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All Journal Journal Technology and Implementation Bussines Infotekmesin Jurnal Konversi Energi dan Manufaktur International Journal of Marine Engineering Innovation and Research Marine Science and Technology Journal Journal of Mechanical Engineering, Science, and Innovation Jurnal Teknologi dan Terapan Bisnis WAVE: Jurnal Ilmiah Teknologi Maritim
Priyambodo Nur Ardi Nugroho
Politeknik Perkapalan Negeri Surabaya
Aerospace Engineering Automotive Engineering Computer Science & IT 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

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SWOT and Determinant Factors Approach to Worker Compliance Analysis with Full Body Harness Pass Systems in Construction Projects R.A. Intan Dwi Saraswati; Priyambodo Nur Ardi Nugroho; Dewi Kurniasih
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4848

Abstract

Since construction sites are dangerous by nature, strict safety precautions are necessary. This study examines the Full Body Harness Pass system compliance of workers and the determinants that affect adherence with the aim of improving compliance and reducing avoidable accidents. A SWOT analysis methodology is utilized in the study to integrate quantitative compliance data with qualitative safety officer observations. Results show that though the FBH Pass system raises safety awareness, a number of issues, including poor training and reluctance to use digital tools, limit its utility. These recommendations go towards promoting an overall safer building environment, coupled with extended training programs and improved monitoring.
Design and Strength Analysis of an Amphibious Multipurpose Dredger for the Eastern Surabaya Shipping Lane and the Porong River in Sidoarjo Boedi Herijono; Fangki Indra Wijayanto; Muhammad Ryski Syah Putra; Priyambodo Nur Ardi Nugroho
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 2 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i2.4931

Abstract

This study investigates the problem of sedimentation in the Porong River and the Eastern Surabaya Shipping Lane by taking a close look at the Amphibious Multipurpose Dredger. The study examines the vessel's parameters (length: 14.30 m, breadth: 4.70 m, height: 1.60 m, draft: 1.10 m) in light of the requirements of coastal reclamation. For stability and pressure studies, manual calculations and Finite Element Method simulations are utilised. The results show that the hollow Spud design is superior to the alternatives in terms of material efficiency (Safety Factor: 12.4032). The research makes a substantial contribution by offering an effective way to address sedimentation issues through improved dredger design. Moreover, it emphasizes the crucial part that an adaptable amphibious multipurpose dredger plays in reducing sedimentation. The study highlights the strategic significance of the recommended spud design, satisfying safety regulations and improving operational efficiency, as coastal ecosystems face rising challenges. For practitioners in environmental and maritime engineering looking for sustainable approaches to the development of coastal infrastructure, this paper is an invaluable resource.
Multi-Mold Design For Fishing Boats Southern Coastal Region of Java Budianto; Priyambodo Nur Ardi Nugroho; Ruddianto
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 2 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.5197

Abstract

In general, molding or FRP ship molds can only produce 1 (one) hull shape. This is of course, contrary to the production of ships which are mostly of the customize type (based on consumer demand) and very rarely in the form of mass products to produce sister ships. The high cost in the allocation of molding certainly makes economic considerations regarding the cost of shipbuilding. With the aim of a friendly fishing boat price, of course, it can make a mainstay and ease the burden on the answer to the high demand for fishing boats in the coastal community or the South Coast of Java. Multi-mold is a ship molding solution for FRP ship material that can produce more than one hull shape. This of course, will reduce the cost of producing a ship or boat. The cost budget plan is determined in detail through a survey of material prices and conducting a price determination study with an engineering estimate approach. In the multi-mold system or components, there are the main shell structure, reinforcement frame and suppot or mold holder. The shape of the multi-mold is carefully designed which can be knocked down each constituent component. The multi-mold disassembly process is accompanied by operational instructions and 3D simulation of the multi-mold assembly. The structural strength of the multi-mold components is also analyzed so that an effective and efficient multi-mold design is obtained.
Load Cell Failure Risk in Tandem Mobile Crane Lifting: A Fuzzy Fault Tree Analysis Approach Fatich Pradana Putra; Priyambodo Nur Ardi Nugroho; Imam Sutrisno
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.v10i2.6471

Abstract

Mobile crane lifting activities carry a significant accident risk, especially when performed in tandem configurations. The main risk comes from the possibility of failure of the load cell component which plays an important role in actual load measurement. This research aims to analyze the potential failure of the load cell function in tandem lifting operations using the Fuzzy Fault Tree Analysis (FFTA) method. Data were collected through literature studies, field observations, and interviews. The FFTA method is used to identify factors that cause failure and calculate the probability of failure quantitatively. The investigation identified that the primary variables leading to load cell failure include overload situations, internal component damage, and external impacts. The highest probability of failure was recorded in the material fatigue scenario due to damage to the cable. These findings highlight the need of instituting preventative maintenance programs and conducting frequent inspections of load cell components to reduce the risk of workplace accidents.
Effect of SMAW Process Parameters on Hardness, Temperature Distribution, and Micro–Macro Structure of A36 Steel Welded Joints Desrilia Nursyifaulkhair; Priyambodo Nur Ardi Nugroho; Dianita Wardani; Kharismajid Kharismajid; Mochammad Karim Al Amin; Muhamad Eko Nur Khazi
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.1

Abstract

The outer shell of an ISO tank plays a critical role in maintaining the integrity of its contents by withstanding temperature fluctuations, pressure, and radiation. Research on the fabrication of liquefied natural gas (LNG) tank outer shells therefore provides both scientific and practical value, particularly in ensuring mechanical reliability and structural performance. This study investigates the welding of American Society for Testing Materials (ASTM) A36 steel plates using shielded metal arc welding (SMAW) and evaluates the effect of welding parameters on mechanical and microstructural properties. Four specimens were prepared by varying welding current at 70 and 80 A on plate thicknesses of 4 and 12 mm. The results indicate that both current and thickness significantly influence the weld zone microstructure, with transformations from ferrite–pearlite in the base metal to widmanstätten and acicular ferrite in the weld metal. In terms of mechanical performance, the highest hardness value of 198.387 HVN was recorded in the 4 mm specimen welded at 70 A, demonstrating the strong dependence of hardness on combined current and thickness conditions. These findings contribute to optimizing welding parameters for the safe and reliable application of LNG tank outer shells.
Computational Fluid Dynamics Analysis of the Effect of Stern Shape Modifications on Ship Resistance Julyus Acang Suwignyo Putro; I Putu Sindhu Asmara; Priyambodo Nur Ardi Nugroho
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 2 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.2.7

Abstract

The change of the propulsion system usually involves structural modifications of the stern, which have a large impact on the hydrodynamic behaviour of the ship, e.g. the total resistance and the flow field. Calculations of the drag force and flow velocity are performed in order to investigate the effect of the stern modifications on the vessel resistance. The study was carried out by means of Computational Fluid Dynamics (CFD) simulations in the ANSYS Workbench environment. The research compared four different skeg size variants used after modification of the original hull of the ship. The simulation results show that the flow velocity of the original hull was 3.220 m/s and the drag force was 118.70 kN. Among the tested variations, variation 4 emerged as the most efficient design, yielding a reduced drag force of 81.59 kN and an increased flow velocity of 3.461 m/s. Ultimately, the proposed stern modification successfully lowered the total ship resistance from 118.70 kN to 82.93 kN, achieving a significant 30% reduction in resistance.
Analisis Kekuatan dan Potensi Resonansi pada Pondasi Diesel Generator Menggunakan Metode Elemen Hingga Qoniah Ardelia; Priyambodo Nur Ardi Nugroho; Agung Prasetyo Utomo
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2049

Abstract

The ship’s electrical system heavily relies on a safe and reliable diesel generator foundation. However, many foundation designs currently used in the industry have not been comprehensively validated against classification standards, nor analyzed for resonance potential and fatigue life. This study aims to develop a diesel generator foundation design that complies with ship structural safety standards based on Lloyd’s Register (LR) regulations. The methods used include 3D modeling, structural and resonance analysis using the Finite Element Method (FEM), and validation through manual calculations. The results show that the initial design does not meet safety standards, while the LR-based design yields a maximum stress of 164.01 MPa and a maximum deformation of 0.99981 mm, with a fatigue life reaching 28 years. Both designs indicate no potential for resonance. This study recommends the LR-based foundation design as the optimal solution to ensure structural integrity, long service life, and compliance with maritime safety regulations.
Co-Authors Anis Mustaghfirin Arrad Ghani Safitra Ary Bachtiar Khrisna Putra Boedi Herijono Boedi Herijono Budianto Budianto Budianto Desrilia Nursyifaulkhair Dewi Kurniasih Dianita Wardani Dwi Sasmita Aji Pambudi Dyah Arum Wulandari Eky Novianarenti Fangki Indra Wijayanto Fatich Pradana Putra I Putu Sindhu Asmara Imam Sutrisno Julyus Acang Suwignyo Putro Khairunnisa Kharis Abdullah Kharismajid Kharismajid Kintan Muthia Yasmine Emily Mochammad Karim Al Amin Mohammad Basuki Rahmat Muh. Anis Mustaghfirin Muhamad Eko Nur Khazi Muhammad Abid Al Fatih Muhammad Ryski Syah Putra Qoniah Ardelia R.A. Intan Dwi Saraswati Rini Indarti Ruddianto Ruddianto Ruddianto Setyo Nugroho Tanti Utami Dewi Utomo, Agung Prasetyo