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Department Of Ocean Engineering, Faculty Of Engineering Of Hasanuddin University, Naval A Building 1'st Floor Unhas Gowa of Engineering Campus, Street of Poros Malino No.28 Bontomarannu, South Sulawesi
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Maritime Park: Journal Of Maritime Technology and Socienty
Published by Universitas Hasanuddin
ISSN : 28287010     EISSN : 28286669     DOI : 10.20956
Core Subject : Social, Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering
Isu maritim menjadi fokus utama dunia, hal ini tidak lepas dari bumi kita yang memiliki sekitar 70 persen luas lautan. Jadi penelitian tentang kemaritiman merupakan investasi jangka panjang karena memakan biaya yang banyak dan waktu yang lama, barulah dapat terlihat manfaatnya. Untuk itu, penelitian kemaritiman yang akan berdampak besar harus mendapat perhatian dan dukungan dana yang besar. Investasi untuk penelitian kelautan dapat berupa peningkatan kapasitas sumber daya manusia penelitian, pemutakhiran infrastruktur penelitian dan pembiayaan kegiatan penelitian. Oleh karena itu, diperlukan inovasi dan sinergi untuk menghasilkan penelitian teknologi maritim oleh perguruan tinggi, lembaga penelitian, dan industri yang dapat berkontribusi pada masalah ini. Selain itu, Jurnal Taman Maritim bertujuan untuk menjawab apakah penelitian tentang teknologi maritim oleh universitas, lembaga penelitian, dan industri dapat berkontribusi pada masalah Maritim Dunia. Kontribusi tersebut diharapkan dapat bertukar informasi, pengalaman, pemikiran dan juga untuk memperkuat jaringan kerjasama antar institusi, institusi, dan industri dalam skala nasional/internasional. Sehingga terjadi komunikasi ilmiah antara peneliti, industri, dan pendidikan. Fokus dan Ruang Lingkup Taman Maritim adalah teknologi dan kehidupan masyarakat yaitu Desain Bangunan Kelautan dan Perikanan. Manajemen Transportasi dan Aplikasi Teknologi Pelayaran, Energi Laut Terbarukan, Material Laut Canggih, Manajemen Pelabuhan, Pengembangan SDM Pesisir, Bencana Lingkungan Maritim, Teknik Oseanografi, serta Sistem dan Kontrol Laut.
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 8 Documents
 1 
Search results for , issue "Volume 1, Issue 3, 2022" : 8 Documents clear
Analisys of Hull Shape Art, Speed, Resistance, Power Using Holtrop Method On A Vessel With DWT 12,335 Ton Caecielia, Indira Joan; Tuharea, Natasha Dewanti
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1105.804 KB) | DOI: 10.62012/mp.v1i3.21950

Abstract

A general cargo vessel carries various kinds of cargo in the form of goods. The goods transported are usually packaged goods. General cargo vessels are equipped with cargo cranes to facilitate the loading and unloading of cargo. This study aims to determine the relation between speed, resistance, and power using the Holtrop method on vessels with a DWT of 12,335 Tons. The ship was modelled using shipping software, and then validated the results with Holtrop mathematical calculations. Holtrop method for calculating tankers, general cargo, fishing vessels, tugs, passengers, containers, and frigates By using the main dimensions of the ship with Length Over All (LOA) 129.8 m, Length Between Perpendicular (LBP) 110 m, Length On Load Waterline (LWL) 112.75 m, Breadth (B) 18 m. height (H) 9 m, Draft (H) 7.2 m, Speed (V) 12.5 Knots. Tests were carried out on Maxsurf Software by calculating resistance and obtaining a graph that displays the relationship between power and speed and resistance and speed.
Analysis Of Policy Has Been Established By The Minister On Opening The Export Of Lobster Seed In Indonesia Kyaw, Aung Ye; Jalil, Jalil
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (564.047 KB) | DOI: 10.62012/mp.v1i3.21957

Abstract

Seakeeping is the ship's ability to stay afloat on the waves. The ship's maneuverability is greatly influenced by external factors related to the state of the sea and the waters in which the ship sails. Calculating seakeeping with various variations of depth, current, and wave height is needed for ship safety when sailing in the calculation of seakeeping using linear strip theory to calculate the response of heaving and pitching movements while roll damping theory for rolling movements. In this study, the ship's motion is calculated using the Finite element method software Hydrodynamic Diffraction and Hydrodynamic Time Response. For variations in wave height and water depth, referring to the conditions of Indonesian waters, from the reference, variations in wave height of 3 m, and 5 m (based on sea state WMO). In contrast, the current variation uses a current with a speed of 10 knots and a current depth of 10 T, 15 T, and 20 T. Based on the data obtained in data processing, it can be seen that the high value of the wave frequency obtained at 90 and 270 degrees wave direction is relatively high. The value of the roll spectrum in the direction of 0 and 270 degrees is large and can cause rolling on the ship. In the direction of 0 and 270 degrees, the wave resistance can be reduced by th Lobsters are animals that enter into crustaceans that have problematic skin. Adult lobsters can generally be found on a stretch of sand with coral spots with a depth of between 5-100 meters. This condition will cause a low number of young lobsters in the waters. This research was conducted with a case study regarding the policy of opening lobster seed export, which aims to find out how the policy is to open the export of lobster seed. The data obtained is done by reviewing the literature on the internet. Based on the analysis, the export profit of lobster seeds has continued to increase every month since it was again allowed by the government in May 2020. Based on data from the Central Statistics Agency (BPS), lobster seeds began to be re-exported in June 2020 at 32 kilograms, costing the US $ 112,990. The government can help with training and outreach on lobster cultivation. The government can offer Lobster a partnership package to help people start a freshwater crayfish business.
Analysis Of The Placement And Needs Of General Cargo Ship Tanks With DWT 3650 Tons Sade, Juswan
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (841.463 KB) | DOI: 10.62012/mp.v1i3.21979

Abstract

The double bottom can enhance the ship's safety and a ballast tank. If the ship crashes into a rock and the outer bottom plate is torn, the watertight top tank will limit/protect the cargo from damage caused by water. The tank is a cargo storage container and is the central part of the liquid and gas transport vessel so that the cargo is maintained and safe. As a storage medium, the tank will always get a load from inside or outside the tank—calculating tank requirements using Simpson's approach. From the calculation results obtained fuel tank obtained 68,354 m3, and the diesel oil tank obtained 14,758 m3. The lubricating oil tank obtained 17,566 m3. The freshwater tank obtained 72,815 m3, and the Ballast tank obtained 356,098 m3.
Ocean Acidification as Physical Indicator for Climate Change Ba Naga, Mohammed Hussein
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v1i3.23465

Abstract

Atmospheric carbon dioxide concentration is expected to exceed 500 parts per million and global temperatures to rise by at least 2°C by 2050 to 2100, values that significantly exceed those of at least the past 420,000 years during which most extant marine organisms evolved. Under conditions expected in the 21st century, global warming and ocean acidification will be a greatly concerned.
Comparative Analysis of Faired-In Bulb and Bulbous Bow Ram Bow's Bulbous Bow Shape On Total Ship Resistance Zabrina Nuramalia; Ramadani Japri
Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Departemen of Ocean Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/maritimepark.v1i3.23581

Abstract

A General Cargo Ship is a ship that carries various kinds of cargo in the form of goods. The goods transported are usually packaged goods. Using a bulbous bow on the ship's bow is the best alternative. Bulbous bows are installed on ships with high speed to reduce drag, whose nature depends on the function of the block coefficient and Froude number of ships. Ships with particular Cb and Fn can use a Bulbous bow due to considering the advantages of a significant enough resistance reduction, or vice versa. This research is a general cargo ship model with a bulbous bow. They are using the main dimensions of the ship with Length Over All (LOA) 153.45 m, Length Between Perpendicular (LBP) 144.2 m, Length On Load Waterline (LWL) 147.8 m, and Breadth (B) 25.27 m. height (H) 13.5 m, Draft (T) 9.52 m, Speed ​​(V) 14.75 Knots. The magnitude of the resistance and practical power of the ship required to reach a speed of 14.75 knots on a ship with the Faired-in Bulb type obtained from maxsurf 431.9 kN and 4096, 548 HP. For Bulbous bow type Ram Bow ships, the resistance and adequate power obtained are 431.3 kN and 4090,683 Hp. The ship's power using the Bulbous bow Faired-in Bulb is more significant than using the Bulbous bow of the Ram Bow type.
Analysis of The Effect of Speed on Seakeeping and Ship Motion Juswan Sade; Muhammad Syaifullah
Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Departemen of Ocean Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/maritimepark.v1i3.23583

Abstract

Ship motion is the ability of a ship to survive at sea under any conditions. Therefore this capability is an essential aspect in terms of ship design. The shape of the hull dramatically influences the characteristics of the movement and operability of the ship itself. Vessel operability is the time at sea when the structure can still operate according to the established criteria and its correlation to the wave height where the requirements will be exceeded. In this study, an analysis of 3 degrees of freedom of translational movement and rotation of heave roll and pitch was carried out on the planing hull type fast boat model at regular waves with the parameters of body mass, gyration radius, damping, and others presented in the form of a Response Amplitude Operator (RAO) graphic image.
Analisys of Hull Shape Art, Speed, Resistance, Power Using Holtrop Method On A Vessel With DWT 12,335 Ton Indira Joan Caecielia; Natasha Dewanti Tuharea
Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Departemen of Ocean Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/maritimepark.v1i3.23585

Abstract

The ship's resistance affects the selection of the main engine of the ship, especially the bulk carrier ship, which has a significant block coefficient. This study aims to obtain ship resistance with the Holtrop method on bulk carrier ships with a DWT of 30,000 tons. Holtrop method for calculation of tanker, general cargo, fishing vessel, tug, passenger, container, and frigate by using the main dimensions of the ship with Length Between Perpendicular (LPP) 175.27 m, Length on Load Waterline (LWL) 177.95 m, Breadth (B) 24.33 m. height (H) 14.5 m, Draft (T) 10.4 m, Speed (V) 14.5 Knots. Based on computerized results for a speed of 14.5 knots, the ship resistance value is 481.0 KN.
The Analysis of Engine Room Vibration of Tugboat 24 M Alamsyah, Alamsyah; Kala, Charles Sambera; Wulandari, Amalia Ika
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 3, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v1i3.23608

Abstract

A tugboat is a ship that guides large ships to dock, helps escort coal barges over bridges and also helps carry out rescues if needed. Some Tugboats had to experience increased engine power because they followed ministerial regulations. When in operation, the tugboat's engine generates the power necessary to move the ship, but on the other hand the engine also produces vibrations. Vibrations that occur on the ship have a side effect that damages the structural resistance of the ship's own construction. The purpose of this study is to find out the value of vibration and noise that occurs on the deck above the engine room due to increased engine power on the Tugboat. The method used is Finite Element Analysis using Ansys software. The results showed that the excitation frequency of the parent machine based on successive rpms was 14.99 Hz, 16.65 Hz, and 18.32 Hz. Based on the calculation of system amplitude, obtained value ranges of 8.73 x 10-10 to 8.25 x 10-10 for 1 machine and 1.14 x 10-9 to 5.65 x 10-10 for 2 machines. Then the standard vibration value is in the range of values 0.00012 to 0.00017 for 1 engine and 0.000652 to 0.000479 for 2 machines. Furthermore, the noise value obtained is in the range of 140.53 dB to 130.88 dB for 1 engine, and 140.68 to 130.75 for 2 engines. All results from calculations regarding vibration standards on the 2 deck models above the engine room get results according to standards, but the resulting noise value exceeds the limit, so it can be concluded that the construction of the engine room and deck is safe from vibration but has excessive noise.

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