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All Journal Jurnal Penelitian Transportasi Laut International Journal of Marine Engineering Innovation and Research Medic Nutricia : Jurnal Ilmu Kesehatan Jurnal Sains & Teknologi Fakultas Teknik Universitas Darma Persada
Mohammad Danil Arifin
Universitas Darma Persada
Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Transportation Veterinary

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Study of The Technical Approach on Recent Fuel Efficiency to Reduce Ship Emissions Mohammad Danil Arifin; Frengki Mohamad Felayati; Fanny Octaviani
International Journal of Marine Engineering Innovation and Research Vol. 7 No. 1 (2022)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v7i1.5633

Abstract

Engine emissions of ships have been highly concerned in the last decades. Most of the current ship operations worldwide are powered by the combustion engine. Advance ship powering is still on research and hard to implement directly. High cost in the application is the main issue. Meanwhile, the fuel engineering approach is proposed in the recent research to advance engine combustion, thus increasing the combustion efficiency and lowering the emissions target. This study aims to evaluate the development trend on the fuel efficiency technique to lower ship emissions. Emissions management, fuel conversion, and power conversion are the most research focus to improve fuel efficiency. However, implementing some of that research is still hard on ship operation. Technical and economic issues are the main reason. Moreover, fuel efficiency on ships is still highly based on management. Low cost, new combined fuel without separation, and less fuel treatment technology are proposed to avoid confusion on fuel consumption in the near future.
Exploiting Marine BD to Develop MLDB and Its Application to Ship Basic Planning Support Mohammad Danil Arifin; Fanny Octaviani
International Journal of Marine Engineering Innovation and Research Vol. 6 No. 4 (2021)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v6i4.5679

Abstract

Recently, the global marine logistics industry has changed significantly because of the global movement of goods. Where the amount of available data and attention paid to extensive data analysis in various topics exponentially grows, it is possible to obtain vast amounts of marine BD. However, the collection of BD groups is difficult to organize and frequently redundant. This is why the database can be so important. If these BD are effectively utilized, great innovation can be achieved in the marine industry. In this study, we develop a marine logistics database to ship basic planning support in the future. The database under study consists of BD sets, i.e. port, ship, route, international trade, and ship operation information from automatic identification system data. As a result, the relational database was developed. The effectiveness of the database is evaluated and extracted data from the database necessary for ship basic planning is discussed.
Cavitation Analysis of Kaplan-Series Propeller: Effect of Pitch Ratio and nProp using CFD Mohammad Danil Arifin; Frengki Mohamad Felayati
International Journal of Marine Engineering Innovation and Research Vol. 6 No. 2 (2021)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v6i2.5847

Abstract

Cavitation is defined as a phenomenon or action of the traveling bubbles that pass through the hydrofoil in which the reduction of pressure below the liquid’s vapor pressure leads to the formation of small vapor bubbles (or cavities) caused by the dynamic pressure of the propeller blades. It caused some effects on the propeller of the ship i.e. it can greatly reduce a ship’s propelling efficiency, damaged propeller material or blade erosion, vibration, and disturbance noises. Cavitation can be minimized by proper attention regarding the design of the propellers and variation of propeller variables parameters. For that reason, this research conducts a cavitation analysis on the Kaplan-Series of the CPP by varying P/Db=0.4, P/Db=0.6, and P/Db=0.8; also the rotational speed of the propeller (nProp) i.e. 125 rpm, 175 rpm and, 225 rpm. The numerical analysis was made based on the Computational Fluid Dynamic Method (CFD) to calculate the pressure ratio (deltaP) and percentages of the cavitation area (Rs) due to a configuration of the propellers parameter. The simulation consists of the 3 steps; pre-processor, solver manager, and post-processor. The result shows that the value of the pressure ratio increased significantly at the higher P/Db and nProp. Also, the variation of P/Db and nProp has a significant effect on the development of Rs (%) at the higher P/Db and nProp.
Numerical Study of B-Screw Ship Propeller Performance: Effect of Tubercle Leading Edge Mohammad Danil Arifin; Frengki Mohamad Felayati
International Journal of Marine Engineering Innovation and Research Vol. 6 No. 1 (2021)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v6i1.5853

Abstract

Various attempts to modify the ship's propeller have been made to improve performance as a propulsion component. This paper analyzes the effect of modification of the B-Series propeller by adopting a whale fin shape (Humpback Whale). Also, it analyzes the flow in the propeller before (standard) and after modification. Modifications are made to the leading edge, which is called the tubercle leading edge (TLE). It adds and subtracts sections with a wavelength of 0.2R and amplitude of 2.5% of the chord section length in the propeller leading edge. The numerical study is used using CFD on different J values (0.2, 0.4, and 0.6). It was found that the modification of TLE has a less significant effect on performance. Instead, it decreased at a low J value (0.2). Meanwhile, the largest decrease was at a high J value (0.6), namely up to 10.4% for thrust, 4.3% for torque, and 6.4% for efficiency. Whereas at J=0.4, the torque increases only 0.4%, and the torque and thrust decrease, although less significant. The flow analysis indicates that the shape of the TLE provides a decrease in pressure. However, on the positive side, this modification provides a reduction in noise on the propeller surface.
Analysis of the Effect of Changes in Pitch Ratio and Number of Blades on Cavitation on CPP Mohammad Danil Arifin; Danny Faturachman; Fanny Octaviani; Karina Adinda Sulaeman
International Journal of Marine Engineering Innovation and Research Vol. 5 No. 4 (2020)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v5i4.5962

Abstract

Cavitation is a detrimental phenomenon to ship operations because it causes many losses. It caused some effects i.e decreased propeller efficiency, damaged propeller material, lower ship speed, vibration, and extreme noises. In that regard, this research conducts cavitation analysis on controllable pitch propeller (CPP) by varying number of blade i.e. 3, 4 and 5 blades; diameter i.e. 30, 40 cm and 50 cm; also pitch i.e 0.4, 0.6 and 0.8. The research method is carried out by the author in this study by conducting a simulation method based on the CFD approach. The simulation process consists of 3 stage-post processor, solver manager, and post-processor. From the simulation based on the CFD approach result, it was found that propeller rotation has an effect on the pressure ratio value. As the propeller rotation increase, the value of the pressure ratio will increase as well. The value of the pressure ratio in propeller design affects the cavitation area that occurs in the propeller. The percentage of the cavitation area on the propeller has an increasing tendency with the number of blades, rotation, and pitch. On the propeller with diameter 300 mm, 3 blades, pitch 0.8 at rotation 125 rpm no indication of cavitation, then it increases to 1.41% at rotation 175 rpm and keeps getting higher at rotation 225 to be 4.22% from total propeller expanding area. Whereas at rotation 225 rpm and pitch 0.4 is 3.38 %, then it becomes 3.85 % at pitch 0.6, which is getting bigger at pitch 0.8 that is 4.22 %.
Integration of OHSMS and Marketing Strategies in Shipbuilding: Literature Review and Its Implications on Productivity Melani Quintania; Mohammad Danil Arifin
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6384

Abstract

The shipbuilding industry is characterized by high-risk working environments, making the implementation of Occupational Health and Safety Management Systems (OHSMS) critically important. While OHSMS has traditionally been regarded as a tool for regulatory compliance, recent studies suggest can also function as a strategic asset that enhances a company's market positioning. This paper aims to investigate the integration of OHSMS with marketing strategies in the shipbuilding industry and evaluate their combined impact on productivity. A systematic literature review was conducted, analyzing 40 selected sources including peer-reviewed journal articles, industry reports, and regulatory frameworks. The review reveals that companies that strategically align their safety management systems with marketing communications tend to achieve multiple benefits, such as improved safety performance, stronger client trust, enhanced brand reputation, and increased productivity. These findings support the growing perspective that occupational health and safety can serve not only as an internal operational necessity but also as a competitive differentiator. The study contributes to the literature by highlighting the untapped potential of safety performance as a component of industrial marketing and suggests that cross-functional collaboration between health and safety and marketing teams can deliver both operational and reputational advantages.
Automatic Identification System (AIS) Data Reliability and Its Implications for Maritime Safety in Indonesia Mohammad Danil Arifin; Muswar Muslim; Fanny Octaviani; Danny Faturachman
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 3 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i3

Abstract

The Automatic Identification System (AIS) is central to vessel monitoring, traffic management, and maritime safety, yet concerns remain regarding its reliability due to incomplete, inaccurate, or delayed reporting. This study assesses AIS data from the Indonesian maritime domain, focusing on four parameters: completeness, accuracy, consistency, and timeliness. AIS records data were preprocessed through data cleaning, filtering, and detection of missing values in static fields such as draught, beam, LOA, deadweight, and gross tonnage (GT). Statistical and spatial-temporal analyses using Python were applied to quantify missing data, identify anomalies, and evaluate reporting intervals. Results show high completeness (97.5%), although missing draught data (6.77%) limited under-keel clearance assessments, while small gaps in beam and LOA affected collision risk modeling and berth allocation. Accuracy was moderate, with invalid speed and course records observed, whereas consistency was excellent, with MMSI and ship names fully aligned. Timeliness proved weakest, with median reporting intervals (8,380 seconds) exceeding IMO standards, restricting real-time navigational use but remaining suitable for long-term monitoring. Overall, AIS in Indonesia is reliable for strategic traffic analysis but insufficient for operational safety management. Strengthening reporting compliance, integrating port and registry databases, and applying anomaly detection and satellite AIS are recommended to enhance maritime safety.
Ergonomic Analysis of Welding Postures on Productivity and Weld Quality Using the REBA Method Mohammad Danil Arifin; Yoseph Arya Dewanto; Aldyn Clinton Partahi Oloan; Kalpika Arhan Nugraha
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 3 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i3

Abstract

Ergonomics in the workplace plays a vital role in reducing the risk of musculoskeletal disorders, preventing accidents, and improving both work efficiency and productivity. In shipbuilding welding activities, workers are frequently exposed to awkward and static postures that lead to fatigue, stress, and long-term injuries, which may compromise weld quality and project performance. This study aims to analyze ergonomic risks across four welding postures i.e., downhand, vertical, horizontal, and overhead, using the Rapid Entire Body Assessment (REBA) and Nordic Body Map (NBM) methods. The REBA assessment indicated that downhand welding scored 10 (high risk), vertical welding 11 (very high risk), horizontal welding 8 (high risk), and overhead welding 9 (high risk). NBM results revealed that 77.5% of welders in vertical welding reported waist pain, 72.5% calf pain, and 70% back pain; horizontal welding showed 67.5% right-hand pain and 65% right-wrist pain; overhead welding resulted in 57.5% neck and waist pain; while downhand welding still caused 70% complaints in the back and calves. These findings confirm that welding ergonomics directly affect worker health, weld quality, and productivity. The study recommends ergonomic interventions such as scaffolding, adjustable supports, arm rests, and proper work rotation to minimize strain, enhance safety, and ensure efficiency in shipyard operations.
Analysis of Causes and Impacts of Tug and Barge Vessel Accidents Using the Analytic Hierarchy Process: A Case Study of XYZ Company Danil Arifin, Mohammad; Mohammad Fajar Sodiq; Aldyn Clinton Partahi Oloan; Y. Arya Dewanto; Fanny Octaviani
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Indonesia’s maritime sector plays a strategic role in national logistics, where tug and barge vessels are widely used to transport bulk commodities due to their cost efficiency and operational flexibility. However, tug and barge operations face a high risk of accidents, particularly in densely trafficked waterways and challenging environmental conditions. This study aims to analyze the causes and impacts of tug and barge vessel accidents at Company XYZ during the period 2015–2024 and to determine priority mitigation measures using the Analytic Hierarchy Process (AHP). The study analyzes 170 recorded accident cases classified into human, technical, environmental, and procedural factors. The results show that human factors are the dominant cause, contributing 55.8% of accidents, followed by technical factors (26.3%), environmental factors (12.2%), and procedural factors (5.7%). The accidents resulted in material losses, operational delays of 3–7 days per incident, and environmental impacts such as fuel spills and onboard fires. The AHP results indicate that human-related factors are the highest priority for mitigation, followed by technical, environmental, and procedural factors, with a consistency ratio of 0.043, indicating acceptable reliability. This study provides a structured decision-making approach to support safety improvement and risk mitigation in tug and barge vessel operations.
Structural Integrity and Edge Stiffness Evaluation of GFRP Modular Towing Tank: Analytical and Numerical Study: Analytical and Numerical Study AR-RABAQI, MUHAMMAD A'ZOM; Muswar Muslim; Ayom Buwono; Moch Ricky Dariansyah; Mohammad Danil Arifin; ALDYN CLINTON PARTAHI OLOAN; Sulaksana Permana
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Conventional hydrodynamic testing facilities require substantial capital investment, limiting maritime research accessibility in developing nations. This study addresses the structural integrity and global stiffness challenges in designing a modular Glass Fiber Reinforced Polymer (GFRP) composite towing tank as a cost-effective alternative. A hybrid laminate configuration combining Chopped Strand Mat 450 g/m² and Woven Roving 800 g/m² was analyzed under hydrostatic loading using Classical Laminate Theory (CLT) and Finite Element Method (FEM). Analytical predictions indicated acceptable performance with 26.09 MPa bending stress and 5.95 mm deflection under fully clamped boundary assumptions. However, full-scale FEM simulation revealed critical free-edge effects, producing 41 MPa Von Mises stress and 62 mm deflection at the tank rim exceeding the L/200 serviceability limit despite maintaining a safety factor of 3.65. This study demonstrates that while the 19 mm wall thickness satisfies strength requirements per ASME RTP-1 standards, edge stiffening through horizontal rim reinforcement is essential to control excessive deformation in open-top modular configurations.
Co-Authors Aldyn Clinton Partahi Oloan AR-RABAQI, MUHAMMAD A'ZOM Ayom Buwono Bima Ramadhani Brahmantyo, Esaricko Herli Danny Faturachman Danny Faturachman, Danny Eka Darma, Yeddid Yonatan Esaricko Herli Brahmantyo Fanny Octaviani Fanny Octaviani Fanny Octaviani Frengki Mohamad Felayati Frengki Mohamad Felayati Frengki Mohamad Felayati Frengki Mohamad Felayati I.G.N.A Satria Prasetya I.G.N.A. Satria Prasetya Kalpika Arhan Nugraha Karina A. Sulaeman Karina Adinda Sulaeman Mahtum, M. Melani Quintania Moch Ricky Dariansyah Moch Ricky Dariansyah Mochammad Ricky Dariansyah Mohammad Fajar Sodiq Muswar Muslim Muswar Muslim Novita, Theresiana. D. Putra Pratama Putra Pratama Shahrin Febrian Sulaksana Permana Theresiana. D. Novita Y. Arya Dewanto Yeddid Yonatan Eka Darma Yoseph Arya Dewanto Zanzibar