International Journal of Marine Engineering Innovation and Research最新文献

{"title":"Effect of Rudder Bulb Installation on Ship Propulsion Performance of Anchor Handling Design VS 491 CD during Towing Barge Operation","authors":"Harifuddin Harifuddin, I Made Ariana, Beny Cahyono","doi":"10.12962/j25481479.v8i3.17703","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.17703","url":null,"abstract":"An anchor handling ship is a ship designed to support offshore operations in the form of handling offshore building anchors and carrying out activities of moving objects such as FPSO, Semi-Submersible Rigs, construction, production, and barges from one place to another where it requires bollard strength. pull which varies depending on the size of the object, besides that it is also to support other activities such as exploration and drilling. The VS 491 design type anchor handling tug supply (AHTS) vessel which has been built by a shipyard in Batam has a maximum bollard pull test of 255 tons. This paper will analyze the propeller thrust, power, and efficiency propeller before and after the installation of the Rudder Bulb (RB) respectively in free-running conditions and towing barge conditions in 50% barge conditions and full loaded capacity, as well as in draft, and Speed on certain Anchor Handling ships. The resistance of the object being towed (towing) will be calculated on the load and speed of each. By using Maxsurf, software Rhinoceros 3D, dan the Numeca CFD, the shape of the ship's hull is produced according to the original. Then validation is carried out by comparing the resistance in the calculation by Maxsurf/Holtrop and the resistance in the calculation by CFD where resulting in a difference of less than 5% so that it can be said that the form of the model is in accordance with the original shape of the ship. Based on the calculation results in the free running conditions of the Anchor Handling ship, the Propulsive Coefficient (Pc) without ESD Rudder-Bulb (RB) at speeds of 10, 12, and 16.36 knots is 0.5162, 0.5407, and 0.5769 respectively, while with ESD-RB each is 0.5008, 0.5417, and 0.5921. Comparison of the Propulsive Coefficient without ESD-RB and with ESD-RB, that at speeds of 12 and 16.36 knots, the Propulsive Coefficient (Pc) increased by 0.19% and 2.58%, respectively, but the Propulsive Coefficient (Pc) decreased by 3.08% at 10 knots. Based on the analysis that has been carried out, it indicates that the installation of the Rudder Bulb (RB) will give an increase in the Propulsive Coefficient (Pc) at speeds of 10 knots and above in free-running conditions, whereas when towing it hardly gives an increase in the Propulsive Coefficient (Pc).","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion Rate Estimation of Passenger Ships Ballast System Pipes","authors":"Mochammad Ricky Dariansyah, Mohammad Danil Arifin","doi":"10.12962/j25481479.v8i3.18651","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.18651","url":null,"abstract":"Corrosion on ships is a common challenge that arises due to the exposure of various metal components to the marine environment. It is a natural electrochemical process that deteriorates the integrity and performance of the ship's structures and equipment over time. The corrosive agents in the marine environment include seawater, humidity, salt spray, chemicals, and microbiological organisms. Corrosion can affect different parts of a ship, such as the hull, ballast tanks, pipelines, propellers, rudders, and various metallic fittings. It can lead to the weakening of structural components, reduced operational efficiency, increased maintenance costs, and even safety hazards. Therefore, it is essential to determine the limitations of the lifespan and efficiency of pipes concerning the influence of corrosion. In this study, the corrosion rate of Galvanized Steel Pipe SCH 40 and Stainless Steel 304 was estimated. The corrosion rate of pipes was evaluated by variating the influence of 3% and 6% salinity and immersion time 240, 360, and 720 hours. The result shows that the corrosion rate tends to increase in higher salinity and immersion time.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis Of the Effect Of Impermeability Test On Laminated Board Systems Bamboo Petung On Ship Shell Material Joints","authors":"Parlindungan Manik, Sarjito Jokosisworo, Tuhfan Jawahiru Basyari","doi":"10.12962/j25481479.v8i3.17275","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.17275","url":null,"abstract":"Wood material is one of the materials in the manufacture of shipAnother alternative is bamboo. Bamboo material plays an important role because bamboo has another advantage of this bamboo, which is lightweight and has a fairly high flexibility. To make a good bamboo board, a strong adhesive and combination of components is needed for shipbuilding. In this study, the type of bamboo used was petung bamboo. The purpose of this study was to determine how the effect of the tightness test on the petung bamboo laminated board system at the ship’s shell material connection and to determine the value of the tightness used to test the petung bamboo laminated board system on the ship's material connection. Meanwhile, the benefit of the research is to provide understanding and insight on various matters relating to the Impermeability Test of the Petung Bamboo Laminated Board System at the Connection of the Vessel Material. The method in this study uses the standard Air Pressure Test which aims to see whether or not it can be applied to bamboo ship building technology. This test uses a pressure ranging from 0.2 psi. The results of this study showed that the vertical joint laminated board showed 140.2 lbf/in2 and 139.4 lbf/in2 while the inclined joint laminate board is 124.4 lbf/in2and 123.8 lbf/in2.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Equivalent Single Layer Approach for Buckling Analysis of Stiffened Panel Under Bi-Axial Compression and Lateral Pressure","authors":"Teguh Putranto, Ardi Nugroho Yulianto, Dedi Budi Purwanto, Dony Setyawan","doi":"10.12962/j25481479.v8i3.18595","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.18595","url":null,"abstract":"Ship structure composed of stiffened plates is subjected to a variety of loading conditions during service, which can lead to buckling. As a result of panel buckling, the overall strength of the ship hull girder is reduced, which is what determines the ultimate strength of the hull girder. The ultimate strength analysis can be accomplished with finite element (FE) simulation, but detailed modeling can be time-consuming. Due to these reasons, it is more advantageous and costeffective to replace the three-dimensional (3D) stiffened panel model with a two-dimensional (2D) equivalent single layer (ESL) plate. This shift from 3D to 2D is premised on the accuracy of ESL in representing the various buckling modes of stiffened panels, which are determined by panel topology and boundary conditions. Therefore, an equivalent single layer plate (ESL) that represents a stiffened panel is evaluated in different buckling modes. Considering that ESL is asymmetric in nature, any modification of the stiffened panel's geometry has a significant effect on the buckling modes. In this paper, we are concerned with two modes of buckling: (i) local buckling within the stiffeners of the plate and web, and (ii) local lateraltorsional buckling within the stiffeners. According to the results, ESL is capable of accurately predicting the effect of local buckling in combination of biaxial compression and lateral pressure.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Planning of a Hybrid Propulsion System for Purse Seine Fishing Vessels in Mayangan, Probolinggo, East Java","authors":"Hadi Prasutiyon, Arif Winarno, Semin Semin, Toto Soeharmono, Erik Sugianto","doi":"10.12962/j25481479.v8i3.15575","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.15575","url":null,"abstract":"The Mayangan Beach Fisheries Port (BFP) in Probolinggo City is a fishing port that was established using a combination of funds from the APBN, APBD of East Java province and APBD of Probolinggo city. Equipped with basic and functional facilities to support various fishing activities, fishing vessels generally use a mechanical propulsion system driven by a diesel engine. The results of the government's decision to increase fuel prices by 8,000 rupiah per liter, were then supported by a survey which showed that fishermen needed as much as 110 liters of fuel for a journey of approximately one hour for one trip, with these conditions making fishermen, especially in the Mayangan district, Probolinggo very objection by increasing the price of fuel that will be used to go to sea, so that with the problems complained of by fishermen on the Mayangan coast, Probolinggo about rising fuel prices, this refers to researchers planning a hybrid propulsion system to reduce consumption of the use of fuel that will be used for purse seine fishing boats. The results showed that the main engine specifications for the Mitsubishi ship were 6D24-Mpt (A) with 228 Kw power, then the Yanmar Ytg 15 Tlv generator, while the electric motor specifications that would be used were Weg Tru Metric 132 Kw / 175 HP, as well as batteries for storing battery energy which had specifications J185-Agm Vrla Agm / Non-Spillable. The difference in fuel consumption in the conventional system and the hybrid system looks quite significant. Using a hybrid propulsion system can produce fuel savings of up to 30% when compared to using a conventional engine.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis Of The Application Of Safety Culture On Motor Sailing Vessels In Supporting Shipping Safety","authors":"Rosnani Rosnani","doi":"10.12962/j25481479.v8i3.18442","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.18442","url":null,"abstract":"Paotere Port is port that plays an important role in the delivery of basic needs to various islands in South Sulawesi. The problems faced by Paotere related to safety aspects include the lack of understanding of safety by the ship and the lack of socialization about safety and applicable rules so that a joint commitment is needed, both regulators, operators and service users to make safety a culture and necessity. The purpose of this study was to determine the application of safety culture by the crew of the shipping vessels in Paotere port in terms of situational and behavioral aspects.The type of research is descriptive quantitative with data collection methods of observation, interviews and questionnaires. Data analysis technique used was descriptive quantitative by using frequency and percentage table distributions to reveal knowledge/understanding of ship crews on safety culture. The results obtained were that the implementation of the situational aspect of safety culture has not been fully implemented, safety equipment and equipment are still lacking and unsuitable for use, from the behavioral aspect the description of the crew's safety culture regarding life safety equipment, work safety and safety signs on board is included in the category still lacking, as well as the lack of safety socialization to ship owners, public shipping companies and ship crews","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134972046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing Injection Molding Parameters to Cycle Time of Bioring Cone Cup Products with Taguchi Method","authors":"Farizi Rachman, Bayu Wiro Karuniawan, Ika Pramestiani, Noorman Rinanto","doi":"10.12962/j25481479.v8i3.18544","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.18544","url":null,"abstract":"At the Sukodono molding company which produces Bioring cone cups using injection molding machines, a trial and error process to obtain parameter setting values on the machine is still applied in the early stages of production. This problem is detrimental to the company because they have to bear the production burden due to production delays. A solution is needed to optimize injection parameters with cycle time response. Therefore, this study proposes an analysis of the application of the Taguchi method by utilizing the signal for noise ratio to determine the influence of factors and also to optimize parameter such as temperature, pressure, and cooling time for the production process. The trial results show that the ideal blend of factors includes injection pressure parameters at level 1 with a value of 80 bar, injection temperature at level 2 in value of 225°C, and cooling time in level one with a value of 0.1 seconds.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lifespan Estimation of Galvanized Steel and Stainless Steel Pipe","authors":"Mohammad Danil Arifin, Mochammad Ricky Dariansyah","doi":"10.12962/j25481479.v8i3.18650","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.18650","url":null,"abstract":"This research presents a comparative study focused on estimating the lifespan of galvanized steel pipes and stainless steel pipes within the context of a ballast system. Ballast systems play a crucial role in maintaining the stability and trim of vessels, making the longevity of the associated piping materials essential for maritime operations. This research aims to provide insights into the corrosion behavior and overall durability of galvanized steel and stainless steel pipes employed in ballast systems. The investigation involves an in-depth analysis of corrosion mechanisms specific to both galvanized steel and stainless steel pipes in the corrosive marine environment. The influence of factors such as salinity, and immersion time is examined. By understanding the distinct corrosion behavior of galvanized steel and stainless steel pipes, maritime industry stakeholders can make informed decisions regarding material selection, maintenance schedules, and potential retrofitting options. Ultimately, the insights gained from this study contribute to the sustainability and operational efficiency of maritime transport by enabling the optimization of ballast system infrastructure. As regulations and environmental considerations evolve, a comprehensive understanding of the lifespan estimation of galvanized steel and stainless steel pipes aids in mitigating potential failures, reducing downtime, and ensuring the safety and reliability of vessel operations. It is shown that the lifespan of stainless steel is longer than that of galvanized pipe.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134971890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of a Mixture of Bioethanol with Octane 92 Fuel on Gasoline Engine Vibration","authors":"Yuniarto Agus Winoko, Hersanda Aditya Pangestu","doi":"10.12962/j25481479.v8i3.17177","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.17177","url":null,"abstract":"Along with technological developments, the system in vehicle engines is also experiencing developments, with the technology embedded in vehicle engines it is hoped that vehicles can become more efficient, powerful, produce low emissions, even vibration and sound produced is very small. This also needs to be supported by using the right fuel. Bioethanol is an alternative fuel made from vegetable and can produce complete combustion. The data collection method is by recording the proportion of the bioethanol mixture with 92 octane fuel and changes in engine speed, when vibrations occur, the LCD vibration meter will display the vibration value. Engine speed starts from 1500 to 8500rpm with a change of 1000rpm each rotation. From the tests carried out, at engine speed of 1500 to 2500 rpm the 5% mixture is a good mixture because the vibration value is lower than before mixing. Then for engine speed of 3500 to 8500 rpm a 10% mixture is a good mixture because the vibration value is lower than before mixing and lower than other mixtures.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135875696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of Thermoelectric Generator for Energy Saving Device Using Exhaust Waste Heat in Patrol Boat","authors":"Yudha Sukma Perdana, Cahya Kusuma","doi":"10.12962/j25481479.v8i3.16249","DOIUrl":"https://doi.org/10.12962/j25481479.v8i3.16249","url":null,"abstract":"This study describes the energy wastage of diesel engines on patrol boats. Patrol boats typically have high speeds and large engines that waste a lot of heat. This research focuses on research on diesel engines as main engines and generators. Diesel engine combustion results in only about 30⁓40% available as mechanical energy. Waste heat energy from combustion that is not used as mechanical energy is released to the environment in the form of exhaust gases. The thermal energy of the exhaust gas from engine combustion inside the patrol boat is wasted and cannot be used. The thermoelectric generator concept converts unusable thermal energy from the exhaust gases into electrical energy that can be used by the patrol vessel. The device setup with series and parallel connections was tested on a patrol boat diesel generator engine. Exhaust heat causes an average engine temperature of 110°C and can produce a voltage of 12.85 volts DC and 5.88 watts of electrical energy when connected in series and a voltage of 1.5 volts when connected in parallel. Produces DC and power with 1.44 watts of energy. By utilizing hitherto neglected engine waste heat, thermoelectric generators are a potential alternative energy harvesting technology with the concept of waste heat energy recovery systems.","PeriodicalId":31582,"journal":{"name":"International Journal of Marine Engineering Innovation and Research","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135875694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}