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International Journal of Marine Engineering Innovation and Research
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 25415972     EISSN : 25481479     DOI : ttp://dx.doi.org/10.12962/j25481479
Core Subject : Science, Social, Engineering,
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation
International Journal of Marine Engineering Innovation and Research (IJMEIR) is an open-access journal, which means that visitors all over the world could publish, read, download, cite and distribute papers published in this journal for free of cost. IJMEIR journal has a vast group of visitors, a far-reaching impact and pretty high citation. IJMEIR adopts a peer-review model, which insured fast publishing and convenient submission. IJMEIR now cordially inviting you to contribute or recommend quality papers to us. This journal is geared towards the dissemination of original innovation, research and practical contributions by both scientists and engineers, from both academia and industry. Theses, dissertations, research papers, and reviews associated with all aspects of marine engineering, marine sciences, and marine technology are all acceptable for publication. International Journal of Marine Engineering Innovation and Research (IJMEIR) focus and scopes are preserve prompt publication of manuscripts that meet the broad-spectrum criteria of scientific excellence. Areas of interest include, but are not limited to: Automotive Biochemical Biology Biomedical science Biophysics and biochemistry Chemical Chemistry Combat Engineering Communication Computer science Construction Energy Energy storage Engineering geology Enterprise Entertainment Environmental Environmental Engineering Science Environmental Risk Assessment Environmental technology Financial Engineering Fire Protection Engineering Fisheries science Fishing Food Science and Technology Health Care & Public Health, Health Safety Health Technologies Industrial Technology Industry Business Informatics Machinery Manufacturing Marine Engineering Marine sciences Marine technology Marine biology Marine economic Marine engines Marine fisheries Marine fuel Marine geology Marine geophysic Marine management Marine oil and gas Marine policy Material sciences Materials science and engineering Mathematics Mechanics Medical Technology Metallurgical Micro-technology Military Ammunition Military Technology Military Technology and equipment Mining Motor Vehicles Naval Engineering Neuroscience Nuclear technology Ocean Robotics and Automation Safety Engineering Sanitary Engineering Space Technology Statistics Traffic Transport Visual Technology
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Articles 1,114 Documents
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Fatigue Analysis of Mid-Water Buoy (MWB) due to Changes in Pipeline End Manifold (PLEM) Position Ibrahim Rahmatulloh; Handayanu; Nur Syahroni
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

This research is a case study of the Mid-Water Buoy (MWB) structure on the subsea hose string SPM #4 after the installation of New PLEM C, or in other words in conditions where the subsea hose string (including MWB) has been connected to New PLEM C. MWB is one of the ancillary components of the subsea hose string, which has the main function as a buoy to keep the entire subsea hose string at a safe distance to the seabed. By replacing the old PLEM-C with the New PLEM-C, the dynamic motion of the subsea hose when connected to the New PLEM-C will also be different compared to the dynamic motion when connected to the old PLEM-C. The objective of this study is to analyze the fatigue life of the MWB structure after the use of New PLEM-C. As the main input for fatigue analysis, cyclic load analysis acting on the MWB structure is carried out based on a deterministic approach through time domain simulation and continued with the calculation of the number of cycles with the rainflow cycle counting method. For local stress analysis in the critical area of the MWB structure, the hotspot stress method is carried out through the Finite Element Method (FEM) which refers to DNV-RP-C203. Furthermore, the fatigue life calculation is carried out by applying the Palmgren-Miner rules and utilizing the S-N Curve. From a series of analyses that have been carried out it was found that the lowest fatigue life value for the MWB structure is occurs at PART B1 (the part of the MWB connected to the Subsea Hose STRING B – Upper) with a value of 145.93 years and with an annual damage ratio of 0.0069 for the Connection between the Vertical Stiffener and the Pipe.
CFD-Based Comparative Study of Axe Bow and Bulbous Bow Designs for Corvette Warship Deployment in Natuna Waters Yeddid Yonatan Eka Darma; Reyhan Arfananda Sugiarto; Achdri Fauzi Nugraha Oloan; Fajri Narotama
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 Natuna Sea is considered a prime maritime area for Indonesia, bearing strategic and defense significance, besides its turbulent sea conditions demand warships to adopt or be provided with efficient and stable hull forms. Thus, this study is intended to investigate the most appropriate bow designs for a corvette warship operating in the Natuna region. Three types of bow are compared: a conventional V-hull, sloped bow, bulbous bow and axe bow. Comparison through Computational Fluid Dynamics (CFD) simulation, validated with Holtrop and Savitsky empirical methods, at the speed of 30 knots. Principal dimensions of the corvette were obtained through regression analysis from 20 other warships that belong to the same class. Results reveal that the axe bow has the smallest resistance, that is, 365.18 kN from Holtrop method and 374.27 kN from CFD in contrast to 384.43 kN owing to conventional bow design. It also fulfills all criteria of operation performance and fuel efficiency. Hence, it is considered the best alternative for corvette deployment into the Natuna Sea.
Fatigue Analysis of Pipeline End Manifold (PLEM) due to Cyclic Load from Subsea Hoses Rizal Arif Pratama; Handayanu; Nur Syahroni
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

To ensure the continuity of delivering crude oil from the Central Plant to the Floating Storage and Offloading (FSO), PHE ONWJ plans to replace existing pipelines and Pipeline End Manifolds (PLEM) in order to enhance the integrity and reliability of the Marine Terminal facilities. The configuration changes resulting from the installation of new pipelines and PLEM alter the dynamic interactions between the subsea hoses connected to the New PLEM and Old PLEM, leading to different load conditions on the new PLEM structure. Considering the importance of PLEM in crude oil transfer process from wells within the ONWJ working area to the FSO, thus this research will conduct a fatigue analysis of the Pipeline End Manifold (PLEM) due to cyclic tension loads from subsea hoses. The objective of this research is to predict the fatigue life of New PLEM A structure by applying Palmgren-Miner Rule. The study will begin with an analysis of the mooring lines system and subsea hoses connected to the new PLEM to identify the cyclic tension loads acting on the structure. The analysis was performed using time domain simulation with output in the form of a tension time history. The results of the time tension history will then be processed to find the tension range cycle value using the Rainflow cycle counting method. Furthermore, to assess the stress distribution caused by cyclic loads from the subsea hoses, a local stress analysis will be performed using hotspot stress method by finite element analysis (FEA) which refers to DNV-RP-C203. The result of hotspot stress analysis will be used for the fatigue life calculation of the New PLEM A structure. The analysis results show that the lowest fatigue life of the new PLEM A structure occurs at the connection between pipe support and skid, with a fatigue life value of 17.63 years and a damage ratio of 0.0113. In contrast, the connection between the elbow pipe and flange exhibits a significantly higher fatigue life of 499.38 years and a damage ratio of 4 × 10-4
Design of water Ambulance for Improving Healthcare Services in Mahakam Ulu Regency Chris Jeremy Verian Sitorus; Muhammad Uswah Pawara; Rahmat Hidayat; Hariyono; Harlian Kustiwansa; Alamsyah; Suardi; Muhammad Anjas Syam; Jusma Wahidah; Cindy Lionita Agusty
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

Mahakam Ulu Regency's landscape is dominated by tropical rainforest, with transportation access heavily reliant on river routes. The region is home to 245 rivers, ten of which are classified as major rivers and are distributed across all sub-districts. The Mahakam River serves as the main artery for community activities, including the emergency transport of patients. Nevertheless, serious challenges persist due to limited healthcare infrastructure and inadequate medical transport, which hinder the timely treatment of patients. Currently, there are no water ambulances specifically designed for emergency medical services, leading to delays and increased risks of patient morbidity and mortality.The aim of this study is to develop a water ambulance vessel designed to serve as a dedicated river based medical transport in Mahakam Ulu. A parent ship design approach was applied in the development process. The principal dimensions defined in this study are as follows:Length Overall (LOA): 10.5 m,Beam (B): 3.15 m, Depth (H): 1.35 m, Draft (T): 0.65 m, Service Speed (Vs): 20 knots, Accommodation: 10 crew and passengers. Keywords- Mahakam Ulu, Mahakam River, Water Ambulance, Parent Ship Design
Fuel Saving Model on Seine Net Boats in Palabuhanratu Dwi Putra Yuwandana; Mohammad Fachrurezky Pahlevi; Vita Rumanti Kurniawati; Yopi Novita; Eko Sri Wiyono
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

Fuel oil is a critical input for seine net fishing in Palabuhanratu, yet its rising cost imposes a heavy burden on fishers and boat owners. Although fishers intuitively adjust engine power to reduce fuel use, the effectiveness of these practices remains unclear due to limited data. This study examines fuel consumption patterns of seine net boats and explores potential savings strategies. Data were collected on daily fuel use, vessel speed, trip duration, and operating distances across boats with engines of different ages. Results show that fishing trips follow eight distinct phases: preparation, outbound steaming, setting, hauling, fish hunting, resting, inbound steaming, and berthing. The highest fuel use occurs during fish hunting as well as outbound and inbound steaming, where high speeds and long durations dominate. Engine age strongly influences efficiency: a 6-month-old engine achieved a specific fuel consumption (SFC) of 328.42 g/kWh, compared to 499.33 g/kWh for a 7-year-old and 873.41 g/kWh for a 12-year-old engine. Simulation of reduced speeds during fuel-intensive phases suggests potential savings of 1.7%–21.7%, without compromising operational feasibility. These findings highlight the importance of managing vessel speed and engine condition to optimize fuel efficiency in seine net fisheries.
Structural Response Analysis During Slamming Events on Speedboats Using Aluminum Material Amalia Ika Wulandari; Husein Syahab; Achmad Baidowi; Berlian Arswendo Adietya
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 structural response analysis of an aluminum speedboat during slam-ming due to regular waves was conducted using the one-way fluid-structure interaction method. This method involves generating waves through hydrody-namic diffraction to obtain loads, which are then applied to the ship's struc-ture and analyzed using finite element analysis. It is known that the greater the force generated from slamming , the stress and deformation at the critical load point will increase. In addition to being influenced by the critical point, the maximum stress is also influenced by the ship's construction design. It has been found that the highest stress and deformation occur on the surface of the plate that is not supported by the transverse construction. Therefore, it can be concluded that the construction design can influence the magnitude of the structural response to the slamming event . Efforts that can be made by ship designers and manufacturers are to convert ships by using materials that are better at absorbing loads, such as the use of sandwich materials
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 Variation of Concentration and Pickling Time in SA-312 304 on Oxide Layer Thickness Imah Luluk Kusminah; Wiwik Dwi Pratiwi; Aditya Hermansyah; Dika Anggara; Widya Emilia P
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

Austenitic stainless steel SA-312 Grade 304 offers good corrosion resistance, but welding can form oxide layers that degrade its performance. Pickling with nitric acid (HNO3) and hydrofluoric acid (HF) is commonly used to remove oxides and restore corrosion resistance. This study examines the effects of varying HNO3 concentration and pickling time on oxide layer thickness. Optical and scanning electron microscopy (SEM) were performed. The optimal result was achieved with 15% HNO3 + 4% HF for 35 minutes, producing a 5.6658 µm oxide layer, while 25% HNO3 + 4% HF for 35 minutes yielded only 3.0082 µm. Results show that proper pickling parameters effectively reduce oxide scale.
Direct Decarbonization Model for Handling Equipment at Jamrud Terminal Using a Combination Method of Default Emission Factors (DEF) and Direct Monitoring of Greenhouse Gas Emissions (DMGGE) Sarwo Edy Agus Salim; Saut Gurning; Taufik Fajar Nugroho; Gopinath
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

As one of the largest archipelagic countries with a port system that supports more than 90% of its trade volume, Indonesia faces an urgent need to implement the green port concept to minimize environmental impacts, improve energy efficiency, and support national decarbonization commitments. One example is the Tanjung Perak Port, specifically the Jamrud Terminal in Surabaya. This study takes Jamrud Terminal—which provides loading and unloading services for general cargo, passengers, and dry bulk—as a case study. The terminal operates 24 hours a day and thus undoubtedly contributes to pollution, including air pollution from exhaust gas emissions, which are increasing due to a 23.06% growth in vehicle handling activities throughout 2024. Quantifying greenhouse gas (GHG) emissions from the main quay equipment and supporting equipment at Jamrud Terminal is crucial to assess current fossil fuel energy consumption and propose technological interventions to enhance energy efficiency and reduce GHG intensity from fuel usage.This paper aims to identify and calculate the existing direct emissions, analyze the trend of GHG emissions from port equipment, and develop a projection model of GHG emissions from equipment at Jamrud Terminal. The equipment includes Harbour Mobile Cranes, Harbour Portal Cranes, Excavators, Forklifts, Mobile Sweepers, Wheel Loaders, and Generators, with data sourced from primary records of fuel consumption supplied during the 2022 to 2024 period. GHG emissions projection is modeled using the Default Emission Factors method and the Direct Monitoring of Greenhouse Gas Emissions (DMGGE) approach. The results show that from 2022 to 2024, Jamrud Terminal emitted approximately 7.1 tons of CO2eq from stationary combustion and 5,378.88 tons of CO2eq from mobile combustion.A future decarbonization scenario developed in this study indicates that if the terminal transitions to electrification and the use of alternative energy fuels such as LPG or CNG, CO2 emissions could be reduced by as much as 98.6%. The results of this paper will be valuable in formulating effective planning, policies, and strategies to reduce GHG emissions from direct sources related to both main and supporting equipment at Jamrud Terminal.

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