverse strength of fishing vessels operating in Penajam Paser Utara using Ansys software. Survey results indicate an average size of fishing boats in this area as 10 – 20  meters in length. 2.6 - 3.5 meters in width, and 1.6 – 2.5 meters in height. The stress analysis results from Ansys Workbench were recorded at 2.3402 MPa
Determination of Electrical Power for Lighting Distribution Using LED Lights on KM. Tuna Kita Suardi, Suardi; Sitorus, Chris Jeremy Verian; Kustiwansa, Harlian; Arifuddin, Andi Mursid Nugraha; Pawara, Muhammad Uswah; Hariyono, Hariyono; Alamsyah, Alamsyah; Cahyani, Alviana Eka; Mubarak, Azhar Aras; Lumenteri, Fido Fortunatus
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1287

Abstract

Fishing vessels are specialized ships designed to support commercial fishing operations by integrating various structural and functional elements such as hull dimensions, deck layout, load capacity, crew accommodations, propulsion systems, and supporting equipment. One critical yet often overlooked component of such vessels is the lighting system, which plays a key role not only in ensuring operational safety and visibility but also in enhancing fishing effectiveness, particularly during night operations. Currently, many fishing vessels still rely on conventional fluorescent lighting, which is less energy-efficient and has a shorter operational life compared to modern alternatives such as LED technology. This study addresses the inadequacy of current lighting installations on fishing vessels by proposing a redesigned electrical installation system utilizing LED lamps. The objective is to develop an efficient and functionally optimized lighting plan that reduces energy consumption and operational costs while improving onboard visibility. Additionally, LED lights can serve dual purposes on fishing vessels—not only for general illumination but also as fish-attracting lights, which may contribute to increased catch yields. The research employs the Zonal Cavity Method (also known as the Lumen Method) as the primary analytical approach. This method enables the calculation of illumination levels by considering inter-surface reflectance and dividing each interior space into three distinct zones: the High Ceiling Cavity (HCC), High Room Cavity (HRC), and High Floor Cavity (HFC). Illumination levels are then determined according to established lighting standards for each functional area within the vessel. The results of the analysis demonstrate that LED-based lighting systems significantly outperform fluorescent systems in terms of energy efficiency, uniformity of light distribution, and alignment with lighting standards. Furthermore, the proposed installation plan offers long-term operational benefits, including reduced maintenance requirements and lower power consumption. The findings support the broader adoption of LED lighting in small-scale fishing vessels and suggest further research into integrating solar-based energy systems to enhance sustainability and self-sufficiency in future vessel designs.
Effect of Lifting Lug Hole Diameter Size on Strength Performance in Ship Block Lifting Process: English Arifuddin, Andi Mursid Nugraha; Nizam, Syahrul; Pawara, Muhammad Uswah; Sitorus, Chris Jeremy Verian; Rachmianty, Andi; Ningrat, Andi; Baso, Suandar
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.8481345

Abstract

The safety of the ship block lifting process is always a serious concern during the assembly of ship blocks. The block/structure and equipment must not be damaged during the lifting process. This study aims to determine the structural response values that occur with various hole diameter sizes of the lifting lug during the ship block lifting process. The object of this research is a ship block from the new construction of the Ferry Ro-Ro 1500 GT. The method used is numerical simulation based on finite element method (FEM) software. The simulation is conducted to obtain the stress and deformation values for each size of the lifting lug. The selected ship block load is the largest ship block load, which is 52,380 tons. The number of lifting lugs used in the simulation is 5, with varying diameters of 53, 58, 63, 68, and 73 cm. Based on the simulation results, the diameter of 63 mm gets the minimum normal and shear stress figures. While the minimum von misses stress figure is shown by the variation of the diameter of 73 mm. While the smallest deformation figure is shown by the variation of the diameter of 53 mm. In general, all variations of lifting lug holes can still be applied with the note that the weight of the load must be considered.
MATERIAL RELIABILITY STUDY OF HIGH-SPEED SMALL CRAFT UNDER WAVE LOAD Wulandari, Amalia Ika; A, Alamsyah; S, Suardi; Setiawan, Wira; Pawara, Muhammad Uswah; Arifuddin, Andi Mursid Nugraha; Syahab, Husein
Journal of Marine-Earth Science and Technology Vol. 5 No. 3 (2024): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v5i3.3921

Abstract

This study focuses on analyzing the structural characteristics of a small craft constructed using aluminum alloy compared with sandwich material structure. High speed vessels are designed to address key performance challenges such as vessel motion, engine efficiency, fuel consumption, and cargo capacity. However, to endure extreme wave induced loads, enhancement of vessel’s the structural strength is essential, especially in critical areas like the midship section. Analytical models and probabilistic methods are employed to predict structural performance under both constant and random wave loading conditions. Aluminum alloys are commonly chosen for fast boat construction due to their high strength to weight ratio and corrosion resistance. To evaluate structural behavior, simulations are carried out under varying wave heights and directions, providing insight into how the vessel performs in challenging marine environments. Load analysis is conducted using diffraction theory and the JONSWAP spectrum equation to determine the maximum bending moments experienced by the hull. The results show that both aluminum and sandwich structures exhibit similar reliability thresholds under wave-induced loading, but the sandwich structure consistently performs slightly better, with approximately 0.10% higher reliability. This suggests that sandwich materials offer improved structural integrity, making them the more suitable choice for high-speed small craft operating in wave conditions up to 2 meters. This analysis contributes to a deeper understanding of the reliability and performance of these materials, offering valuable guidance for designing and constructing high Small Crafts that perform efficiently and safely in demanding maritime operations.
PELATIHAN PEMBUATAN PERAHU BERLAMBUNG KATAMARAN MENGGUNAKAN MATERIAL FIBERGLASS Arifuddin, Andi Mursid Nugraha; Leksono, Vridayani Anggi; Wahab, Muhammad Fajrin; Mukti Ardhansyah; Luthfi Abdurrahman; Firman Syach Frederik Allfadilah Medellu; Andre Franklin Bakara; Pria Adi Pangestu; Aldo Pangestu; Nada
PIKAT Jurnal Pengabdian Kepada Masyarakat ITK Vol. 4 No. 2 (2023): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/pikat.v4i2.971

Abstract

Saat ini, Perahu berlambung drum masih digunakan sebagai wahana layanan wisata air yang disediakan oleh KTH Wanatirta untuk memenuhi permintaan wisata danau di Karang Joang, Balikpapan. Wahana dibuat dengan teknologi sederhada dengan menerapkan prinsip pembuatan rakit, menghubungkan beberapa drum untuk mempertahankan daya apung wahana. Selanjutnya wahana tersebut diberi mesin penggerak sehingga menyerupai perahu wisata. Pembuatan perahu jenis ini dilakukan oleh anggota KTH karena para anggota mengakui tidak memiliki keterampilan membuat perahu sederhana bermaterial lain seperti fiberglass. Olehnya itu, ditawarkan sebuah solusi kegiatan berupa pelatihan pembuatan perahu dengan lambung katamaran berbahan fiberglass. Pelatihan dilaksanakan dengan menggunakan metode yaitu metode cerama untuk memberikan materi teori Pembangunan perahu berbahan fiberglass dan metode praktek yaitu melakukan unjuk kerja hasil pembelajaran pada metode sebelumnya. Dari Pelaksanaan kegiatan dihasilkan produk hasil praktek anggota mitra berupa cetakan lambung katamaran non permanen dan lambung perahu katamaran berbahan fiberglass.
Computer-Based Simulation on LCB Positions in Indonesian Traditional Wooden Ship Abdurrahman, Luthfi Abdurrahman; Arifuddin, Andi Mursid Nugraha; Ardianti, Andi Ardianti; Hariyono, Hariyono; Lolo, Musa; Irawan, Reynadi Firzy; Pengestu, Pria Adi; Prayoga, Dimas; Pangestu, Aldo; Pawara, Muhammad Uswah
International Journal of Marine Engineering Innovation and Research Vol 9, No 4 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.22054

Abstract

A Traditionl Wooden ship in North Penajam Paser is built without initial calculation to predict the resistance that will occur based on the shape of the hull. The ship is built solely based on the main dimensions and the number of engines to be installed, without considering the optimal hull shape. The hull shape is an important component in supporting the hydrostatic performance of a ship. Planning the hull's shape affect the ship's resistance value and ultimately impacts the ship's engine power requirements. The purpose of this research is to obtain the resistance value of the existing ship and determine the hull shape with a lower resistance value through computer-based simulations. The computer simulation approach based Holtrop method is used to determine the position of the LCB point based on the hull shape. Then, it examine the effect of the LCB position on the ship’s resistance of the hull shape. The hull shape simulation was conducted without changing the ship’s main dimensions. The simulation result show that the position of the LCB on the existing hull shape is 8.514 m from the AP, with a ship resistance value is 7.4 kN. Meanwhile, the optimum hull shape was found when the location of the LCB point was moved 0.1 m forward from its initial position (model 4). The resistance value in Model 4 decreased by 3.8% compared to the initial resistance value. In addition to model 4, models 2 and 3 also reduced the ship's resistance value, with changes of 0.9% and 2.1%, respectively. Furthermore, this optimal hull shape can be developed in the next analysis stage, such as ship structure planning and other design analyses.
Enhancing Ship Seaworthiness Supervision: A Study at KSOP Class II Kendari Rachmianty, Andi; Yusri, Muhammad; Ningrat, Andi; Arifuddin, Andi Mursid Nugraha; Usman, Arif Fudddin; Rusnaedi
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481363

Abstract

Ship accidents often occur due to ships being unseaworthy to sail. The harbor master plays an important role in supervising the seaworthiness of ships and port activities. However, ship accidents still often occur due to the unseaworthiness of ships to sail. This study examines the level of performance of the harbor master at KSOP Class II Kendari. The method used is the Costumer Satisfaction Index (CSI). The questionnaire was given to the sample which was calculated using the Slovin calculation. The results of the questionnaire have gone through validity and reliability tests and show that the results obtained are valid and reliable. The percentage value of CSI obtained reached 84.95%. This figure indicates that customers are very satisfied with the performance of KSOP Class II Kendari. This shows that KSOP Class II Kendari has succeeded in meeting customer expectations and needs well.
Co-Authors A, Alamsyah Abdul Mujib Syadzali Abdurrahman, Luthfi Abdurrahman Abiyyu Harly Saputra Ahmad Razzan Alamsyah Alamsyah - Aldo Pangestu Andi Trimulyono Andre Franklin Bakara Ardianti, Andi Ardianti Awali , Jatmoko Bancin, Sutomo Baratau, Irentya Anugra Burliyanto, Decky Cahyani, Alviana Eka Dwiyanti, Diva Syahirah Eko Agung Syaputra Elfin Zulmi Azhar Faisal Mahmuddin Fiesta Olivia Firman Syach Frederik Allfadilah Medellu Fitri, Ade Gom Gom Mulia Yehezkiel Tambunan Hariyono, Hariyono Hijriah Hijriah Ikhwani, Rodlian Jamal Indah Sari, Fitria Irawan, Reynadi Firzy Kurniawati, Diniar Mungil Kustiwansa, Harlian Kusuma, Andhi Indira Leksono, Vridayani Anggi Lolo, Musa Lumbantoruan, Hendra Eliakim Lumenteri, Fido Fortunatus Luthfi Abdurrahman M. Uswah Pawara Manik, Aljoiden mubarak, azhar aras Muhammad Fajrin Wahab Muhammad Yusri Mukti Ardhansyah nada Naufal, Daffa Ahmad Ningrat, Andi Nizam, Syahrul Pangestu, Aldo Pengestu, Pria Adi Pontoh, Arief Nugraha Prayoga, Dimas Pria Adi Pangestu Rachmianty, Andi Rajagukguk, Pernando Anju Rara Gusnia Nurulhaini Rohimsyah, Fikan Mubarok Rusnaedi Saadiyah, Devy Setiorini Samsu Dlukha N Sherina Fitri Hariani Siagian, Firman Veryvicasi Vernando Simatupang, Gusrawati, Sander V S Sitorus, Chris Jeremy Verian Suandar Baso Suardi Suardi Syadzali, Abdul Mujib Syahab, Husein Taufik Hidayat Taufik Hidayat Tobing, Andreyano Yosefan Lumban Usman, Arif Fudddin Wahyuda, Wahyuda Wira Setiawan wulandari, amalia ika