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This Author published in this journals
All Journal IJOCE (International Journal of Offshore and Coastal Engineering) Journal of Social Science Utilizing Technology
Wawan Kusdiana
Sekolah Tinggi Teknologi Angkatan Laut
Engineering

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Design Stealth Fast Attack Vehicle (SFAV) 18 Meters Using Numerical Method as Coastal Patrol Vessels Cahya Kusuma; Wawan Kusdiana; Muhammad Syaifi; Wika Adhietama Sumarsono
International Journal of Offshore and Coastal Engineering Vol. 7 No. 1 (2023)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25800914.v7i1.15525

Abstract

The design of the 18 Meter Stealth Fast Attack Vehicle (SFAV) with Maxsurf software and the Savitsky method as a coastal patrol vessel is a fast ship that has stealth capabilities that can be used as a coastal patrol vessel area 12 NM to supervise fishing vessels so that fishing and marine resources do not damage the environment such as the use of tiger trawls and marine bombs. The ship model resistance and stability are analyzed using the numerical software Maxsurf Modeller Advanced V8i. Lines plan and general arrangement using AutoCAD software. Model analysis, the design of the SFAV Interceptor Vehicle uses the spiral design method, while the prediction of the resistance value uses the Savitsky preplanning and planning methods. Ship stability uses standardized values issued by IMO, which can be applied to the Maxsurf Stability Advanced V8i software. The analysis results of resistance prediction software and numerical successively 43.416 kN, 45.526 kN, with a difference of 4.6%. The stability analysis is predicted using heel angle model analysis on Maxsurf stability software in various conditions. The results meet IMO standards and capable of sea stage 4. The existence of SFAV ships will help security patrols to protect the coastal area.
Design Unmanned Minesweeper Catamaran as a Tool to Make a Safer Marine Environmental Using Analytical Methods Cahya Kusuma; Radityo Dimas Mulyono; Wawan Kusdiana; Muhammad Syaifi; Mahendra Indiaryanto
International Journal of Offshore and Coastal Engineering Vol. 7 No. 1 (2023)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25800914.v7i1.15527

Abstract

After the war is over, the sea mine layer must be neutralized because if the mine explodes, it will cause environmental damage and the death of marine life. Minefields with very shallow water are difficult to clear using a minehunter. Mining in shallow sediment-covered areas is still hazardous, especially if the area is bridges, shore dredging, ports, or shipping lanes. This study designed the hull of the Unmanned Mines Sweeper (UMS) Catamaran, which towing side scan sonar so that it could double function as a mine-like detection and a survey vessel for seabed environmental conditions in very shallow areas. UMS design with analysis method using Maxsurf Modeler Advanced V21.13 software. Line plan design and general settings using AutoCAD software with data obtained from models designed using Maxsurf software. Total resistance value using Maxsurf Resistance Advanced V21.13 software. UMS uses a Catamaran design with an LoA of 4.823 meters, LwL of 4.177 m, and a width of 2.24 m. The ship has a high draft of 0.498 with a displacement of 1.557 tons. The results of the resistance analysis obtained Rt of 404.94 N. The drive system uses an electric motor that can provide endurance for 6 hours.
Energy Efficiency Analysis of 3D Printing Machines (Additive Manufacturing) in Supporting Local MSMEs: Poverty Alleviation Opportunities in the Digital Era Anton Nugroho; Wawan Kusdiana
Journal of Social Science Utilizing Technology Vol. 4 No. 1 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jssut.v4i1.3505

Abstract

Background. The rapid development of additive manufacturing, particularly 3D printing technology, has created new opportunities for small and medium enterprises (SMEs) to engage in flexible and low-volume production within the digital economy. Energy efficiency has become a critical factor influencing the operational feasibility of this technology, especially for SMEs that operate with limited financial resources and infrastructure. Understanding the energy performance of 3D printing machines is therefore essential for evaluating their potential role in supporting sustainable entrepreneurship and poverty alleviation. Purpose. This study aims to analyze the energy efficiency of 3D printing machines in additive manufacturing processes and examine their potential contribution to strengthening local SMEs and expanding economic opportunities in the digital era. Method. The research employs a quantitative experimental design combined with descriptive analysis. Energy consumption data were collected using digital power meters during standardized printing experiments involving several desktop 3D printers commonly used by SMEs. Statistical analysis was conducted to compare machine efficiency and evaluate the relationship between printing parameters and electricity consumption. Results. The findings indicate significant differences in energy consumption across machine types and printing configurations. Optimized parameter settings and efficient machine architecture reduce electricity usage and operational costs. Evidence from SME production contexts demonstrates that energy-efficient additive manufacturing supports faster prototyping and flexible small-scale production. Conclusion. Energy-efficient 3D printing technology represents a promising tool for strengthening SME productivity and fostering inclusive economic development in the digital era.
Co-Authors Anton Nugroho Cahya Kusuma Cahya Kusuma Mahendra Indiaryanto Muhammad Syaifi Radityo Dimas Mulyono Wika Adhietama Sumarsono