Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan最新文献

Analysis Of Ship Main Engine Procurement Process In The Shipyard Industry Using Supply Chain Operation Reference Method (SCOR) (Case Study: PT XYZ) 使用供应链运作参考方法 (SCOR) 分析船厂行业的船舶主机采购流程（案例研究：PT XYZ）

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2024-04-01 DOI: 10.14710/kapal.v21i1.60499

Z. Ariany, Adi Kurniawan Yusim, Budi Utomo, Mikhael Fernandus Tampubolon

{"title":"Analysis Of Ship Main Engine Procurement Process In The Shipyard Industry Using Supply Chain Operation Reference Method (SCOR) (Case Study: PT XYZ)","authors":"Z. Ariany, Adi Kurniawan Yusim, Budi Utomo, Mikhael Fernandus Tampubolon","doi":"10.14710/kapal.v21i1.60499","DOIUrl":"https://doi.org/10.14710/kapal.v21i1.60499","url":null,"abstract":"As a sector playing a crucial role in ship construction and repair, the shipbuilding industry faces significant challenges in material procurement, where materials constitute 50-70% of the total project cost. One of the materials requiring paramount attention is the ship's main engine. Effective supply chain management is critical to enhancing efficiency and effectiveness in the procurement process of ship engines. However, supply chain performance measurement research, especially in ship engine procurement, still needs to be improved. Therefore, this study aims to identify relevant performance metrics, analyze critical performance indicators, and provide recommendations based on the SCOR (Supply et al.) framework to improve ship engine procurement. The research results present 24 metrics distributed into four performance attributes based on SCOR 12.0, with 22 selected metrics aligned with the company's context. Analysis using the AHP method indicates that the reliability attribute has the highest weight (0.296), with the metric \"Percentage of procurement received on time as per request\" being the top priority (weight 0.143). This study provides a holistic view of crucial aspects of the ship engine procurement supply chain, supporting companies in enhancing their performance in the procurement process.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"31 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140786576","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}

引用次数: 0

Numerical Investigation on The Open Water Characteristics of B-Series Propeller b系列螺旋桨开阔水域特性的数值研究

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-06-28 DOI: 10.14710/kapal.v20i2.54507

A. Machfudin, A. Dinariyana, Dian Purnama Sari

引用次数: 0

Developed Methodology for Ship Retrofitting (Case Study: RV Baruna Jaya I) 先进的船舶改装方法(案例研究:RV Baruna Jaya I)

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-06-22 DOI: 10.14710/kapal.v20i2.52957

D. Waskito, Ahmad Muhtadi, T. Handoyo, Rio Dwi Sakti Wijaya, Prastya Rizky Ramadhan

{"title":"Developed Methodology for Ship Retrofitting (Case Study: RV Baruna Jaya I)","authors":"D. Waskito, Ahmad Muhtadi, T. Handoyo, Rio Dwi Sakti Wijaya, Prastya Rizky Ramadhan","doi":"10.14710/kapal.v20i2.52957","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.52957","url":null,"abstract":"Ship retrofitting is one alternative solution to extend a ship’s life. Several component replacements were performed in the retrofitting process, remodelings to the ship’s main dimension, and state-of-the-art equipment and technology were added. As one of the ships that require regular renewal, especially in research equipment, retrofit processes are often carried out on research vessels. The current problem in the retrofit process for research vessels, especially in Indonesia, is that retrofits are not carried out with established methodology and planning. Thus, some retrofit projects are limited to major repairs and do not extend the ship’s life or performance. To solve that problem, a developed methodology for ship retrofitting was proposed, which consists of selecting the ship and the type of retrofit and its components, determining retrofit requirements, and designing the ship based on the retrofit project. In the design process, a modified spiral design is explicitly used for the retrofit process with some alterations compared with the conventional one, which is focused on analyzing the suitability and availability of space, consumable and tank requirements, analysis of power requirements, risk analysis, and project execution plan. A case study of this developed methodology has been undertaken in the concept design phase of RV Baruna Jaya 1’s retrofit, and the results show that the methodology is considered helpful as an approach for ship retrofitting. Moreover, several considerations were also obtained from the concept design stage and had to be analyzed at the following design stage to meet the retrofit design requirements.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114778901","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}

引用次数: 0

Performance Analysis of Terminal II of The New Makassar Container Port in Supporting Logistics Distribution in South Sulawesi 南苏拉威西新望加锡集装箱港二期码头配套物流配送绩效分析

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-29 DOI: 10.14710/kapal.v20i2.53548

Riska Damayanti, A. S. Chairunnisa, Esther Sanda Manapa, E. A. Sampetoding, T. Chan, Misliah Idrus

{"title":"Performance Analysis of Terminal II of The New Makassar Container Port in Supporting Logistics Distribution in South Sulawesi","authors":"Riska Damayanti, A. S. Chairunnisa, Esther Sanda Manapa, E. A. Sampetoding, T. Chan, Misliah Idrus","doi":"10.14710/kapal.v20i2.53548","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.53548","url":null,"abstract":"The New Makassar Container Port serves as logistics hub that impacts local economic growth and facilitates the distribution of goods between regions. To optimise port operations, it is crucial to establish connections with the hinterland area. Terminal II is designed to handle the flow of containers. According to the current stage of development, the existing capacity and facilities should be able to handle a larger volume of containers. This study aims to evaluate the performance of the logistics system through time and service performance indicators. The research method involves both qualitative and quantitative approaches, with freight forwarders and shipping companies as the sample population. The analysis involves a descriptive analysis of the logistics system and an Importance Performance Analysis (IPA) to assess performance and satisfaction of service users. The Potential Gain in Customer Value (PGCV) method was used to determine priority areas for improvement. The results show that Terminal II of the New Makassar Container Port performs well and meets the standards set by the Director General of Sea Transportation. However, international shipping services have not been fully utilized, contributing to low container flow and underutilization of the installed capacity. Additionally, export activities remain heavily reliant on commodities instead of industrial goods. The IPA and PGCV analyses revealed that the priority areas of improvement include sustainable and customer-oriented operating processes, with a conformity rate of 79% and the highest PGCV value of 6.22. Regular evaluations of both the physical and human aspects of port operations are necessary.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131516393","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}

引用次数: 0

Design, Construction And Operational Plans Of An Electric Paddle Wheel For A Laminated Bamboo Slats River Cruise Boat 竹板叠层内河游船电动桨轮的设计、制造及运行方案

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-27 DOI: 10.14710/kapal.v20i2.50503

H. Supomo, E. Djatmiko, S. Nugroho, W. Supomo

{"title":"Design, Construction And Operational Plans Of An Electric Paddle Wheel For A Laminated Bamboo Slats River Cruise Boat","authors":"H. Supomo, E. Djatmiko, S. Nugroho, W. Supomo","doi":"10.14710/kapal.v20i2.50503","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.50503","url":null,"abstract":"River cruise tourism in Indonesia has a moderately high potential as there are so many rivers in Indonesia that offer beautiful natural and urban views. However, majority of river cruiser boats still use outboard engines, both two-stroke and four-stroke combustion engines. The working system of the outboard engine is to carry out the combustion process of the fuel oil. This combustion process usually has a loud sound, leading to noise pollutants that can harm the environment and make passengers uncomfortable. Burning fossil fuels also causes the residual compounds that increases environmental pollution, especially carbon emissions. In this paper, an analysis will be carried out on the operational costs of a river cruise ship with electric paddle wheel propulsion. With a boat design with an LOA size of 5.4 m, breadth of 1.4 m, height of 0.8 m, draft of 0.3 m, and CB of 0.68, the paddle wheel diameter is 70 cm, blade width of 30cm, and 6 blades. The motor used to drive the paddle wheel has a power of 672.69 watts, with a battery capacity of 100 Ah. According to operational planning, benefits will be obtained, including zero carbon emissions, no noise and operational benefits can be up to 90% greater when compared to the out-board engine drive.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114077197","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}

引用次数: 0

Selection Of The Best Ship Route For Container Shipping Optimization Models Using Heuristic Algorithms 基于启发式算法的集装箱运输优化模型的最佳航线选择

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-20 DOI: 10.14710/kapal.v20i2.51642

Jon Mangatas Budiarto Sirait, G. Gunawan, A. Utomo

引用次数: 0

Combining Optimum Propeller Design on Roro Ship Re-engine 结合滚装船再发动机螺旋桨优化设计

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-20 DOI: 10.14710/kapal.v20i2.52979

I. M. Arina, A. Iswantoro, Salsabilla Aulia Fitri

{"title":"Combining Optimum Propeller Design on Roro Ship Re-engine","authors":"I. M. Arina, A. Iswantoro, Salsabilla Aulia Fitri","doi":"10.14710/kapal.v20i2.52979","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.52979","url":null,"abstract":"Passenger ships serve several areas in Indonesia, one of which is KMP (Kapal Motor Penumpang) Dharma Rucitra 3. In 2020 this ship had an accident and almost sank, then causing the main engine to submerge. With this problem, it is necessary to repower with the engine provided by the company, by replacing the old engine with a new engine. The new engine namely Yanmar 6N21A SV with a power of 1200 HP at 850 RPM. Initially the ship's speed was 12 knots with the data of Makita GNLH 630M engine with a power of 1300 HP at 375 RPM with a B4-50 propeller. To achieve the desired speed, it is necessary to have an optimal propeller to improve engine performance. In this research, an algorithm has been specially developed to find the optimum propeller design of B-series propellers for KMP Dharma Rucitra 3 by defining the overall parameters of a propeller like diameter, pitch-ratio, blade area ratio and the number of blades. The optimum propeller design is performed as multi-objective function to constraints imposed by propeller parameters. The computer program has been developed to select the optimum propeller by considering the boundary condition of system, hull-propeller interactions, and engine-propeller matching (EPM). This research also carried out open water and self-propulsion simulations using computational fluid dynamics (CFD). Then it can be concluded that the development of an algorithm to optimize the selection of propellers on KMP Dharma Rucitra 3 obtained propellers with B4-49.6 type with a diameter of 1,995 m so that it can reach a speed of 14,2 knots at 85% maximum continuous rating of engine power. ","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125749591","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}

引用次数: 0

The Design Concept of an Electric Amphibious Bus as an Alternative Mass Transportation on Rivers and Roads to Overcome Congestion in the Jabodetabek 电动水陆客车作为河流和道路上替代大众交通工具的设计概念，以克服Jabodetabek的拥堵

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-17 DOI: 10.14710/kapal.v20i2.52229

Ardan Nagra Coutsar, Sovian Aritonang, Sjafrie Sjamsoeddin, Ade Bagdja

{"title":"The Design Concept of an Electric Amphibious Bus as an Alternative Mass Transportation on Rivers and Roads to Overcome Congestion in the Jabodetabek","authors":"Ardan Nagra Coutsar, Sovian Aritonang, Sjafrie Sjamsoeddin, Ade Bagdja","doi":"10.14710/kapal.v20i2.52229","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.52229","url":null,"abstract":"Due to the high growth of vehicles in Jakarta that is not balanced by the growth of roads, the congestion level in Jakarta has been increasing yearly. To overcome the congestion, innovation is needed to utilize the rivers as a means of public transportation. The design uses the spiral design method with a parent design approach. The calculations carried out include the calculation of resistance, calculation of motor power requirements, calculation of longitudinal strength, calculation of construction, calculation of weight, hydrostatic calculation, stability calculation and seakeeping calculation on water vehicles. As for road vehicles, the calculations carried out include wind drag calculation, rolling resistance calculation, incline force calculation, total resistance calculation, torque calculation and electric power calculation. As a result of the calculations and iterations carried out, the technical specifications of the amphibious bus are obtained, including a length of 12.0 m, breadth of 3.0 m, depth of 3.0 and draught of 0.8 m. This bus is equipped with three movers of waterjet propulsion connected to electric motors with a power of 710 kW each. This bus can carry 51 people with one driver. This bus has good stability when in the water under empty and full load conditions with a level of comfort that meets ISO standards. In addition, this bus can operate up to 359 km for water distances and 501 km for land distances at 40 km/h for water and 60 km/h for land for one battery charging. This bus can also run with a maximum angle of up to 30 degrees.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128780825","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}

引用次数: 0

Prioritization of Research Vessel Lubricating Oil System Equipment for Maintenance Purpose Using Failure Mode Effect and Criticality Analysis (FMECA) Method. Study Case: RV. Baruna Jaya 基于失效模式效应和临界分析(FMECA)方法的科研船润滑油系统设备维修优先排序研究案例:RV。Baruna Jaya

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-17 DOI: 10.14710/kapal.v20i2.52700

T. Handoyo, D. W. Handani, Agus Sudaryanto, D. F. Prasetyo

{"title":"Prioritization of Research Vessel Lubricating Oil System Equipment for Maintenance Purpose Using Failure Mode Effect and Criticality Analysis (FMECA) Method. Study Case: RV. Baruna Jaya","authors":"T. Handoyo, D. W. Handani, Agus Sudaryanto, D. F. Prasetyo","doi":"10.14710/kapal.v20i2.52700","DOIUrl":"https://doi.org/10.14710/kapal.v20i2.52700","url":null,"abstract":"Alongside the program, which requires research vessel operation, RV Baruna Jaya is needed to fill that requirement fully. RV Baruna Jaya reported many failures during the previous mission. Some failures need emergency maintenance. One of them is the problem with the lubricating oil system. The lubrication system of an engine supplies of lubricating oil to the various moving parts of the engine. Its main function is to form an oil film between moving parts, which reduces friction and wear. The lubricating oil is also used as a cleaner and, in some engines, as a coolant. During the survey Ina-TEWS in 2021, RV Baruna Jaya was ordered due high temperature of The Lubricating Oil System. The temperature exceeded the normal value, and due to safety considerations, the ME needed to be shut down. Because of this problem, the survey carried out by RV Baruna Jaya was delayed. So, it is important to maintain a lubricating oil system. In this analysis, to maintain the function and performance of the lubricating oil system, the FMECA is carried out. By prioritizing the lubricating oil system equipment using FMEA and Criticality Analysis, 6 pieces of equipment with 24 failure modes should be maintained. These equipment are lubricating oil cooler, lubricating oil pump, engine service oil tank, engine reserve oil tank, Engine lubricating oil standby pump, and lubricating oil transfer pump. The maintenance task is proposed to minimize the occurrence of failure mode, which could possibly happen in the equipment.","PeriodicalId":396367,"journal":{"name":"Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122168500","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}

引用次数: 0

Experimental Investigation on the Characteristics of Pitch Motion for a Novel SPAR–type FOWT in Regular Waves 一种新型spar型FOWT在规则波中俯仰运动特性的实验研究

Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Pub Date : 2023-05-12 DOI: 10.14710/kapal.v20i2.52191

F. M. Assidiq, D. Paroka, H. Palippui, H. Hidayatullah, Muhammad Fajar Fitra Ramadan

引用次数: 0