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Journal articles on the topic 'Ship maintenance management'
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1
Simion, Dragoș. "Maintenance onboard ships using computer maintenance management system." Scientific Bulletin of Naval Academy XXIII, no. 1 (July 15, 2020): 134–41. http://dx.doi.org/10.21279/1454-864x-20-i1-017.
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The importance and the role of the maintenance process are based on keeping the equipment and systems in an operative state of readiness. On the other hand, the knowledge of legislative framework, as well as the learning the practical skills lead to the successful application of the maintenance programs within the organizations. Regarding these aspects, the present paper addresses the topic of maintenance onboard ships. The general legislative framework for management and execution of the maintenance process specific to the maritime domain is presented, as well as the methods implemented onboard ships. It is described how to perform the maintenance of the equipment for a special ship using a computer maintenace management softwere. The study takes into account the constructive features, the equipment and the missions of the ship.
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Oke, S. A., O. E. Charles-Owaba, and A. E. Oluleye. "Preventive Maintenance Scheduling." International Journal of Operations Research and Information Systems 4, no. 2 (April 2013): 69–94. http://dx.doi.org/10.4018/joris.2013040105.
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In this work, the effectiveness of preventive maintenance scheduling (PMS) decisions was reported based on a techno-economic model that reflects cost objective function for ship maintenance activities. With a potential to impact on both transportation businesses and users of transportation services, the model provides an alternative to the combined classical literature problems of spare-parts inventory management and control, failure prediction and reliability. The PMS model developed incorporates separate and combined functions of indirect, direct and factor maintenance costs. Idleness period for various formulated schedules are evaluated and compared. First, a general form of the preventive maintenance cost function incorporating unit cost of maintaining ships, a set of cost function parameters and variables was developed. The operations research framework for the problem is then applied to obtain test cases in which cost parameter(s) was/were used for scheduling decisions. Monte Carlo simulation is applied to generate additional test problems. Practical data were used to validate the model. For each problem, optimal schedules based on one to four cost parameters were determined. For each schedule, the total maintenance cost, cost of idleness, total ship idle period and total ship operation period were computed under inflation, opportunity and combined opportunity and inflation and compared with the values corresponding to maintenance cost parameter using t-test (p<0.05). Thus, the use of combined data from maintenance, opportunity and inflation for preventive maintenance scheduling of a fleet of ships is more effective than direct maintenance cost approach.
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Prasutiyon, Hadi, and Firdaus Dedy Kurniawan. "Analisa Pengaruh Pemeliharaan Machinery Dari Annual Survey Ke Intermediate Survey Dengan Menerapkan Maintanance Management System." Justek : Jurnal Sains dan Teknologi 4, no. 1 (May 4, 2021): 01. http://dx.doi.org/10.31764/justek.v4i1.4476.
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Abstract: In the field of shipping, maintenance of ships needs to be done to maintain the durability of the ship so that the life time is long so that the level of smooth productivity is not disturbed due to damage to the ship. Apart from that, regular surveys are also conducted to check the condition of the ship as well as to collect data on ships in the class. Ship maintenance in ensuring the implementation of the planned maintenance system (PMS) on the ship must meet the requirements. The survey studied in this study is about maintenance methods that are considered inaccurate in selecting the method of maintaining machinery and not applying a management which has an impact on work effectiveness. The research method used is a periodic survey method accompanied by implementing a Maintenance Management System tailored to the needs of the company. So that there are two main studies, namely the Annual Survey System and the Intermediate Survey System. This is to determine the right method for the company in calculating in terms of material, cost and time as well as maintenance management for each activity in order to create more effective work.Abstrak: Pada bidang perkapalan perawatan kapal perlu dilakukan untuk mempertahankan ketahanan kapal agar life time nya lama sehingga tingkat produktifitas lancar tidak terganggu akibat adanya kerusakan pada kapal. Selain itu juga dilakukan survey secara berkala untuk pengecekan kondisi kapal sekaligus pendataan kapal pada kelas. Perawatan kapal dalam menjamin terlaksananya pelaksanaan sistem pemeliharaan terencana (PMS, Planned Maintenance System) di kapal harus memenuhi persyaratan. Survey yang dikaji dalam penelitian ini adalah mengenai metode pemeliharaan yang dianggap belum tepat dalam pemilihan metode pemeliharaan machinery dan tidak diterapkanya sebuah management yang berdampak kepada efektivitas kerja. Metode penelitian yang digunakan adalah metode survey periodik disertai dengan menerapkan Maintenance Management System yang disesuaikan dengan kebutuhan perusahaan. Sehingga didapat dua kajian utama yakni Annual Survey System dan Intermediate Survey System. Hal ini untuk mengetahui metode yang tepat bagi perusahaan dalam menghitung dari segi material, biaya dan waktu serta pengelolaan pemeliharaan pada setiap kegiatan agar tercipta pekerjaan yang lebih efektif.
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Stazić, Ladislav. "Revisions of the SMS maintenance procedures based on computerized PMS data." Scientific Bulletin of Naval Academy XXIII, no. 1 (July 15, 2020): 166–70. http://dx.doi.org/10.21279/1454-864x-20-i1-021.
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According to the International Safety Management Code, every cargo ships of 500 gross tons and over must establish Ship Safety Management System that is documented in a Safety Management Manual. This document is prepared by the Company and contains rules regarding maintenance of the equipment, particularly recognized critical equipment. Those rules must be included into ship’s Planned Maintenance System, another requirement of the ISM Code. Maintenance periods in rules are based on several factors, while the Company experience in the operation and maintenance of the ship and its machinery and equipment is emphasized and analyzed in this paper. Analysis of records from different Computerized Planned Maintenance Systems obtained from several companies show that each company implemented their experience in the system. At the same time, the results show that very few modification of machinery maintenance intervals have been made with the proactive approach based on acquired experience and new knowledge.
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Premur, Vitomir, Aleksandra Anić Vučinić, Ivana Melnjak, and Lucija Radetić. "Challenges and possibilities for environmentally sound recycling of ships and composite boats in European union." Holistic approach to environment 9, no. 2 (June 24, 2019): 35–43. http://dx.doi.org/10.33765/thate.9.2.3.
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In this paper are presented challenges that countries of European Union face when recycling ships and composite boats. European ship owners control over 40 % of the world’s merchant ship fleet, with Greece as the top ship-owning country globally. Nowadays, ship recycling is being regulated and positive progression was made towards it since steel industry belongs in world’s top five and stable market and makes recycling of scrap metals from ships attractive. On the other hand, yachts, sailing boats and small boats are mainly made from composite materials because of their favourable properties, making them great investment, but end-of-life management is more complicated and not quite regulated by the law yet. Unlike commercially oriented ships, which are constantly in move and disposed when the maintenance costs of the vessel start to exceed possible revenue, old boats for recreational and tourism-oriented purposes most rarely move. Hundreds of thousands lie in marinas and are abandoned due to the maintenance costs thus discouraging the owners from keeping it. Hence, a growing number of marinas worldwide will have the problem of boat disposal in a sustainable way in the future. In this paper is given short summary on waste ships and boats management issues. The emphasis is on waste management of small composite boats
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Emil, Manea. "Using regression theory to solve some problems regarding ship repairing and maintenance activities in shipyards." Scientific Bulletin of Naval Academy XXIII, no. 2 (December 15, 2020): 153–60. http://dx.doi.org/10.21279/1454-864x-20-i2-020.
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The owners will always try to reduce the ships maintenance works timeframe clearly aimed at reducing the period during which the ship has no income. In turn, the shipyard also will try to reduce the timeframe for the maintenace works carried out on board of the drydocked ships and alongside berths, clearly aimed at revenue maximizing by contracting a larger number of ships for drydocking. The objective was to find a method (using regression theory) for the ships drydocking and/or berthed maintenance works carried out in the shiprepairs shipyards time frame that exploits the information held by the shipyard in their maintenance and repairs works portfolio performed for various customers over time.
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Dinariyana, AAB, Pande Pramudya Deva, and I. Made Ariana. "DEVELOPMENT OF MODEL-DRIVEN DECISION SUPPORT SYSTEM TO SCHEDULE UNDERWATER HULL CLEANING." Brodogradnja 73, no. 3 (July 1, 2022): 21–37. http://dx.doi.org/10.21278/brod73302.
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Maritime industries are constantly searching for a method to enhance ship efficiency, with increasing concern about the environmental impact and rising fuel prices. Marine biofouling is one of the factors that increase ship fuel consumption. However, removing the fouling of the ship requires effort for hull maintenance. Due to the trade-off between conducting maintenance and performance degradation, this study presents the development of a Model-Driven Decision Support System (MD-DSS) to predict the optimum time for underwater hull cleaning for biofouling management. Five stages (sub-models) are employed to develop a DSS, namely: ship resistance estimation, estimation of additional resistance due to biofouling, an iterative-based method for determining the best time to conduct the hull cleaning, and an analysis report. The implemented algorithm was validated by comparing its result with a manually scheduled maintenance date. The DSS is able to determine the best time (date) for maintenance in all given scenarios. By giving two scenarios of different maintenance costs and different fuel prices, the optimisation results produce the same number of maintenances. Within 60 months, four to five hull cleanings are required. It is also found that when the optimal number of maintenances is known, then increasing this number will not have any impact on reducing the hull cleaning costs because the reduction in fouling does not significantly reduce the costs incurred for maintenance. During several trials of the DSS, it is shown that the system can generate maintenance schedules for different time intervals of ship operation within an acceptable time. It takes approximately 52 minutes, 12 minutes, and 5 minutes consecutively to determine the maintenance schedules for ship operation intervals of 5 years, 2.5 years, and 1 year.
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Wahyuni, Tri Iriani Eka, Prasadja Ricardianto, Anis Harits, Muhammad Thamrin, Esti Liana, Dian Christopher Anggara, Zaenal Abidin, Tri Mulyani Setyowati, Sugiyanto Sugiyanto, and Endri Endri. "The implementation of minimum service standards on ship operational performance: Empirical evidence from Indonesia." Uncertain Supply Chain Management 10, no. 4 (2022): 1297–304. http://dx.doi.org/10.5267/j.uscm.2022.7.010.
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The purpose of this study was to determine the effect of ship worthiness and seafarers' skills on improving ship operational performance through minimum service standards. Some early indications found in the field, such as the low performance of ship maintenance by procedures, and the obstacles in implementing the ship maintenance plan due to the inefficiency of the ship's operating schedule. This study uses Path Analysis with Path Coefficients Sub Structure 1 and Sub Structure 2. The test method used for the direct effect is the regression method while the indirect effect is the Sobel test. The number of samples is 80 respondents from national shipping companies, from various types of ships, namely, crew boats, patrol boats, utility boats, supply vessels, and anchor handling towing supply. The results of the study indicate that there is a positive and significant effect of seaworthiness and seafarers' skills on increasing ship operational performance, directly or indirectly through minimum service standards. The minimum service standard variable can mediate the indirect effect of the seafarers' skill and ship worthiness variables on the operational performance of the ship. To meet the growing customer satisfaction as the consequences of tight competition, it is necessary to improve the quality of the fleet where durability, cleanliness of the fleet, and safety facilities in the fleet are expected to provide a high guarantee for safety.
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Kwon, Kihyon, and Dan M. Frangopol. "Fatigue Life Assessment and Lifetime Management of Aluminum Ships Using Life-Cycle Optimization." Journal of Ship Research 56, no. 02 (June 1, 2012): 91–105. http://dx.doi.org/10.5957/jsr.2012.56.2.91.
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The development of aluminum ship structures has been promoted in the context of the rapid evolution of high-speed and light-weight vessels. Under the repeated and/or fluctuating application of stresses during voyages, fatigue damage of structural ship members is accumulated. For this reason, fatigue reliability analysis has to be conducted for assessing and predicting lifetime performance of aluminum ships. This assessment offers the opportunity to optimally perform the lifetime ship structural management planning. To allocate limited financial resources required to balance the lifetime reliability of ship structural details and the life-cycle cost, single-or multi-objective optimization can be used. The multi-objective optimization problem has several competing objectives such as:(minimizing the life-cycle maintenance cost,maximizing the fatigue reliability of details with welded attachments, andminimizing the fatigue damage. The S-N (stress vs. number of cycles) approach and available sea loading information are used to evaluate the time-dependent fatigue reliability. In this paper, the estimated fatigue reliability is incorporated into a life-cycle cost optimization problem to find the optimal inspection and repair interventions. The proposed approach is illustrated on an aluminum ship detail.
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Ahluwalia, Rashpal, and Denis Pinha. "Decision Support System for Production Planning in the Ship Repair Industry." Industrial and Systems Engineering Review 2, no. 1 (July 8, 2014): 52–61. http://dx.doi.org/10.37266/iser.2014v2i1.pp52-61.
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All ships and offshore platforms, however large or small, undergo scheduled or unscheduled repair and maintenance. The bidding process for ship repair jobs is highly competitive and global in scope. The ship repair industry is also prone to significant risks due to high level of capital investment in skilled labor, specialized equipment, and facilities such as dry docks. Several decision support tools have been utilized by the ship repair and maintenance industry with limited success. The focus of these tools is on mid or long-term planning. They view the system as various cost centers and attempt to minimize cost at each center. This paper proposes a decision support system for short term planning. It is oriented towards day to day decision making by ship yard personnel. Its focus is on enhancing system throughput and minimizing total cost. It utilizes a common corporate database to store and retrieve information and to generate timely reports for the management. By focusing on system throughput and overall cost, unnecessary internal completion between cost centers can be avoided, resulting in fewer delays and resource overloading.
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Kurniawan, Henry, Trika Pitana, and Nurhadi Siswantoro. "Risk-Based Integrity Management System of Oil Tanker Hull Structure due to Corrosion." Key Engineering Materials 940 (January 30, 2023): 121–29. http://dx.doi.org/10.4028/p-3z2t4s.
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The ship hull construction suffers a decrease in strength performance over its life cycle due to corrosion and fatigue. Therefore, the risk of structural failure also rises during the extended service life if maintenance is not performed properly. The budget, on the other hand, limits these activities. As a result, it is critical for ship owners to plan an optimal maintenance program. The idea of this research is to find the best way to keep the hull's structural integrity due to corrosion. A time dependent corrosion model has been developed for failure prediction purposes, based on the historical data of plate thickness reduction. Failure scenarios are carried out on local, global and fatigue strength. This research adopted a semi-quantitative risk assessment along with reliability analysis to give strategic maintenance planning by lowering the risks that would be encountered. Hence, ensuring uninterrupted service of the ship throughout the service life. Finally, this study will be very useful as reference to establish risk informed program to evaluate the risk level of components of hull that guides to adjust inspection intervals without avoiding safety requirements.
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Zhang, Wenjun, and Yingjun Zhang. "Navigation Risk Assessment of Autonomous Ships Based on Entropy–TOPSIS–Coupling Coordination Model." Journal of Marine Science and Engineering 11, no. 2 (February 15, 2023): 422. http://dx.doi.org/10.3390/jmse11020422.
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An autonomous ship refers to a ship that achieves autonomous operation in ship navigation, management, maintenance, cargo transportation and other aspects. Due to the uncertainty in the risks posed by autonomous ship navigation, its risk assessment attracts great attention from researchers. By analyzing the historical accident statistics, this paper gives a comprehensive analysis from the perspective of “Man-Ship-Environment-Management”. In addition, a quantitative evaluation method based on the Entropy–TOPSIS–Coupling coordination model is proposed, which presents a comprehensive assessment of the risks of autonomous ship navigation safety. Furthermore, scientific forecasts and suggestions for improvement are put forward according to the evaluation results.
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Feng, Lei. "Development and Implementation of Ship Maintenance Management Spot Inspection Information System." Applied Mechanics and Materials 644-650 (September 2014): 6233–37. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.6233.
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A engineering ship as the object, This paper analyzed the application of equipment Inspection, and discussed the PDCA management system, developed a set of spot inspection Information system based on the web server application & intelligent mobile terminal application which has the current system better regulated. Introduced the development background, expounded the system structure, functions and technology solutions, and discussed the main functions of the system design scheme.
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Chen, Jing. "IOT Monitoring System for Ship Operation Management Based on YOLOv3 Algorithm." Journal of Control Science and Engineering 2022 (June 29, 2022): 1–7. http://dx.doi.org/10.1155/2022/2408550.
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Combined with the YOLOv3 algorithm, the Darknet network developed on the Internet of Things offers boat maintenance, design, and deployment to meet the needs of developing and implementing the Internet of Things-based ship management. System maintenance was completed, solving the problem of care and identifying the vessels in the water important for care. Based on this, the YOLOv3 algorithm has been reported to achieve the target thinking based on the global data map, and the target area thinking and the distribution plan need to be set into a standard neural network. Add a penalty for fixing the boat to different parts of the system together. Binarily divide the needs by a set of logistic regression, allowing rapid tracking and identification of goals in high-risk situations. Experimental results show that the average validation rate of this study’ standard is 89.5% at 30 frames per second. Compared with traditional and in-depth training, this data algorithm is not only more practical and accurate but also more efficient in learning algorithms and various environments. The switches are more flexible and can control multiple ships and their essentials.
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Yue, S. P., T. Y. Chua, and J. W. Fan. "DigiShip - Digitalisation of ship operations." Journal of Physics: Conference Series 2311, no. 1 (July 1, 2022): 012001. http://dx.doi.org/10.1088/1742-6596/2311/1/012001.
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Abstract Platform machineries and sensors onboard the vessel necessary for ship operations are connected to ST Engineering’s NERVA Ship Management System and Sensemaking System (SMS2) to remotely control and monitor platform machineries and sensors from the bridge, or monitored from an operator station on the shore. A case study on remote connection to the shore command centre for a tugboat established using local telco’s 4.5G network with operations in the coastal waters of Singapore is discussed. A systematic approach for security assessment of the NERVA SMS2 is also discussed. Threat modelling and risk assessment for major systems are done using STRIDE and HEAVENS methodologies respectively. With platform systems and sensors connected to NERVA, sensors data collected can be analyzed via the predictive maintenance function of NERVA SMS2 to reduce the vessel’s life-cycle cost. NERVA SMS2 performs advanced analytics on the collected sensors data, providing predictive diagnostics information, which predicts potential machinery failure before it happen, which can greatly reduce unplanned downtime. In addition, there is decision support for maintenance, which are aligned with OEM recommendations, guiding the maintenance operator on part that need to be replaced or serviced based on the analysed symptoms reflected through the data.
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Van Oosterhout, Daniel, and Cees Bil. "Modifying Maintenance Practices within a Maritime Support Solution from a Cultural Perspective." Journal of Industrial Integration and Management 02, no. 01 (March 2017): 1750005. http://dx.doi.org/10.1142/s2424862217500051.
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Maintenance culture is a critical factor in sea power delivery and is embedded throughout all aspects of the maritime support solution. Preliminary research suggests that Royal Australian Navy (RAN) maintenance staff and civilian support organizations do not hold positive attitudes towards asset management. As a result, there is evidence that maintenance culture should be defined and improved. However there are no adequate instruments available to measure this gap in culture and attitude within the RAN, or their associated support organizations. Hence the intent of this research is to validate the theory of a poor maintenance culture across all facets of the RAN ship maintenance support solution. Maintenance culture has for too long been about maintaining ships rather than maintaining ship’s reliability (also known as conducting maintenance for the sake of conducting maintenance). This paper investigates asset maintenance support solutions leveraging experience from alternative industry to augment the culture towards maintaining naval assets.
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Liu, Luyuan. "Design of the Comprehensive Monitoring System of Ro-Ro Ship Power Plant Based on LabVIEW." Journal of Physics: Conference Series 2254, no. 1 (April 1, 2022): 012037. http://dx.doi.org/10.1088/1742-6596/2254/1/012037.
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Abstract In this paper, using power machinery monitoring technology, testing technology, signal analysis and processing technology, combined with the characteristics of the dual-engine and double-propeller arrangement, carrying, complex waters and variable operating conditions of the power unit of the ro-ro ship, a set of virtual instruments is designed for the power of the ro-ro ship. Device integrated monitoring system. The system has a complete set of comprehensive monitoring system, which can monitor the power output working status of the power unit of the ro-ro ship. Under different working conditions, the system can collect and analyse signals through sensors, and automatically obtain information such as combustion work in the cylinder, gearbox gear transmission and meshing, shaft trajectory dynamic vibration and shaft power, and is a monitoring platform for marine power plants. The development and intelligent cabin provide technical support. The system realizes the automatic monitoring of ships, effectively improves the safety and reliability of ship operations, and reduces and avoids the occurrence of major accidents. At the same time, it has also completed the integration and digitization of ship power plant monitoring, providing support for decision-making in the use, operation and control, maintenance, and management of equipment and systems, effectively improving the safety and reliability of ship operations, and further promoting the development of smart ships and smart engine rooms.
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Blatchley, Charles, Joseph Connors, and Anthony Vecino. "An Integrated Approach to Shipboard System and Equipment Testing for Improved Maintenance Management." Marine Technology and SNAME News 26, no. 02 (April 1, 1989): 105–19. http://dx.doi.org/10.5957/mt1.1989.26.2.105.
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Commercial operators today are required to maintain maximum vessels in-service levels and, with government vessel operators competing for decreasing operating funds, the management of ship maintenance and repair (M&R) has become a highly visible area which can have a significant impact on overall vessel operating costs. As an approach to consolidate, improve, and simply better manage a vessel's state of material condition and M&R requirements, an integrated shipboard Material Condition Assessment Program can be implemented which provides a comprehensive evaluation and assessment of the various critical components on a ship-specific basis. This approach will integrate all vessel material condition assessment techniques and periodic surveys whose results can be used for advanced maintenance planning and budgeting. The approach and methodology employed and described in this paper are not new, having been tried and proven to varying degrees in the marine and related industrial fields, and are considered within the constraints of day-to-day vessel operation and maintenance management.
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Wilkins, James R. "Zone-Oriented Drawings for Life-Cycle Management." Journal of Ship Production 5, no. 02 (May 1, 1989): 126–34. http://dx.doi.org/10.5957/jsp.1989.5.2.126.
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ABSTRACT This paper presents the results of a study conducted to determine whether unit-oriented construction drawings, which are being developed and used by shipbuilders using modern zone-oriented, or modular, construction techniques, will satisfactorily substitute for system-oriented detailed arrangement drawings in the Navy's life-cycle maintenance management process. The study concluded that modular construction drawings will provide the necessary data in a more usable format, and thus are the preferred approach for the Navy's use. However, the study also identified several additionally needed features that are not now being provided in unit-oriented drawings, but which must be included in order to meet the needs of planning and maintenance activities during the operational life of a ship. A number of other observations about drawing use and maintenance are provided.
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Deris, Safaai, Sigeru Omatu, Hiroshi Ohta, Lt Cdr Shaharudin Kutar, and Pathiah Abd Samat. "Ship maintenance scheduling by genetic algorithm and constraint-based reasoning." European Journal of Operational Research 112, no. 3 (February 1999): 489–502. http://dx.doi.org/10.1016/s0377-2217(97)00399-8.
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Manea, M. G., R. Zăgan, and E. Manea. "The importance of the technical specification of works for the ships repair processes in the maritime shipyards." IOP Conference Series: Materials Science and Engineering 1182, no. 1 (October 1, 2021): 012042. http://dx.doi.org/10.1088/1757-899x/1182/1/012042.
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Abstract The technical specification purpose is to include the ship maintenance and improvement works needed to be carried out onboard in a repair shipyard, so that after these works performing to allow for the classification society certification, thus confirming the ship satisfactory technical condition and the relevant requirements of the classification rules were applied, thus confirming the applied management maintenance also. The technical specification has a very important role for the evaluations, done by the shipyard in preparing price and time quotation and the owner / manager, done for the comparison analyzing based on the evidence that the maintenance and improvement workflows performing on board the ship in a shipyard for works depend on the technical specification quality of preparation, which means that had to provide the necessary information in relation to the volume and type of works needed to be carried to the ship hull and structures, machinery, equipment, plants and systems supported by the necessary technical information plans approved by the classification society and the works sheets documentation referring to the followings: work location / equipment thereof number of pieces; types of the works required to be performed on location / equipment; works estimated required to be undertaken on location / equipment. The advantage of a quality technical specification is the limitation of the possibility of ordering additional works during the execution of works for maintenance, upkeeping and improvements on board the shipyard, the costs of the shipyard and the ship being thus maintained at the estimated budgets. The paper purpose is to highlight the advantages of a good quality technical specifications which consists of limiting the possible means of developing additional orders during the execution of maintenance and improvement works on board, thus the shipyard and ship costs being possible to be kept within the original estimated budget margins.
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Khondoker, M. R. Hasan, and K. R. Hasan. "Waste management of a maritime port-the case of Mongla port authority." Journal of Naval Architecture and Marine Engineering 17, no. 2 (December 30, 2020): 219–30. http://dx.doi.org/10.3329/jname.v17i2.48925.
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During voyage of a ship from one port to another, different types of wastes generated due to operation of the ship and livelihood of the crews, which fall under the scope of international convention for the prevention of pollution from ships, MARPOL 73/78. It is seen that almost 1000 nos. of ships are calling in to Mongla port every year which is gradually increasing day by day. However, there is no waste management system in the port now. IMO has recognized that provisions of proper wastes collection vessel as well as oil spill management vessel and reception facilities are crucial for effective MARPOL implementation in the maritime port. In view of the same, the feasibility of establishment of a standard and modern waste management system for Mongla port has been studied. First of all, amount of different types of wastes sourced from the shipping operation at the port of Mongla has been estimated following standard procedure and to facilitate the necessary services to incoming ships, a proposal has been made to procure a waste collection vessel, oil spill collection vessels and port reception and treatment facilities by Mongla Port Authority along with other necessary vessels and equipment. The procurement, operation and maintenance costs as well as revenue to be collected from the incoming ships for wastes quantities, alternative uses of the vessels and facilities and earnings from selling the product of the treatment have been examined. It is found from the study that the investment is technically, financially and economically viable.
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Altosole, Marco, Ugo Campora, Michele Martelli, and Massimo Figari. "Performance Decay Analysis of a Marine Gas Turbine Propulsion System." Journal of Ship Research 58, no. 03 (September 1, 2014): 117–29. http://dx.doi.org/10.5957/jsr.2014.58.3.117.
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Marine propulsion plants are designed to be more and more efficient to minimize fuel consumption and pollution emissions. However, during the ship operating life, propulsion components and hull are characterized by a certain performance decay, responsible for a worse behavior of the overall propulsion plant. For this reason, the several propulsion components are periodically subjected to expensive maintenance works to restore, as far as possible, their original design characteristics. In the present study, the propulsive performance variation of a naval vessel, powered by a gas turbine as part of an innovative CODLAG system, is simulated and analyzed by means of a detailed and validated numerical code. A sensitivity analysis regarding the influence of the main components deterioration (gas turbine, propellers, and ship hull) on the overall behavior of the propulsion plant is carried out. Several speed profiles of the vessel have been analyzed in terms of the usual performance parameters (ship speed, engine power, and fuel consumption) as well as the pollution emissions of the gas turbine. The main aim of the work is to get useful information for the ship management and maintenance scheduling (condition-based maintenance).
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Nuchturee, Chalermkiat, Tie Li, and Hongpu Xia. "Design of Cost-Effective and Emission-Aware Power Plant System for Integrated Electric Propulsion Ships." Journal of Marine Science and Engineering 9, no. 7 (June 22, 2021): 684. http://dx.doi.org/10.3390/jmse9070684.
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Extensive electrification of ship power systems appears to be a promising measure to meet stringent environmental requirements. The concept is to enable ship power management to allocate loads in response to load variations in an optimal manner. From a broader design perspective, the reliability of machinery operation is also of importance, especially with regard to the failure cost from power outages. In this paper, an approach for determining optimal power plants based on economic and environmental perspectives across several architecture choices is proposed. The design procedure involves the implementation of metaheuristic optimization to minimize fuel consumption and emissions released, while maintenance and repair services can be extracted using reliability assessment tools. The simulation results demonstrated that ship power management using the whale optimization algorithm (WOA) was able to reduce fuel consumption and corresponding emissions in a range from 4.04–8.86%, varying with the profiles, by eliminating inefficient working generators and distributing loads for the rest to the nearest possible energy-saving areas. There was also a trade-off between maintenance service and overall system expenses. Finally, a compromise solution was sought with the proposed holistic design for contradictory cost components by taking into account fuel operation consumption, shore electricity supply, maintenance service and investment expenditure.
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Lazakis, Iraklis, Osman Turan, and Seref Aksu. "Increasing ship operational reliability through the implementation of a holistic maintenance management strategy." Ships and Offshore Structures 5, no. 4 (October 19, 2010): 337–57. http://dx.doi.org/10.1080/17445302.2010.480899.
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陈, 国安. "The Application of Cybernetics and Dissipative Structure Theory in Ship Maintenance Inventory Management." Dynamical Systems and Control 09, no. 01 (2020): 10–21. http://dx.doi.org/10.12677/dsc.2020.91002.
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Fontes, Jassiel V. H., Paulo R. R. de Almeida, Harlysson W. S. Maia, Irving D. Hernández, Claudio A. Rodríguez, Rodolfo Silva, Edgar Mendoza, Paulo T. T. Esperança, Ricardo Almeida Sanches, and Said Mounsif. "Marine Accidents in the Brazilian Amazon: The Problems and Challenges in the Initiatives for Their Prevention Focused on Passenger Ships." Sustainability 15, no. 1 (December 25, 2022): 328. http://dx.doi.org/10.3390/su15010328.
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The Brazilian Amazon is part of one of the largest river systems in the world, in which the transport of cargo and passengers is commonplace. However, several accidents still occur to passenger ships, causing fatalities. Transportation occurs commonly in remote regions, where there are transport inequalities, and emergency assistance is hard to find. This can affect sustainability in communities with considerable levels of economic and social vulnerability. More information is needed about accidents involving inland transport in the Amazon, to identify the threats to ships and propose strategies for accident prevention. This paper addresses the main problems that long-distance passenger ships face in the Brazilian Amazon, presenting an integrated framework towards accident prevention. First, the present situation is characterized in terms of ship description, spatial distribution, and regulations that are applicable. Next, possible causes of passenger ship accidents are discussed, including topics of concern that should be considered in the Amazon waterways. Finally, measures to help minimize passenger ship accidents are proposed, and the social relevance is discussed. It was found that accidents in the Amazon are due to a combination of human and environmental factors. Stakeholders should strengthen the technical and legal training of ship operators. The use of new technologies for navigational aid and necessary maintenance of ships is suggested. Marine accident prevention initiatives should consider local conditions, such as environmental preservation, cultural respect, and difficulties related to navigation through the complex riverine system of the Amazon region.
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Handoyo, T., D. W. Handani, A. Sudaryanto, and T. H. Nugroho. "Design of Real-Time Monitoring System for Performance Parameter and Alarm of Main Engine RV. Baruna Jaya III." IOP Conference Series: Earth and Environmental Science 1081, no. 1 (September 1, 2022): 012024. http://dx.doi.org/10.1088/1755-1315/1081/1/012024.
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Abstract With the increasing age of RV. Baruna Jaya III (30 years), the ships often face various problems. The continuous operation of the engine causes a decrease in its performance which eventually results in the failure of the main engine. For instance, damage to the main engine can stop operating of the ship at sea which eventually have various impacts on ship and life safety as well as operational cost. In this context, efforts to manage ships especially for the operation of main engine and its prevention from errors through real time monitoring and control system have become a major issue. This study aims to design a monitoring and alarm system for the main engine performance on the RV. Baruna Jaya III as the preliminary step for the development of the overall monitoring system. As a result, a design for data acquisition of the main engine performance parameters in real time and the design of a ship’s main engine failure alarm system have been developed using PLC-based design technology and a SCADA-based monitoring system. This system can be thus further built for the performance of the ship’s main engine, as part of management ship operations and maintenance policies.
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Sarjito, Aris. "PT Pelindo Marine Service: An Alternative Strategy for Maintenance of the Indonesian Navy’s Warships." Mediterranean Journal of Social Sciences 11, no. 4 (July 10, 2020): 27. http://dx.doi.org/10.36941/mjss-2020-0038.
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The sea defense strategy, and concepts related to maritime strategy, relating to the overall strategy for achieving victory at sea. In securing the sea, the navy is very dependent on the main weapons system, especially warships. The Indonesian Navy in carrying out its duties rests on the strength of the IFWS (Integrated Fleet Weapons System): Warship, Aircraft, Marines, and Base. The four components of the IFWS are always maintained in combat readiness. One of the ship maintenance facilities in Surabaya that has the potential to be able to carry out maintenance of Navy ships is PT Pelindo Marine Service in Surabaya. This research uses descriptive qualitative approach. Logistics management theory and SWOT analysis are used by researchers as an analysis tool. The results of this study are the logistics management of PT PMS has ability to maintain Navy ships to support sea defense. Constraints faced by PT PMS include: (1) High sedimentation; (2) Inlet flow is crowded, narrow and shallow; and (4) Small dock capacity. The strategies developed by PT PMS to overcome obstacles in the maintenance of the navy’s ships: (1) Implement efficiency in HR, methods, budgets, and infrastructure to maximize profits; (2) Cooperation with similar companies; (3) Investing: dredging, increasing the capacity of the dockyard, and firefighting equipment, and damage control (controlling losses) so it does not get worse than expected.
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Lu, Mengqiao, Shuyu Li, and Meilin Wen. "Types of Maintenance Based on Uncertain Data Envelope Analysis." Symmetry 14, no. 7 (July 12, 2022): 1429. http://dx.doi.org/10.3390/sym14071429.
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Nowadays, one of the main challenges of marine maintenance is how to select an optimum maintenance strategy for each component of the complex ship machinery system. The uncertainty of the parameters is one of the main difficulties encountered. For example, engineers and experts are always questioning the credibility and integrity of the data collected, and historical maintenance records may also be lost during maintenance. The above data asymmetry will also lead to parameter uncertainty, which directly affects the accuracy of the prediction results. This paper proposes a method for determining maintenance types of ship equipment based on uncertainty theory and the Data Envelopment Analysis (DEA) model. Firstly, this paper constructs an uncertain maintenance optimization model (UMOM) based on the classic Data Envelopment Analysis model. Then, we converted the UMOM into an equivalent deterministic model for easy calculation by the uncertainty theory. Finally, a case study is given to verify this model. The results will conclude that the UMOM can meet the need for a reasonable classification of maintenance types of mechanical equipment in a marine system and provide valuable information for systemic management and storage.
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Geir, Geoffrey, and Geir Lund. "Dry-Dock Inspection Methods for Improved Fouling Control Coating Performance." Journal of Ship Production and Design 32, no. 03 (August 1, 2016): 186–93. http://dx.doi.org/10.5957/jspd.2016.32.3.186.
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Dry docking is the scheduled time when the fouling control coating is assessed, the hull refurbished, and new coatings applied. The decisions made during this period will affect the performance of the ship for several years. Royal Caribbean Cruises Ltd. has funded research at the Florida Institute of Technology to develop a strategy to improve the selection, application, and management of ship hull coatings. The purpose of the research was threefold: establish an in-house baseline of performance to improve selection, maintenance, and life cycle costs of the different commercially available coatings; improve quality control of dry-dock procedures to include surface preparation and coating application; and insure that the ships are operating in compliance with both local and international regulations. The paper will present the methods that are available to measure specific aspects of the dry-dock process and how this data may be used for quality control and coating selection.
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Fruytier, Pierre-Andre M., and Arun Kr Dev. "Predicting Ship Maintenance and Repair Labor with Artificial Neural Networks." Journal of Ship Production and Design 38, no. 01 (October 22, 2021): 9–18. http://dx.doi.org/10.5957/jspd.10200027.
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Ship maintenance and repair work cost estimation is often regarded as an “Art,” which may contribute to the financial success or distress of a shipyard. Regarded as experts by senior management, estimators are among the most valued resources, and nonetheless, human. Over time, estimators learn from mistakes, and get better with tenure at sharpening assessments. When estimators retire without having groomed an apprentice, shipyards may be at risk of losing a lot of know-how, all at once. These shipyards may well find very costly to experience, for a while, estimating skills stepping back on the learning curve. Yet, even shipyards relying on less advanced information technology may have unwittingly accumulated a lot of valuable data relevant to ship maintenance and repair works. These shipyards may overlook how easily accessible knowledge can be turned into a competitive advantage through predictive analytics. Not only can this data be literally mined, but machine learning algorithms, such as Artificial Neural Networks (ANN), can now process it for a speedy and preliminary estimate through faster and cheaper computing power. To be clear, the purpose is not to replace the human estimator but to help the expert quickly assess, when times are busy, whether to bid or not on a specific project opportunity. In the absence of The Master Estimator, an Apprentice may also look for a quick and cheap sanity check of the prepared estimate before submitting a bid. The study carried out in this article is based on all ship maintenance and repair data recorded at a single North American shipyard over the last 19 years since the current information systems were implemented. This raw data extract with all directly paid hours logged daily by workers on 1277 ship maintenance and repair projects was screened through advanced data cleansing. To enrich the cleansed data tables, additional independent variables were subsequently collected internally and externally to develop a training–testing data set. The final 657 projects represent 136 vessels regrouped in eight types, for which 28 other independent variables were all made available for training up to testing simple ANN models. The scope of this article is limited to the estimation of the direct labor required to complete ship maintenance and repair projects on a specific type of vessels for which workforce planning and tactical pricing was deemed the most relevant to keep the business afloat.
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崔, 庆伟. "Application of Ship Automatic Identification System in Submarine Cable Operation and Maintenance." Advances in Energy and Power Engineering 10, no. 02 (2022): 38–47. http://dx.doi.org/10.12677/aepe.2022.102006.
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Melnyk, Oleksiy Mykolayovych, Andriy Oleksandrovych Voloshin, Oleg Anatoliyovych Onishchenko, Olha Vasilivna Shcherbina, Nadiia Vasilivna Vasalatii, and Petro Volodymyrovych Nykytyuk. "INFORMATION SECURITY ARRANGEMENTS OF SEAGOING SHIP." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 201 (September 30, 2022): 69–78. http://dx.doi.org/10.18664/1994-7852.201.2022.267758.
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Security of modern transport ships is primarily related to the protection of informationfrom unauthorized access and prevention of leakage. Every shipowner, by protecting theconfidentiality of data, not only reduces the risk and possible losses from its leakage, but alsoincreases the level of trust in the eyes of its customers and partners. The quality and quantity changes,which have taken place in recent years on seagoing vessels, have significantly contributed to thesafety of their operation and the smooth running of their operations. Modern ship navigation isheavily dependent on information support, which is an important element in ship handling processes.New marine digital information systems are being deployed based on digital data exchange, to ensurenavigational safety. This allows immediate processing of summaries of information for thefunctioning of the ship's navigation systems. In addition, these systems provide the ability to exclude the decision-making process for ship management based on incomplete or unreliable information andrequire the maintenance of special measures to ensure its safety. Therefore, the task in the sphere ofcyber security in maritime transport is the development of means of protection of informationresources of the vessel, which is one of the first and urgent. Given these factors and the currentsituation, the international maritime organization has developed and adopted a number of maritimeindustry security documents that are designed to address a number of provisions and issues relatedto cybersecurity of ship and ship operations. The purpose of this article is to analyze main factorsinfluencing ship's information security. And on the basis of the presented conceptual model of shipsecurity the main factors influencing the information security of the ship are identified.
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Barsocchi, Paolo, Erina Ferro, Davide La Rosa, Atieh Mahroo, and Daniele Spoladore. "E-Cabin: A Software Architecture for Passenger Comfort and Cruise Ship Management." Sensors 19, no. 22 (November 15, 2019): 4978. http://dx.doi.org/10.3390/s19224978.
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A cruise ship is a concentrate of technologies aimed at providing passengers with the best leisure experience. As tourism in the cruise sector increases, ship owners turned their attention towards novel Internet of things solutions able, from one hand, to provide passengers with personalized and comfortable new services and, from the other hand, to enable energy saving behaviors and a smart management of the vessel equipment. This paper introduces the E-Cabin system, a software architecture that leverages sensor networks and reasoning techniques and allows a customized cabin indoor comfort. The E-Cabin architecture is scalable and easily extendible; sensor networks can be added or removed, rules can be added to/changed in the reasoner software, and new services can be supported based on the analysis of the collected data, without altering the system architecture. The system also allows the ship manager to monitor each cabin status though a simple and intuitive dashboard, thus providing useful insights enabling a smart scheduling of maintenance activities, energy saving, and security issues detection. This work delves into the E-Cabin’s system architecture and provides some usability tests to measure the dashboard’s efficacy.
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Fan, Ning Yang, and Xiao Ping Liu. "Safe Speed in Bridge Area and Impact Determination for Pier." Applied Mechanics and Materials 253-255 (December 2012): 2064–70. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.2064.
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The safe speed in bridge area and the security of the bridge’s structure is a technical and a management issue; it should pay highly attention in terms of design, maintenance, and operation and management. The point of the shipping departments and the bridge designing departments for reference in two distinguished aspects are discussed when it comes into the problems of the speed in bridge area. The conception of “safe speed in bridge area” is based on current impact determination for pier and the study of safe speed at home and abroad. The ship adopted the safe shipping speed in bridge area and can meet the requirements of the safe navigation demanded by the shipping departments, and its velocity value can provide reference for the bridge designing in terms of anti-collision. The practical experiment on super large bridge in Changzhutan intercity railway and the ship model test on navigation show that the presentation of safe speed in bridge area ships was a relatively scientific method, and the presentation can provide new idea on solving contradiction between the construction of the bridge and the navigation part.
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Kawamura, Y., and Y. Sumi. "Information System for Structural Integrity of Ships." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 219, no. 2 (June 1, 2005): 93–106. http://dx.doi.org/10.1243/147509005x10422.
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The maintenance of ship structures is very important to avoid serious casualties such as oil spill from tankers. For this reason, it is necessary to detect and evaluate the state of the damages properly. In this paper, a new concept of an information system for structural integrity of ships is proposed in order to improve the safety and to assess the condition of structural strength in service. In this system, all information of damages in a certain ship obtained from hull surveys is managed in an information database, allowing assessments to be made at any time in the ship's life of the present structural integrity status or provisions to be made for the future. By using the proposed concept it becomes possible to provide a valuable tool for repair management and planning. One of the advantages of this concept is that reasonable and advanced assessment of an aged ship is readily achievable by using the information about damages and the three-dimensional structural data stored in the database. Based on the proposed concept, a prototype system for the evaluation of corrosion damages is developed by using the STEP (standard for the exchange of product model data) technologies with the proposal of a data model of the information system. Also, a method for the import of ship structural data into the database is studied for practical development of the system. Moreover, a framework for the generation of analysis models for strength of aged ships is proposed, by which labour saving is possible using a generating analysis model. The validity of the effectiveness of the proposed concept is shown with some examples.
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Pancorbo Crespo, Jaime, Luis Guerrero Gómez, and Javier Gonzalez Arias. "The "Digital twin". Digitization process from the point of view of a classification society." Ciencia y tecnología de buques 13, no. 26 (January 30, 2020): 19–28. http://dx.doi.org/10.25043/19098642.194.
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The process of digitalization in our society is undeniable and unstoppable and ships are adapting more and more to this new environment. This offers great advantages, since ships can send/receive all the information on all aspects of their current status (allowing more efficient management during the ship's life and even opening the door to autonomous navigation), but this presents a number of intrinsic difficulties due to their connected state (cybersecurity). All the above will be developed with a massive sensorization of the ships, which will indicate their condition, going from a reactive maintenance to a predictive maintenance. This requires the figure of the digital twin, which digitally represents the physical reality of the ship, and which will be a single source of information for all actors.
This digital twin opens the door to "Digital Classification" by Bureau Veritas, in which traditional 2D plans are no longer necessary, but work is done directly in 3D on the Digital Twin. Bureau Veritas, as a reference classification society, has adapted to the current situation of the industry, favoring the digitalization process in all its aspects.
The objective of this article is to present the current state and foreseeable evolution of the technology leading to the Digital Twin concept, its implications in the design and maintenance of ships, all from the point of view of a Classification Society while exemplifying the digitalization process of a Classification Society in different aspects.
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Sharma, R., and Kim Tae-wan. "Development of a Logic-Based Product Life-Cycle Management (LBPLM) System for Shipbuilding Industry—Conceptual Development." Journal of Ship Production and Design 26, no. 04 (November 1, 2010): 231–51. http://dx.doi.org/10.5957/jspd.2010.26.4.231.
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Product life-cycle management (PLM) has become something like "a magic wand" for various industries because of its capability to integrate different product modules via online network through the product's complete life cycle and hence to provide one-window access, thereby making the whole processes of product conception, design, manufacturing, delivery, maintenance, and disposal integrated with a reduction in product development time and cost. However, heavy industries (i.e., shipbuilding and shipbreaking) are different from consumer product industries because of high customization in design process and engineering software, widely varying scales of operations, and less compatibility between different design and production processes, for example, ship production is planned in activity-driven network scheduling system, in general, and is assumed to be more of a construction process or assembly process rather than a production process. In this paper, we present the conceptual development and the basic building concepts for a logic-based PLM system for the shipbuilding industry. Our logic bases consist of modularization, standardization, geographical zoning, and functional zoning. The logic bases of modularization and standardization are used in the ship design and production processes, and the logic bases of geographical zoning and functional zoning are used in "logically grouping" the on-board activities in the ship production process. Overall, this paper introduces a logic-driven methodology for PLM: planning and integration of ship design and production processes. Finally, in our implementation we show that by developing a logic-based PLM system the ship design and production processes become more streamlined and better planned and executed.
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Adamkiewicz, Andrzej, Marek Bartoszewski, and Martin Kendra. "Analysis of Consequences of Using Gas Fuels for Running Auxiliary Ship Boilers in the Light of Contemporary Environmental Protection Requirements." Management Systems in Production Engineering 23, no. 3 (September 1, 2016): 183–90. http://dx.doi.org/10.2478/mspe-07-03-2016.
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Abstract The article justifies the application of gas fuels for supplying auxiliary ship boilers. It presents legal regulations on maritime environmental protection areas and their requirements which are in power. It shows the chronology of introduced limitations on sulphur and nitrogen dioxide emissions and thresholds of carbon dioxide emission reduction expressed by EEDI (Energy Efficiency Design Indicator) and EEOI (Energy Efficiency Operational Indicator). Ways to decrease the values of EEDI and EEOI in the ship energy effectiveness management have been shown. Consequences of replacing marine fuels with LNG for running auxiliary ship boilers have been considered thoroughly, taking into account ecological, constructional, operational, procedural and logistic limitations as well as economic consequences. The summary shows the influence of particular consequences of using LNG for running boilers on the methods of maintenance of auxiliary boilers.
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Vedachalam, Narayanaswamy. "Assessment of the Technological Maturity of Marine Autonomous Surface Ships." Marine Technology Society Journal 56, no. 4 (August 23, 2022): 43–58. http://dx.doi.org/10.4031/mtsj.56.4.16.
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Abstract Marine Autonomous Surface Ships (MASS) are gaining increasing attention due to the potential benefits of improving safety and efficiency. The paper presents the trends in the development of autonomous ships and reliability modeling carried out to assess the maturity of Guidance, Navigation, Control, Power and Propulsion (GNCPP) subsystems that are critical for safe and reliable operation of MASS. Based on the simulations with field-failure data as inputs, it is identified that a typical vessel GNCPP system can have a mean time to fail period of 1.2 years. The emergency shore support systems shall require a proof test interval of 22 days to comply with IEC61508 HSE Safety Integrity Level 3 of on-demand availability. The results could help in efficient maintenance planning and integrity management of the autonomous ship systems. The efforts required to realize situation-aware autonomous navigation technologies complying with stringent operational regulatory frameworks are also discussed.
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Widyantoro, Muhamad, Agus Subardi, and Dori. "Pengaruh Kerusakan Jack Hydraulic di Atas Kapal." Dinamika Bahari 1, no. 1 (May 29, 2020): 45–52. http://dx.doi.org/10.46484/db.v1i1.183.
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Sea transportation is seen as the most effective means of responding to the high demand for a commodity. The development of industry 4.0 and society 5.0 has a big influence on the economic growth of a country. Loading and unloading must go well, so efforts are needed to ensure its implementation. Delay in unloading due to hydraulic leakage. The captain and guard officer as more experienced parties are expected to make efforts to prevent it. Coordinating work when unloading shows that the ship has followed procedures and efforts to repair hydraulic leaks. The method used by researchers to analyze problems is the fishbone analysis method. Research data obtained from primary data and secondary data, while data collection was obtained from observations, interviews, descriptive and literature. Fishbone analysis aims as an effort made to change the data from the results of a study into simpler information, so that it is easy to use to draw conclusions. Based on the results of this study, hydraulic maintenance was further improved and procurement of spare parts continued to be pursued by the ship. In addition, the company's management also affects the performance of the crew on the ship so that there is a need for improvement in the company's management of the ship.
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Ikawa, Hiromasa, Takashi Miwa, and Ryuichi Kimura. "Techniques to Prevent Misunderstandings in Ship Machinery Maintenance -A Questionnaire Survey about the Bolt Tightening Management." Marine Engineering 48, no. 2 (2013): 212–17. http://dx.doi.org/10.5988/jime.48.212.
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Sahan, V. V. "Pedagogical conditions of professional readiness formation of future officers to the of the military (ship) economy maintenance in subdivisions of the State border service of Ukraine." ScientifiScientific Herald of Sivershchyna. Series: Education. Social and Behavioural Sciences 2021, no. 2 (November 1, 2021): 152–70. http://dx.doi.org/10.32755/sjeducation.2021.02.152.
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The purpose of the article – substantiation of pedagogical conditions of readiness of future officers for conducting military (ship) economy in divisions of the State Penitentiary Service of Ukraine. Methodology. Analysis, conversation, observation, testing, comparison of practical experience and theoretical knowledge, independent characteristics. Results. The article defines and substantiates the pedagogical conditions of future officers to conduct military (ship) economy in the subvisions of the State Border Guard Service of Ukraine. The defined pedagogical conditions are able to provide high-quality preparation of cadets for conducting military (ship) economy in divisions of the State frontier service of Ukraine. The methods of observation, questionnaires, study of pedagogical documentation, independent characteristics were used in the work. Practical implications. Developed and substantiated pedagogical conditions for the formation of professional readiness of future officers for military (ship) economy in the subvisions of the State Border Guard Service of Ukraine create a set of ways to improve the process of training future officers for military (ship) economy. Substantiated pedagogical conditions lay the foundation for improving the training of future officers to conduct military (ship) economy in the units of the State Border Guard Service of Ukraine. Value. The pedagogical conditions of formation of professional readiness of future officers in the subvisions of the State Border Guard Service of Ukraine are defined and substantiated: activation of value-motivational attitude of cadets to studying of features and the organization of military (ship) economy in divisions of the State Border Guard Service of Ukraine; selection and structuring of the content of training material taking into account the current requirements for the military (ship) economy, reforming the organizational and staffing structure of the State Border Guard Service of Ukraine (changes in the structure of disciplines, training, special courses, electives, etc.) taking into account the experience of NATO countries; acquisition of skills and abilities by future officers on the basis of contextual training with the use of the potential of military internship and training practice; professional development/self-development of scientific and pedagogical workers on logistics, as well as – creation of information and educational environment for effective formation of cadets’ necessary skills and abilities for organization and management of military (ship) economy in the State Border Guard Service of Ukraine, motivation of in-depth study logistics of the border department. Key words: organization, military (ship) economy, subdivisions of the State Border Guard Service of Ukraine, pedagogical conditions, provision.
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Cheng, Zhiping, Eric Tan, Minbo Cai, and Allan Ross Magee. "Concept design of a digital twin architecture for ship structural health management." Journal of Physics: Conference Series 2311, no. 1 (July 1, 2022): 012010. http://dx.doi.org/10.1088/1742-6596/2311/1/012010.
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Abstract Ocean-going vessels frequently experience severe weather conditions. Occasionally, the actual environmental loads are much larger than design values, resulting in deviations from design conditions that may cause serious structural damage. A structural digital twin can enhance predictability and reliability of marine structures, and thus provide vessel operators, owners, and stakeholders with a more accurate overview of a vessel’s condition. It can also help reduce lifecycle costs through proposing rational and optimal inspection, maintenance, repair programs, and assist on maximizing service life and mission availability. This paper uses a benchmark vessel to investigate structural behaviors of the vessel through dynamic loading approach. The correlation between structure members and critical responses are established, and high stress concentration areas have been identified. Subsequently, this paper develops a conceptual digital twin architecture. The proposed digital twin predicts responses of the entire structure to measured or predicted environmental conditions with a hybrid model combining numerical simulations with measurements. While the traditional structural monitoring system focuses on the health condition of typical hot spots, the proposed digital twin may improve structural health awareness of the entire hull structure based on a limited number of sensors.
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Reeve, Henry P., and Robert G. Bea. "SQIS: A Framework for the Development and Implementation of an Industry-Wide Ship Quality Information System." Marine Technology and SNAME News 36, no. 02 (April 1, 1999): 92–101. http://dx.doi.org/10.5957/mt1.1999.36.2.92.
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The Ship Structural Integrity Information System Phase III (SSIIS III) Project presents the framework for the development of an Industry-Wide Ship Quality Information System (SQIS) for use in the United States oil tanker trade. This full-scope, life-cycle, industry-wide information system provides the basis for the development of risk based inspection, maintenance, and repair (IMR) activity management tools, intended to supplement those in development by industry members. The SQIS combines information concerning structures, machinery, and operations, and provides analysis of the links between all facets of vessel management. The cooperation of all sectors of the marine community is paramount to the successful implementation of a Industry-Wide SQIS. The recommendations and requirements of interested parties have been incorporated into the development of the SQIS framework. The organizational requirements for the development and implementation of the full scale Industry-Wide SQIS have been identified.
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Rana, Anil. "Optimal maintenance level of equipment with multiple components." Journal of Quality in Maintenance Engineering 22, no. 2 (May 9, 2016): 180–87. http://dx.doi.org/10.1108/jqme-07-2014-0043.
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Purpose – The purpose of the paper is to provide a method for selection of an optimum level of repair by replacement of an equipment based on its cost. In a ship where the engineer has a vast variety of equipment and systems to operate and maintain within limited time frames and availability of human resources, it is often difficult to disassemble a whole equipment to replace a faulty component. It is instead a lot easier to just replace the faulty equipment with whole new equipment. However, such a decision comes at an enormous capital cost. Therefore, the key question is, can we have a model to help us arrive at a decision on the correct level of carrying out repairs? Design/methodology/approach – The paper uses a model based on cost and convolution of failure distributions of critical sub-components of an equipment. Necessary assumptions based on real life experience have been incorporated in the model. Findings – The paper used an example of a particular type of motor driven sea water centrifugal pump which was commonly used in main engine sea water system, firefighting system, air conditioning system, etc. The pump had one of the highest failure rates in the ship (approximately one failure per 150 days) and the engineers found it cost and time effective to replace the entire pump on failure rather than carrying out replacement of the failed components. The model analyzed that the engineer’s hunch was not off the mark. Research limitations/implications – The implication of the work presented in the paper will be savings in maintenance cost and downtime due to optimal level of repairs on a multi-component equipment. The limitations of the work are assumption of independence of failures of components. This may not be true in all the cases. Further, opportunity based maintenance has also not been considered. Originality/value – The originality of the paper lies in the presentation of a method for selection of an optimum level of maintenance for a multi-component equipment
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Kristiani Purwendah, Elly. "PROTECTION OF THE SEA REGION FROM OIL POLLUTION BY TANKER SHIP." Jurnal Komunikasi Hukum (JKH) 6, no. 1 (February 15, 2020): 135. http://dx.doi.org/10.23887/jkh.v6i1.23465.
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In the context of national law, Law Number 32 Year 2009 concerning Environmental Protection and Management (UUPPLH) provides an understanding of the environment as a unitary space with all objects, forces, and living things, including humans and their behavior, which affect nature itself, continuity of life, and the welfare of humans and other living things. Environmental protection has general principles, namely: Sovereignty over natural resources and the responsibility not to cause damage to the environment of other states or areas beyond national jurisdiction; Principle of preventive action; Cooperation; Sustainable development. Specifically the mandate of the 1945 Constitution is spelled out in the weighing section of Law Number 32 of 2009 concerning Protection of Environmental Management (UUPPLH) which states that a good and healthy environment is the human right of every Indonesian citizen as mandated in Article 28H of the Law 1945 Constitution of the Republic of Indonesia. This law states that environmental protection and management are systematic and integrated efforts undertaken to preserve environmental functions and prevent environmental pollution and / or damage which includes planning, utilization, control, maintenance, supervision and law enforcement.
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Dlugokecki, Victoria, Dennis Fanguy, Lisa Hepinstall, and David Tilstrom. "Transforming the Shipbuilding and Ship Repair Project Environment." Journal of Ship Production and Design 26, no. 04 (November 1, 2010): 265–72. http://dx.doi.org/10.5957/jspd.2010.26.4.265.
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In April 2008, NSRP awarded the project entitled "Customization of Web-Based Planning and Production Engineering Technologies to Support Integrated Shipyard Work Flow," a collaborative research project that included Bollinger Shipyards and Atlantic Marine-Mobil. The purpose of the project was to develop and validate a project management approach to shipbuilding and ship maintenance through the delivery of a web-based production and engineering management tool tailored to the needs of this industry along with a reliable, exportable implementation process using planning and production engineering methodologies. This project was designed to enable shipyards to achieve reduction in project costs and cycle time through project standardization and the ability to perform rapid replanning while maintaining align-ment of all project stakeholders in real time. The project enabled the shipyards to bring forth quantifiable improvement opportunities that reflected the biggest impact on project delivery. This paper shares insight into the key findings derived through this transformational body of research, as well as provide an understanding of the robust process used to implement the shipyard-specific web-based project solutions in ship-building and ship repair project environments. The paper also provides a quantification and appreciation of the resulting cost benefits experienced by each of the participating shipyards. New construction programs in each of the shipyards enabled real-time metrics to be captured, illustrating the achievement of cost reduction opportunities resulting from this project.
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Park, Ho-Min, Hyu-Chan Park, Jae-Hoon Kim, and Seong-Dae Lee. "Development of planned maintenance system and ship owner’s portal service for small and medium vessel management companies." Journal of the Korean Society of Marine Engineering 42, no. 1 (January 31, 2018): 64–69. http://dx.doi.org/10.5916/jkosme.2018.42.1.64.
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