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Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim
Published by Universitas Maritim AMNI Semarang
ISSN : 29635012     EISSN : 29635454     DOI : 10.58192
Core Subject : Engineering,
Engineering Mechanical Engineering
Menyambut baik kiriman yang memberikan wawasan tentang masalah terkini dan utama yang berhubungan dengan ilmu Teknik dan Teknologi Maritim. Artikel bisa ditulis dalam bahasa Inggris atau bahasa Indonesia.
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 126 Documents
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Analisis Kekuatan Hasil Las Backing Ceramic Pada Proses Pengelasan Fcaw Material Baja Karbon A36 Muhammad Alfi Rachmawan; Erifive Pranatal
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 2 (2023): Juni : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i2.1150

Abstract

Welding is an important thing in shipbuilding. There are several types of joints and types of materials with different material thicknesses, on of which is Flux Cored Arc Welding (FCAW). FCAW is a welding process that has a high level of productivity so that it is suitable for fabrication activities. Double-sided welding is often performed on joints. This causes time inefficiencies and costs quite a lot. Therefore, the solution so that welding is only done on one side, by using a backing ceramic. The Backing Ceramic is used to hold the welding penetration better and get better welding result. The purpose of this study was to determine the result of the strength of Backing Ceramic Weld on FCAW welding of A36 carbon steel material so that it can get perfect results, not defective and can be accepted according to the desired criteria.
Redesain Kemasan Produk Aneka Keripik Menggunakan Metode Kansei Engineering Di Desa Pesanggrahan Kesugihan Anisha Dian Iswahyuni; Aji Kusumastuti Hendrawan
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1151

Abstract

Pesanggrahan Village, Kesugihan District, is one of the innovation villages launched by the Cilacap district government in 2022. The Kesugihan area has potential local food sources that have the potential to be developed by the community. Nuri Snack is one of the business actors engaged in food processing in the form of various chips in the form of cassava, taro and banana chips. Marketing that has been carried out at this time is selling to markets and serving purchases at home, there has been no innovation in expanding marketing to modern shops and online shops. The aims of this study were 1) to design informative packaging labels in accordance with labeling standards and 2) to develop packaging designs according to the wishes of consumers using the kansei engineering method. The method used is the kansei engineering method which translates consumer feelings into design specifications. Implementation The results of this study are in the form of label and packaging design concepts, design actors include uniqueness, product identity colors, complete product information, complete packaging information, neat, protected products, easy to carry, easy to store, have licensing and attractive designs, and the proposed packaging uses white standing pouch window doff 500z packaging with size 14cm x 23cm and chromo sticker as packaging label design. Conclusion The proposed label design already has permits and has an elegant design and is made of standing pouch plastic with a ziplock.
Analisis Pengaruh Misalignment Terhadap Vibrasi Dan Kinerja Shaft Propeller Pada Kapal Bantu Rumah Sakit (BRS) 2 Yogi Pratama; Erifive Pranatal
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1152

Abstract

Vibration due to misalignment of the propeller shaft is detected using the VA-12 Vibration Analyzer sensor which is equipped with a Piezoelectric Accelerometer PV-571. Vibration measurements are carried out in alignment and misalignment conditions. The VA-12 Vibration Analyzer detection tool displays the results of the Vibration signal. Must be protected against the vibrations generated. Vibration signal analysis is done by looking at or observing the signal amplitude and signal frequency with two conditions of alignment and misalignment. The VA-12 Vibration Analyzer is used to analyze vibration signals and then convert them to Fast Fourier Transform (FFT) and Wavelet Transform (WT). In this analysis, a comparison of vibrations is carried out during alignment and misalignment conditions.
Strategi Pengembangan Kawasan Wisata Pantai Lombang Kabupaten Sumenep Mohammad Zainul Arief
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1153

Abstract

Sumenep Regency has cultural diversity, which is supported by a culture of social life that is different from other districts in Madura. In accordance with government policy in developing tourism, especially in Sumenep Regency, it is necessary to have a guideline for a directed and integrated development plan. Tourist objects that are interesting to visit besides being good attractions also need an orderly and neat arrangement, especially from a physical point of view. In addition, the need for tour packages that are supported by travel agencies, travel agent services, and tour guides. In this study "Strategy for Development of the Lombang Beach Tourism Area, Sumenep Regency" uses SWOT ( Strength , Weakness, Opportunity and Threat ) analysis as an effort to solve problems using a quantitative approach with the type of research in the form of case studies. The Lombang Beach tourism development strategy is seen from the internal factors which are still dominant in having weaknesses in Lombang beach tourism objects, so the stability strategy is the current choice, namely reducing the weak factors gradually according to the existing priority criteria so that the weaknesses disappear and turn into strength. While the internal factors that become strengths must be maintained.
Kajian Optimasi Pengoperasian Waduk Malahayu Kecamantan Banjarharjo, Kabupaten Brebes Bambang Laras Media; Abdul Latif N; Wahudin Diantoro; Abdul Khamid
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1154

Abstract

Malahayu Reservoir is located in Malahayu Village, Banjarharjo District, Brebes Regency. Malahayu Reservoir was built in 1935. Malahayu Reservoir is planned to have a water storage capacity of 69 million m³ with a water surface area of 9.25 km². The main purpose of the construction of this reservoir is to supply irrigation water with a total area of 12,674 Ha, consisting of DI Kabuyutan of 4,166 Ha, DI Jengkelok of 6,173 Ha, and DI Babakan of 2,335 Ha. However, the water supply in Malahayu Reservoir continues to decrease, allegedly due to the high amount of sediment. The current problem is the occurrence of sediment in the Malahayu Reservoir. The pattern of operation using this reservoir needs to be studied because it is considered less optimal and because there needs to be a review of the use of reservoir water using newer data. That way, an operating pattern is needed to determine the reliability of reservoirs in their use as irrigation water providers. This study began by analyzing the secondary data obtained. Data is processed to obtain the amount of reservoir discharge and water needs for irrigation water. And the study ended with a simulation of the reservoir operation pattern. From the results of this study, it is expected to help provide solutions for the operation pattern of Malahayu Reservoir as an optimal reservoir. To improve the performance of the Malahayu Reservoir, supporting data such as reservoir operational systems and performance, hydrological data, reservoir operating procedures and patterns, and irrigation data are needed. The results of the analysis showed that the operation of the Malahayu Reservoir was less than optimal. Simulation of reservoir operation shows that the volume of water in Malahayu Reservoir is below the Minimum Operating Level (MOL), which is the minimum volume of water that should be in the reservoir. According to the records of the Cimanuk-Cisanggarung River Basin Center (BBWS), the condition of water supply in the Malahayu Reservoir continues to decline since this reservoir was built during the Dutch colonial rule until now.
Analisis Uji Lentur Beton SCC Dengan Menggunakan Pasir Cilopang Dendi Yogaswara; Virdi Muhamad
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1156

Abstract

Self-compacting concrete (SCC) is self-flowing concrete that can be printed on formwork with very little or no compaction. One of them is by adding admixture superplasticizer. The purpose of this research is to determine the effect of superplasticizer admixture with various variations on flexural strength. The method used in this research is the experiment of adding superplasticizer admixture to the concrete mixture with variations of 3%, 4% and 5%. The sample was made of 3 test objects in the form of blocks with dimensions of 15 cm x 20 cm x 100 cm for a design value of 15 MPa. Based on the results of the flexural strength test of concrete beams after 28 days of flexural strength testing, the highest yield was obtained in the second sample of 4% mixture with a maximum P load of 32.2 KN after converting to 18.22 MPa. Whereas for the 1st sample it was a 3% mixture with a maximum P load of 22 KN after converting to 12.44 MPa and for the 3rd sample it was a 5% mixture with a maximum P load of 22.9 KN after converting it to 12.95 MPa. 3. It was found that the average of the 3 samples was 14.54 MPa, a little more to exceed the target of 15 MPa.
Perancangan Kapal Perikanan Dengan Alat Tangkap Gillnet Di Karangsong Indramayu Jawa Barat Novi Hendri; Erifive Pranatal
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 2 (2023): Juni : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i2.1157

Abstract

Ships have an important role in fishing operations, because ships are an aspect that determines success in the fishing proses. In order for a gillnet vessel to operate properly, it must have a large length, moderate width, and small draft height because these three values are the main values for ship dimensions. In designing fishing vessels, there are several stages, namely calculating the main dimensions, making lines plan, and calculate the resistance experienced by the ship. This study aims to determine the main dimensions of fishing vessels from gross tonnage in the Karangsong area, as well as to draw a line plan for the main sizes of fishing vessels and determine the resistance of vessels at their service speed. This research was conducted in the Karangsong Indramayu area from March to June 2023. The results of the research on the main sizes of fishing vessels with gillnets are L= 18,1 m, B= 4,6 m, D= 1,8 m, service speed boats designed to range from 0 to 12 knots using the holtrop method, the drag at a speed of 6 knots is 2,5 kN, at a speed of 9 knots is a 16,1 kN, and at a speed of 12 knots it is 49,3 kN.
Designing Of The Ngalah Data Electric Car Frame Using The Finite Element Method Rifky Zaidani; Mochamad Mas’ud
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1158

Abstract

The development of fossil fuel transportation continues to increase massively every time, and this condition is terrible news for the environment worldwide because the impact of gas emissions produced from burning fossil fuels is quite damaging to the environment. For this reason, based on the problems above, every country, including Indonesia, needs to contribute to maintaining and caring for environmental conditions from the threat of damage caused by pollution from burning fossil fuels. One of the efforts made by the Indonesian government to overcome this is to develop electric vehicles in collaboration with KEMRISTEK through the Indonesian Electric Car Championship (KMLI) event, which involves universities in Indonesia. One of the main parts of an electric car is the frame or chassis; for this reason, the author tries to design the best Frame for an electric car. Other leading factors such as the value of Stress, Deformation, and Factor of Safety, the method researchers use in this study is the Finite Element Method. The results showed that the frame did not fail and could meet the safety standards that the author had set.
Penilaian Keselamatan Kontruksi pada Pekerjaan Tunnelling dengan Memanfaatkan Foto Kontruksi Proyek Pembangunan Bendungan Manikin Koko Heru Satmoko; Achmad Djunaedi; Fitri Nugraheni
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 3 (2023): September : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i3.1161

Abstract

Tunneling construction is important to get more attention because considering the magnitude of the risks from this work such as the instability of the carrying capacity of the soil around the construction which can cause collapse during dredging or installation of tunneling walls, or and other problems such as lack of oxygen intake for workers who are carrying out tunneling excavations , the presence of toxic and flammable gases, or falling objects that can result in minor accidents or even death. The purpose of this study is to make a visual assessment through certain media (photos/videos) that can be done quickly regarding the existing conditions of the environment/work, whether the work carried out meets work safety standards, work safety regulations and so on. Rapid assessment can assume that what happened in the field at that time was a reflection of previous work. From the results of the study there were 58 variables which were divided into 4 main variables which were assessed based on the WBS and 26 photos of the environment of the Manikin Dam Tunneling development project taken from several sides. Calculations were made using the results of data from 6 informants, resulting in a P(H | Ecomb) value of 0.932 or a probability of 93.2%, which means that the tunnel work according to the 6 informants was carried out safely. The final value obtained from the analysis is almost close to 1 and all the results of the analysis from the 6 informants are more than 67%.
Penilaian Risiko K3 Pekerjaan Enclosed Space Entry Pada Kapal Km. Sabuk Nusantara 40 Menggunakan Metode Job Safety Analysis Dan Bow Tie Risk Assesment Jumrotin Nisa Lestari; Minto Basuki
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 1 (2023): Maret : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i1.1166

Abstract

Work accidents that occur on ships often occur in various cases, one of which is a work accident that occurs in an enclosed space. This is often experienced by a crew member who is unable to understand the proper methods and procedures for working in an enclosed space. Against this background, the researcher conducted a risk assessment of personal safety when working in an enclosed space to find out the causes, impacts and controls of the crew members' lack of understanding and knowledge of personal safety when working in an enclosed space. In this descriptive study using the Job Safety Analysis (JSA) method and the Bowtie method, the researchers obtained very high/extreme (E) scores in carrying out work in closed spaces, namely the ship's crew inhaled poisoned air/gas while checking in the cofferdam tank where these results obtained an likelihood value of 66% and a severity value of 71%. By holding routine drills regarding the application of safety principles in an enclosed space in more detail to all Ship's Crew and at the end of the drill closing displays a training video that displays shows about various accidents that occurred in an enclosed space and the causes of these events are reviewed in detail. So with a more detailed drill on the application of safety principles regarding enclosed space material to all Ship's Crew, it is hoped that it can minimize the occurrence of work accidents in an enclosed space.

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