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WAVE: Jurnal Ilmiah Teknologi Maritim
Published by Badan Riset dan Inovasi Nasional
ISSN : 1978886X     EISSN : 2614641X     DOI : https://doi.org/10.55981/wave
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Engineering Mechanical Engineering Transportation
WAVE: Jurnal Ilmiah Teknologi Maritim (Journal of Maritime Technology) (e-ISSN: 2614-641X, p-ISSN: 1978-886X) is journal for publication result in science, assessment and application of technology from Engineer, Scienties, Researcher, Lecturer and Scholar in Maritime Technology (Naval Architecture, Offshore Engineering and Coastal Engineering). WAVE is an accredited Sinta 4 which is publised twice a year in June dan December. WAVE accept journal manuscript is result from research (not journal review) and is never publish anywhere. Journal manusript have focus and scope in Maritime Technology (Naval Architecture, Offshore Engineering and Coastal Engineering) which cover: Shipbuilding and Floating Structure Design Technology Hydrodynamic Technology of Offshore Structures Marine Engineering and Underwater Acoustic Technology Planning & Management of Ports and Coastal Areas Port Infrastructures and Coastal Structures Technology Coastal Processes Ocean Wave Mechanics, Extreme Waves/Tsunamis, and Other Water Related Disasters Coastal Hydroinformatics Marine Renewable Energy Conversion Technology Marine Numerical and Safety Analysis WAVE is index in: DOAJ, GARUDA, SINTA, GoogleScholar, Dimensions, OpenAire, ScienceGate, Scilit, ROAD, WorldCat and Crossref.
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 5 Documents
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Search results for , issue "Vol. 18 No. 1 (2024)" : 5 Documents clear
The Effect of Bow Flare Angle Variation on Speed Boat Resistance Sayyid Muhammad Al Ghofur; Arasy Fahruddin
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 18 No. 1 (2024)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2024.5004

Abstract

The ship design industry today needs innovation, especially in terms of speed boat design, to improve efficiency and stability. The study aims to analyze the influence of the variation of the bow flare angle on the obstacles on the speed boat. Through numerical simulations using Maxsurf Resistance software and Savitsky Pre-Planing, Savitsky Planing, and Holtrop calculation methods, the study analyzed variations in bow flare angles of 25º, 30º, and 35º at speeds of 17, 19, and 21 knots. The simulation results showed that the 35º bow flare angle gives the lowest impediment of 34 kN and requires a power of 367,163 kW at a speed of 21 knots, making it a more efficient choice compared to the 25º and 30º angles which yield the highest impedance of 34.2 kN and requires 369,739 kW power. This analysis confirms that a larger bow flare angle can reduce barriers and improve energy efficiency, which is important for the design and operation of speed boats. These results show that choosing the right bow flare angle can improve ship speed efficiency by reducing obstacles and fuel consumption. The results of this research are expected to be beneficial to the designers and operators of speed boats in achieving optimal performance.
Design and Construction Analysis of a River Cruise Boat using an Electric Motor Drive Aditya Djunaidi; Erifive Pranatal
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 18 No. 1 (2024)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2024.6234

Abstract

Surabaya has many large rivers, so it has tourism potential if the management can utilize the river. Surabaya needs a ship that can accommodate river cruising activities to maximize the river's potential. Fiber-based boats are suitable for these activities because fiber materials tend to be durable, lightweight, and easily made. Therefore the boat was designed using fiberglass, which had the primary size; 10 meters long, 2.3 meters wide, 1.2 meters high, and 0.5 meters draft. The primary size allowed the boat to carry 11 passengers, including one helmsman, in one trip. The boat used an electric outboard engine with four horsepower that could make the boat travel at a speed of 4 knots, so the ship required 20 minutes to make a trip. The overall cost to make the boat amounted to Rp. 47.345.600.
Fire and Rescue Boat Design in Tanjung Perak Waters Aldrin Ferdiansyah; Erivife Pranatal
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 18 No. 1 (2024)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2024.6236

Abstract

Tanjung Perak is the name of a port located on Jalan Jamrud Utara, Perak Utara, Pabean Cantian District, Surabaya, East Java, 60165. Geographically, Tanjung Perak port is located between 112°-30’-13’’ East Longitude and 07°-70’-30’’ South Latitude, precisely in the Madura Strait, North of Surabaya. The number of ships passing through Tanjung Perak waters is very large so the number of ships passing increases the potential for accidents. It is conducted to minimize ship accidents that cause fatalities or losses. Shipbuilding in the maritime world involves stages ranging from determining ship geometry, conducting resistance and stability analysis, and designing effective propulsion systems. In addition, ship design must also consider variables such as line plan which focuses on the physical aspects and hydrodynamic performance of the ship, while general arrangement focuses on the internal organization and function of the ship. Other safety support facilities are Life Buoy, Life Jacket and complete firefighter safety clothing. The researcher obtained the main dimensions with a ship length of 7.5 meters, width of 2 meters, height of 1.6 meters, draft of 0.5 meters, and speed of V 8 Knots. The ship is equipped with a water pump with a flow rate of 199 meters/minute or 3.316 meters/second. The ship has a specific speed of 157rpm which functions to extinguish fires when a fire occurs on the ship.
Effect of Electrode and Current Variation of Smaw Welding With V-ShapeOn the Bending Strength of ASTMA36 Ship Steel Plate Material Regi Septian Permadi; Erifive Pranatal
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 18 No. 1 (2024)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2024.6269

Abstract

This study aims to analyze the effect of current and type of electrode on bending strength with V-shoulder and using SMAW (Shielded Metal Arc Welding) welding on ASTM A36 steel plate. The SMAW welding method was chosen because of its wide use in the industrial field, one of which is in the field of steel ship construction. The welding process is carried out with current variations of 90A, 100A and 130A and the types of electrodes used are AWS E6013 and AWS E7016. Bending tests were conducted using relevant ASME Section IX standards to evaluate the strength and ductility of the joints. After obtaining data from the test results of several samples from different electrodes with different currents, the average value is obtained, namely, the sample using the E7016 electrode with a current of 100A is 1771,63 MPa, the sample using the E6013 electrode with a current of 90A is 1485,21 MPa. From these results it can be concluded that there is a difference in bending strength between each specimen, which indicates that variability in test conditions, such as current variation and electrode variation, is an important role in influencing the final results in bending testing. Experimental studies are carried out by testing bending on specimens that have been welded with welding current and electrode.
Analysis of Resistance and Flow Velocity on Barge Skeg VariationsUsing Computational Fluid Dynamics Method Chintya Intan Prastika; Priyambodo Nur Ardi Nugroho; Desi Tri Cahyaningati
WAVE: Jurnal Ilmiah Teknologi Maritim Vol. 18 No. 1 (2024)
Publisher : National Research and Innovation Agency (BRIN Publishing)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/wave.2024.8899

Abstract

The maritime sector utilizes various technologies, including barges, which rely on tugboats for propulsion due to lacking their propulsion system. To enhance sailing efficiency, stern modifications through skeg additions can optimize performance, though these affect drag force and velocity. This study analyzed 12 skeg variations using Computational Fluid Dynamics (CFD) simulation via ANSYS Workbench software to determine optimal design configurations. At 4 knots, the analysis revealed variation 3 as the most efficient design, producing a drag force of 17,775.80 N and velocity-u of 2.07198 m/s. Similarly, at 8 knots, variation 3 maintained optimal performance with a drag force of 67,405.60 N and velocity-u of 4.1430 m/s. Results demonstrated that variation 3 consistently provided the most stable and optimal performance across low and high speeds. These findings provide valuable insights for future barge design considerations, offering a reliable reference for selecting optimal skeg configurations.

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