Journal articles: 'Maintenance repair and overhaul'

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Zhang, W. L., W. Y. Wang, G. Y. Ji, H. Shi, J. Pan, P. J. Niu, and G. Q. Su. "Research on the Safe Distance of UAV Carrying Manipulator for Inspection and Repair of Transmission Line." E3S Web of Conferences 218 (2020): 01031. http://dx.doi.org/10.1051/e3sconf/202021801031.

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When the drone is equipped with a robotic arm to replace the manual maintenance of the transmission line, the insulating parts in the drone maintenance system are prone to discharge and breakdown risks. In this paper, combined with the actual parameters of the transmission line and the UAV maintenance system, the finite element software is used to establish the electric field simulation model of the transmission line and the UAV maintenance system, and mainly analyzes the influence of the electric field around the transmission line on the UAV maintenance system at different distances. It is concluded that the distance between the overhaul system of the drone equipped with a robotic arm is greater than or equal to 0.02m, and there is no discharge breakdown of the insulation components; and the drone is carried out by building a test platform for the drone equipped with robotic arm to overhaul the transmission line. The safety distance test study of the robotic arm overhaul system shows that the safe working distance of the insulated components of the drone equipped with robotic arm overhaul system is 0.09m. This research provides a guarantee for the safe operation of the power transmission line equipped with the robotic arm overhauled by the drone in actual scenarios.

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Rahman, Abdul, Andry Kuswoyo, Ayip Rivai Prabowo, and Okol Sri Suharyo. "DEVELOPING STRATEGY OF MAINTENANCE, REPAIR AND OVERHAUL OF WARSHIPS IN SUPPORT OF NAVY OPERATIONS READINESS." JOURNAL ASRO 11, no. 2 (April 21, 2020): 146. http://dx.doi.org/10.37875/asro.v11i2.277.

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Maintenance, Repair, and Overhaul is an action to control, know and ensure the life of a defense equipment. Indonesia should have a concept for maintenance, repair and overhaul in the defense industry. The problem in this research is how to determine priority weighting and development strategy plan for Maintenance, Repair and Overhaul warships implemented by Fasharkan Surabaya to support the readiness of marine operations. The purpose of this study is making a strategic plan for the development of Maintenance, Repair and Overhaul warships carried out by Fasharkan Surabaya in support of marine operations readiness. The method used in this study is the determination of criteria by hierarchy using the Analytical Hierarchy Process (AHP). The results of the study show that Strategic priorities using the AHP concept obtained 5 strategies, namely 1) Cooperation in Higher Education related to technology with the highest weight, 0.42. 2) Improving the quality of Human Resources with a weight of 0.23. 3) Improve Education and Training with a weight of 0.18. 4) Fulfillment of Human Resources according to the List of Personnel Arrangement with a weight of 0.11. 5) Cooperation with the defense industry with a weight of 0.06.Keywords: Maintenance, Repair and Overhaul, Warships, AHP, Marine Operation Readiness.

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Liu, Yao Jun, Zhuo Li Guo, and Hua Pu Chen. "Transmission Line State Maintenance Expert System Development and Design." Advanced Materials Research 1006-1007 (August 2014): 1005–9. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.1005.

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When the human to transmission line repair, many potential risks and fault will cannot be found in time, resulting in not by prior treatment measures to ensure the safety and reliability of the power supply. To realize the state overhaul transmission line, can reduce the blindness of maintenance, improve the transmission line operation stability and save a lot of manpower material resources. Transmission line state repair work there are many difficulties, so in the state overhaul transmission line, on the basis of elaborating the transmission line design condition maintenance expert system, in order to improve the transmission lines the state overhaul of work efficiency.

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Denkena, Berend, Peter Nyhuis, Benjamin Bergmann, Nicolas Nübel, and Torben Lucht. "Towards an autonomous maintenance, repair and overhaul process." Procedia Manufacturing 40 (2019): 77–82. http://dx.doi.org/10.1016/j.promfg.2020.02.014.

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Zryachev, S. A., and S. N. Larin. "DEVELOPMENT OF MODELS OF AFTER-SALES SUPPORT OF AIRCRAFT FOR THE PURPOSE OF AUTOMATION OF THE PROCESSES OF MAINTENANCE, REPAIR AND OVERHAUL OF AIRCRAFT." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 22, no. 5 (2020): 54–59. http://dx.doi.org/10.37313/1990-5378-2020-22-5-54-59.

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The authors proposed the models of participants of after-sales support of civilian aircraft and their cooperation. Data streams between models have been proposed. The algorithm of automation of the processes of maintenance, repair and overhaul of aircraft has been proposed by means of models and data streams. Interface solutions of automation of the processes of maintenance, repair and overhaul of aircraft has been proposed by means of the algorithm and the models.

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Esposito, Marco, Mariangela Lazoi, Antonio Margarito, and Lorenzo Quarta. "Innovating the Maintenance Repair and Overhaul Phase through Digitalization." Aerospace 6, no. 5 (May 9, 2019): 53. http://dx.doi.org/10.3390/aerospace6050053.

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Improving processes in a company starts from a deep knowledge of the current context, of the needs for improvement and of the objectives to be satisfied. Sometimes, traditional processes can benefit from a techno-organizational innovation that changes the way of work by introducing new routines and solutions. The service industry related to maintenance, repair and overhaul (MRO) is characterized by performance linked with the knowledge about the components involved. The emerging technologies and the need for enhanced competitiveness has led to transform and innovate this kind of industry, introducing changes in organizational and technological aspects. MRO processes are characterized by high variability, caused by the uncertainty about the arrival status of a part to be maintained and the intervention needed. The management of MRO processes is, thus, one of the most important challenges for the research community. This paper aims to describe the result of a study carried out by university researchers and industrial engineers of an aerospace company. The proposed solution, the applied approach and expected impacts and benefits are described in the paper in order to lead future activities in the managerial and academic fields.

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Raju, V., O. Gandhi, and S. Deshmukh. "Maintenance, Repair, and Overhaul Performance Indicators for Military Aircraft." Defence Science Journal 62, no. 2 (March 13, 2012): 83–89. http://dx.doi.org/10.14429/dsj.62.881.

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Lee, S. G., Y. S. Ma, G. L. Thimm, and J. Verstraeten. "Product lifecycle management in aviation maintenance, repair and overhaul." Computers in Industry 59, no. 2-3 (March 2008): 296–303. http://dx.doi.org/10.1016/j.compind.2007.06.022.

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Radiansyah, Akmal, and Albert Gifson. "Inspeksi Overhaul Motor Induksi 3 Fasa 1000 KW di PT. Mesindo Tekninesia." TESLA: Jurnal Teknik Elektro 21, no. 2 (January 31, 2020): 100. http://dx.doi.org/10.24912/tesla.v21i2.7180.

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An electric motor that is used continuously will experience a decline in performance and even be damaged, maintenance and repair of electric motors must be done based on standards so that all existing specifications can be met and repairs deserve to be accepted. Where in this case motor repair is done by overhauling, where overhaul is a comprehensive repair or maintenance activity by repairing or replacing parts of electric motors that are damaged. Based on visual data and electrical measurements the decrease in the value of the polarization index (PI) of the induction motor is caused by dirty and moist winding conditions. Overhaul is done in 8 stages, namely; planning, dismantling, electrical measurement, mechanical measurement, electrical action, mechanical action, assembling and no load test running. After overhauling, the result shows that the value of the polarization index (PI) increased by 1.4 from 1.8 to 3.2, which is above the standard value set by IEEE 43.ABSTRAK:Suatu motor listrik yang digunakan terus menerus akan mengalami penurunan performa bahkan rusak, perawatan dan perbaikan motor listrik harus dilakukan berdasarkan standar supaya semua spesifikasi yang ada dapat terpenuhi dan perbaikan layak untuk diterima. Dimana pada kasus ini perbaikan motor diakukan dengan cara overhaul, dimana overhaul merupakan kegiatan perbaikan atau perawatan secara menyeluruh dengan cara memperbaiki atau mengganti bagian dari motor listrik yang mengalami kerusakan. Berdasarkan data visual dan pengukuran elektrik penurunan nilai polarization index (PI) motor induksi disebabkan oleh kondisi winding yang kotor dan lembab. Overhaul dilakukan dengan 8 tahapan, yaitu; planning, dismantling, pengukuran elektrik, pengukuran mekanik, tindakan elektrik, tindakan mekanik, assembling dan running test no load. Setelah overhaul didapatkan hasil bahwa nilai polarization index (PI) meningkat sebesar 1.4 dari sebelumnya 1.8 menjadi 3.2, berada diatas nilai standar yang ditetapkan oleh IEEE 43

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Zhang, Tao, Wen Xu, and Wei Long Sun. "Research on Using Track Quality Index (TQI) to Reasonably Arrange Line Maintenance and Repair Cycle." Applied Mechanics and Materials 744-746 (March 2015): 1303–7. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1303.

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Combined with the test data from track inspection car in some section of Lan-Xin railway, the paper researches the application of TQI in guiding line maintenance and repair. Analyze the changing trends of rail operation quality according to the statistical data, put forward calculation method of the average line deterioration index to the particular section, predict the track quality life and the maintenance cycle, and reasonably arrange the maintenance and repair time during line overhaul. By accurately using the value of TQI to guiding line maintenance and repair, rationally plan the best time of maintenance and repair, ensure the line in equilibrium and steady state.

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Zhang, Chi, Cheng Dong Xu, Xin Pei, and Chun Sheng Hu. "Information Acquisition of Maintenance, Repair and Overhaul/Operations System for Helicopters." Applied Mechanics and Materials 220-223 (November 2012): 2150–55. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.2150.

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The helicopter Maintenance, Repair and Overhaul/Operations (MRO) system enables the best sharing of the maintenance resources and maintenance ability in a wide area, so as to promote the specialization of the helicopter maintenance organizations. Information acquisition is an important and difficult part of the helicopter MRO system. This paper systematically analyzes the condition monitoring methods which are used to monitor the rotational speed, temperature, pressure, vibration and flight parameter in different parts of a helicopter, and then it puts forward some improved ways for information acquisition. Considering the helicopter’s features, the process of information acquisition is illustrated. In addition, this paper presents the basic requirements of data sampling, and it also shows a detailed discussion on data format and data transmission in the helicopter MRO system. At the end of the paper, a system mode and architecture of helicopter MRO system are proposed.

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Grudz, V. Ya Grudz Ya Grudz, Ya V. Grudz, V. M. Bodnar, and V. V. Samsonenko. "FORECASTING REPAIR WORK ON GAS PIPELINES UNDER A CENTRALIZED SERVICE SYSTEM." Prospecting and Development of Oil and Gas Fields, no. 3(68) (April 4, 2019): 31–37. http://dx.doi.org/10.31471/1993-9973-2018-3(68)-31-37.

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The management process of the gas-main pipelines' technical state that includes different-type constituent elements and has a complex multihole and looped structure is considered. The task falls under the optimization category of the maintenance process. The study aims to optimize the preventive overhaul graph of the gas supply system that includes independent subsystems. An optimum schedule of maintenance service will be determined by selection condition of the timepoint values that provide with the quality indicators' extremum of the functioning of the process facility complex within a centralized service of gas supply system. It was suggested the technical-and-economic index, in particular the average summarized unit costs to system operation, be used as a criterion for the optimality of maintenance process. The characteristic curve obtained from conducted studies provides a way to estimate the maintenance states of the complicated gas supply system that includes different-type, geographically distributed but functionally interlinked process facilities of the gas supply system in the region of the central maintenance and repair base, they give an opportunity to plan an optimum schedule of the preventive overhaul of the gas supply system.

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Haihua Zhu, Dongbo Li, and Yifei Tong. "An Ontological Knowledge-Based System for Maintenance, Repair and Overhaul Services." International Journal of Digital Content Technology and its Applications 7, no. 5 (March 15, 2013): 76–84. http://dx.doi.org/10.4156/jdcta.vol7.issue5.10.

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ZHANG, FAN, and ANDREW K. S. JARDINE. "Optimal maintenance models with minimal repair, periodic overhaul and complete renewal." IIE Transactions 30, no. 12 (December 1998): 1109–19. http://dx.doi.org/10.1080/07408179808966567.

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Asadi, Hamed, Denny Yu, and John H. Mott. "Risk factors for musculoskeletal injuries in airline maintenance, repair & overhaul." International Journal of Industrial Ergonomics 70 (March 2019): 107–15. http://dx.doi.org/10.1016/j.ergon.2019.01.008.

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Sivusuo, Jaakko, and Josu Takala. "Management Changes in MRO Business through Product Lifecycle." Management and Production Engineering Review 7, no. 3 (September 1, 2016): 87–93. http://dx.doi.org/10.1515/mper-2016-0028.

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Abstract Nowadays organizations and entire industries have faced the challenges of globalization and rapid technological development. These changes have brought new kind of competition and it has shaped and mixed organizations traditional business logic. This research is based on multiple case studies where the focus is on management changes through product lifecycle management. Emphasis is on MRO (Maintenance, repair, overhaul) providers and how they implement dynamic capabilities through product life cycle management. MRO is abbreviation for Maintenance, repair and overhaul and it is a commonly used in Aerospace industry. The study identifies several products in various stages of the life-cycle and thus identify the essential changes related to management. The stages that study identifies are Learning phase, Productisation phase and PBL phase. These phases can be used for clarifying dynamic capabilities in MRO markets.

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Demin, A. V. "REGIONAL PATTERN OF HOUSING FUND OVERHAULING." Strategic decisions and risk management, no. 2 (October 25, 2014): 74–79. http://dx.doi.org/10.17747/2078-8886-2013-2-74-79.

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Establishment of modern efficient management system of housing sector restructurisation and financing of housing fund overhauling requires integration of efforts and agreed actions of authorities, financial institutions, companies of different forms of incorporation and private persons. Data about state of housing fund have been given; increase of slum dwelling volume and number of emergency objects subject to demolition has been shown. References to regulatory documents governing performance of overhaul repair of common property in tenement buildings have been given; a method of calculating subsidy for maintenance and repair of common property of tenement house has been offered; composition, functions and targets of the main participants of financing of overhaul repair of dwelling houses have been defined.

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Pelt, Maurice, Konstantinos Stamoulis, and Asteris Apostolidis. "Data analytics case studies in the maintenance, repair and overhaul (MRO) industry." MATEC Web of Conferences 304 (2019): 04005. http://dx.doi.org/10.1051/matecconf/201930404005.

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Data analytics seems a promising approach to address the problem of unpredictability in MRO organizations. The Amsterdam University of Applied Sciences in cooperation with the aviation industry has initiated a two-year applied research project to explore the possibilities of data mining. More than 25 cases have been studied at eight different MRO enterprises. The CRISP-DM methodology is applied to have a structural guideline throughout the project. The data within MROs were explored and prepared. Individual case studies conducted with statistical and machine learning methods, were successfully to predict among others, the duration of planned maintenance tasks as well as the optimal maintenance intervals, the probability of the occurrence of findings during maintenance tasks.

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Wenbin, Zeng, Ilia Frenkel, Shen Guixiang, Igor Bolvashenkov, Jörg Kammermann, Hans-Georg Herzog, and Lev Khvatskin. "Markov Reward Approach and Reliability Associated Cost Model for Machine Tools Maintenance-Planning Optimization." International Journal of Mathematical, Engineering and Management Sciences 4, no. 4 (August 1, 2019): 824–40. http://dx.doi.org/10.33889/ijmems.2019.4.4-065.

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This paper proposes a novel Reliability Associated Cost (RAC) model for machine tools throughout its lifetime that considers two different failure consequences, immediate failure and product rejections increase failure. A maintenance strategy of corrective maintenance combined with overhaul utilized to the maintenance activities of machine tools in the current paper. Markov reward approach is developed for computing of the costs incurred by both failure consequences and maintenance activities and system average availability throughout the machine tools life cycle. The Genetic Algorithm is used to find the optimal repair rates layout and overhaul moments that provide a minimal expected cost of system operation and maintenance actions and satisfies the desired availability requirement. A numerical example is presented in order to illustrate the approach and the results show that the proposed technique can significantly cut the RAC for machine tools.

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Elxan qızı Ağayeva, Ləman. "SAP SYSTEM DRILLING BLOCK, CLASSIFICATION AND CREATION OF APPROPRIATE PLATFORMS." SCIENTIFIC WORK 66, no. 05 (May 20, 2021): 225–27. http://dx.doi.org/10.36719/2663-4619/66/225-227.

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For companies wishing to monitor inspection and repair processes through the system, the module proposed by SAP as part of the enterprise source planning application is the SAP PM (Plant Maintance) module. The PM module manages all equipment faults and scheduled repairs. The module, which is integrated with procurement, cost accounting, financial and inventory management processes, can automatically order for technical needs, track your current and overhaul costs immediately, and prepare spare parts. Purchase and consumption operations related to the warehouse can be carried out through tracking and system. These are the functions of the SAP PM module: Planning and implementation of repair activities; Repair for backup; Repair for the purpose of correction; Repair of spare parts in case of critical development of material in the warehouse; Capacity and resource planning; Maintenance planning in addition to repairs and etc. Key words: SAP system, management, planning, drilling, repair, control, organization

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Rodrigues, Darli, and Paula Lavorato. "Maintenance, Repair and Overhaul (MRO) Fundamentals and Strategies: An Aeronautical Industry Overview." International Journal of Computer Applications 135, no. 12 (February 17, 2016): 21–29. http://dx.doi.org/10.5120/ijca2016908563.

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Miller, Luke T., and Chan S. Park. "ECONOMIC ANALYSIS IN THE MAINTENANCE, REPAIR, AND OVERHAUL INDUSTRY: AN OPTIONS APPROACH." Engineering Economist 49, no. 1 (January 2004): 21–41. http://dx.doi.org/10.1080/00137910490432593.

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Plioutsias, Anastasios, Konstantinos Stamoulis, Maria Papanikou, and Robert J. de Boer. "Safety differently: A case study in an Aviation Maintenance-Repair-Overhaul facility." MATEC Web of Conferences 314 (2020): 01002. http://dx.doi.org/10.1051/matecconf/202031401002.

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You This paper presents the findings from a ‘Safety Differently’ (SD) case study in aviation, and specifically in a maintenance, repair and overhaul (MRO) organisation in Southeast Asia. The goal of the case study was to apply a new method of safety intervention that is part of the Safety Differently toolkit and utilises a bottom-up approach. This research tested the extent to which these interventions could be embedded into a continuous improvement program in a highly controlled environment, namely an Aviation MRO. The interventions (called micro-experiments, ME) are considered as a flexible tool, which allows testing of process improvements in a safe to fail way, empowering the lower levels of the organisation, challenging safety related issues and revealing key areas in need of transformation. The ideas for the interventions considered in the case study were retrieved from interviews conducted with 50 mechanics, and include issues to address aviation safety and occupational health as well as quality. We elected to include all three categories in this study as the ME approach is applicable to all of these. This MRO case study showcases the benefits and limitations of the ME in aviation, revealing the conditions under which it may become useful. Future studies should further explore the role of complex and heavily controlled industries in similar bottom up approaches, so that interventions can become part of a continuous improvement plan.

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Van Vooren, Joke. "Virtual Reality Training for Aviation Maintenance, Repair and Overhaul (Vi-Mro 1.0)." EDEN Conference Proceedings, no. 1 (June 16, 2019): 518–23. http://dx.doi.org/10.38069/edenconf-2019-ac-0058.

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The economic crisis of 2008–2013 had a huge impact on the industry and this was no different within aviation. During this period the number of recruitments within the industry was kept on a bare minimum, resulting in an ageing workforce today. According to the Q4 2017 Educavia survey on the employment by age and sector over 46% of the staff in the Aviation Maintenance, Repair and Overhaul (MRO) sector in Belgium and the Netherlands is over 50 years old. The sector indicates to be looking for extra and “younger” aviation mechanics to guarantee the continuity of the sector, but is announcing at the same time that there simply aren’t enough suitable candidates.

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Fidchunov, A. L., and T. I. Shulga. "THE IMPORTANCE OF REPAIRS FOR MAINTAINING THE PROPER TECHNICAL CONDITION OF FIXED ASSETS OF COKE-CHEMICAL ENTERPRISES (review)." Journal of Coal Chemistry 2 (2021): 14–21. http://dx.doi.org/10.31081/1681-309x-2021-0-2-14-21.

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Due to the excess operating life of the operating coke oven batteries in Ukraine, it is necessary to systematically carry out repairs to maintain the proper technical condition of the fixed assets of the coke oven production, primarily coke oven batteries. The article provides definitions of such concepts as the system of scheduled preventive maintenance of industrial buildings and structures, the system of maintenance and repair of mechanical equipment, maintenance, current repairs, major repairs, and the like. A classification of coke oven masonry repairs according to the scope of work, conditions and time of performance is stated, as well as documents regulating the procedure for their implementation are named. A brief overview of the types of repairs that are used to maintain the technical condition of coke oven batteries: preventive and current repairs (gunning, etc.), Medium repairs (partial relocation of the heads of the regenerator walls, heating walls and replacement of the reflowed packing), overhaul, which consists of partial re-laying a group of furnaces in a cold state (repairing furnace masonry with shifting walls to different depths, repairing and replacing reinforcement, repairing and replacing chimney and gas supply fittings). The main defects of coke oven battery masonry, which are subject to major repairs, are listed. It is noted that the cold group partial relocation of the furnaces is performed with gradual cooling and heating, which requires a complete or partial cessation of operation of the chambers adjacent to the ones being repaired (buffer and semi-buffer furnaces). It is emphasized that the work performed as part of the overhaul is determined by the technical condition of the battery, regardless of its age. It is noted that in modern conditions, the most effective is the relocation of the extreme and pre-extreme verticals of the coking chamber to a depth of 4-6 verticals on both sides without disconnecting the repaired chamber from heating. Keywords: coke oven battery, service life, technical condition, types of repairs, regulatory documentation. Corresponding author Fidchunov A.L., e-mail: fich.aleks@gmail.com

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Cardeal, Gonçalo, Kristina Höse, Inês Ribeiro, and Uwe Götze. "Sustainable Business Models–Canvas for Sustainability, Evaluation Method, and Their Application to Additive Manufacturing in Aircraft Maintenance." Sustainability 12, no. 21 (November 3, 2020): 9130. http://dx.doi.org/10.3390/su12219130.

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The topic of sustainable business models is growing in literature and in the industry, driving companies to search for opportunities to improve their impact on the three pillars of sustainability—profit, people, and planet (economic, social, and environmental). However, the process of developing sustainable business models is often complex, due to conflicting objectives from the three dimensions of sustainability. This paper presents a procedure model that supports the design and assessment of business models with a sustainable perspective, by integrating a new business model canvas for sustainability (BMCS) and an evaluation method to assess it. A comprehensive assessment is proposed, performed in a life cycle perspective. The proposed model is applied and validated with a real case study, based on a new business model for an aircraft maintenance, repair, and overhaul company. The case is based on shifting from traditional maintenance, repair, and overhaul activities to adopting additive manufacturing as an activity that allows manufacturing optimized spare parts with benefits for the costumer. The results show the application of the procedure model on a specific case study, as well as the potential of additive manufacturing as a driver for more sustainable business models in the aircraft maintenance sector.

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Karmanova, S. V., I. S. Glushankova, G. S. Arzamasova, and A. A. Cherepanov. "Investigation of Thermal Destruction Processes of Waste Insulation of Main Gas Pipelines." Ecology and Industry of Russia 22, no. 10 (October 5, 2018): 28–33. http://dx.doi.org/10.18412/1816-0395-2018-10-28-33.

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The possibility of applying the thermal method for neutralizing waste re-insulation during the major overhaul of main gas pipelines is considered. The initial composition of the organic part of the waste is shown. The thermal effects observed during the decomposition of waste in a controlled atmosphere, the composition of waste gases and the results of thermal analysis of waste samples resulting from the replacement of insulation of gas pipelines selected for maintenance and repair of linear sections of main gas pipelines are examined. Ways of solving the problem of elimination of waste generated during the gas pipeline overhaul are suggested.

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Graf, Benjamin, Stefan Ammer, Andrey Gumenyuk, and Michael Rethmeier. "Design of Experiments for Laser Metal Deposition in Maintenance, Repair and Overhaul Applications." Procedia CIRP 11 (2013): 245–48. http://dx.doi.org/10.1016/j.procir.2013.07.031.

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Mathaisel, Dennis F. X. "A lean architecture for transforming the aerospace maintenance, repair and overhaul (MRO) enterprise." International Journal of Productivity and Performance Management 54, no. 8 (December 2005): 623–44. http://dx.doi.org/10.1108/17410400510627499.

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Hodges, Vicki E., and John P. T. Mo. "Transitioning defence aerospace support solution to service commercial sector maintenance repair and overhaul." International Journal of Production Research 56, no. 6 (August 3, 2017): 2199–217. http://dx.doi.org/10.1080/00207543.2017.1346315.

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Zhu, Haihua, James Gao, Dongbo Li, and Dunbing Tang. "A Web-based Product Service System for aerospace maintenance, repair and overhaul services." Computers in Industry 63, no. 4 (May 2012): 338–48. http://dx.doi.org/10.1016/j.compind.2012.02.016.

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Srivastava, Preeti Wanti, and Nidhi Jain. "Bayesian Prediction of the Overhaul Effect on a Repairable System with Bounded Failure Intensity." International Journal of Quality, Statistics, and Reliability 2011 (August 25, 2011): 1–8. http://dx.doi.org/10.1155/2011/681210.

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This paper deals with the Bayes prediction of the future failures of a deteriorating repairable mechanical system subject to minimal repairs and periodic overhauls. To model the effect of overhauls on the reliability of the system a proportional age reduction model is assumed and the 2-parameter Engelhardt-Bain process (2-EBP) is used to model the failure process between two successive overhauls. 2-EBP has an advantage over Power Law Process (PLP) models. It is found that the failure intensity of deteriorating repairable systems attains a finite bound when repeated minimal repair actions are combined with some overhauls. If such a data is analyzed through models with unbounded increasing failure intensity, such as the PLP, then pessimistic estimates of the system reliability will arise and incorrect preventive maintenance policy may be defined. On the basis of the observed data and of a number of suitable prior densities reflecting varied degrees of belief on the failure/repair process and effectiveness of overhauls, the prediction of the future failure times and the number of failures in a future time interval is found. Finally, a numerical application is used to illustrate the advantages from overhauls and sensitivity analysis of the improvement parameter carried out.

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Yan, Ji Hong, Yu Yan Wang, and Xu Zhang. "Genetic Algorithm Based Methodology for Optimal Maintenance Scheduling of Multi-Unit Systems." Key Engineering Materials 450 (November 2010): 539–43. http://dx.doi.org/10.4028/www.scientific.net/kem.450.539.

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This paper presents a novel methodology for optimal maintenance scheduling of multi-unit systems under predictive maintenance (PdM) environment. A maintenance scheduling model for multi-unit system is established considering performance degradation of units, dynamic characteristics of the system, economic dependence and structural dependence between units, and constraints of maintenance resources. The deterioration of units is modeled by Weibull distribution. Three maintenance actions, as minor repair, imperfect overhaul and replacement are considered to arrange the PdM schedule of a system. The genetic algorithm based methodology is employed to obtain the near optimal scheduling which results in a relatively minimal maintenance cost rate. The scheduling results demonstrate that the proposed methodology is feasible and effective.

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Goncalves, Cassio Dias, and Michael Kokkolaras. "Collaborative Product–Service Approach to Aviation Maintenance, Repair, and Overhaul. Part II: Numerical Investigations." Journal of Aviation Technology and Engineering 8, no. 2 (April 25, 2019): 8. http://dx.doi.org/10.7771/2159-6670.1182.

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Wits, Wessel W., J. Roberto Reyes García, and Juan M. Jauregui Becker. "How Additive Manufacturing Enables more Sustainable End-user Maintenance, Repair and Overhaul (MRO) Strategies." Procedia CIRP 40 (2016): 693–98. http://dx.doi.org/10.1016/j.procir.2016.01.156.

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Ayeni, P., T. Baines, H. Lightfoot, and P. Ball. "State-of-the-art of ‘Lean’ in the aviation maintenance, repair, and overhaul industry." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 11 (September 21, 2011): 2108–23. http://dx.doi.org/10.1177/0954405411407122.

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The increasing need for maintenance, repair, and overhaul (MRO) organizations to meet customers’ demands in quality and reduced lead times is key to its survival within the aviation industry. Furthermore, with the unpredictability in the global market and difficulties with forecasting characteristic of the MRO industry there is an increased need for the re-evaluation of the operation models of organizations within this sector. However, severe economic turmoil and ever-increasing global competition introduce the opportunity for the adoption of a resilient, tried, and tested business operation model such as ‘Lean’. In order to understand this concept, its long-term viability, and its application within the aerospace MRO sector fully, this paper presents the state-of-the-art in terms of the adoption of Lean within the MRO industry by carrying out a systematic review of the literature. This paper establishes the common perception of Lean by the MRO industry and the measurable progress that has been made on the subject. Some issues and challenges are also highlighted including the misconceptions that arise from the direct transference of the perception of Lean from other industrial sectors into the aerospace MRO industry. The ‘enablers and inhibitors’ of Lean within the aviation industry are also discussed. This paper exposes the scarcity of the literature and the general lagging behind of the industry to the adoption of the Lean paradigm and thus highlights areas where further research is required.

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Ayeni, Peter, Peter Ball, and Tim Baines. "Towards the strategic adoption of Lean in aviation Maintenance Repair and Overhaul (MRO) industry." Journal of Manufacturing Technology Management 27, no. 1 (February 2016): 38–61. http://dx.doi.org/10.1108/jmtm-04-2015-0025.

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Ma, Wenquan, Hongwei Qin, Yi You, and Huaxiao Ding. "Application of the Concept of Presentational Understanding in the Practice Courseware of Electric Power Maintenance." E3S Web of Conferences 233 (2021): 04027. http://dx.doi.org/10.1051/e3sconf/202123304027.

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Currently, the level of intelligent construction in the power industry is constantly improving, and power maintenance has gradually realized intelligent control and management, which greatly guarantees the operational safety of smart grids. In order to solve the problem that traditional courseware cannot meet the practical requirements of electric power maintenance, a kind of practical electric power maintenance courseware is researched and designed based on the concept of presentational understanding. From the perspective of improving the real-time and accuracy of power overhaul, the monitoring information of the substation is effectively presented. On this basis, effective inspection and repair work are carried out on the secondary circuit of the substation. The content of the courseware enhances the deeper understanding of the electric power maintenance staff.

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Geng, Junhao, Xitian Tian, Mingxing Bai, Xiaoliang Jia, and Xiangwei Liu. "A design method for three-dimensional maintenance, repair and overhaul job card of complex products." Computers in Industry 65, no. 1 (January 2014): 200–209. http://dx.doi.org/10.1016/j.compind.2013.08.008.

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Kamat, Seri Rahayu, Fatimah Md Hassan, Wan Hasrulnizzam Wan Mahmood, Mohammad Firdaus Ani, and Suliswiyadi. "Critical Factors Influencing Project on Effective Maintenance, Repair and Overhaul (MRO) in Aircraft Aviation Industry." Malaysian Journal on Composites Science and Manufacturing 4, no. 1 (March 5, 2021): 1–10. http://dx.doi.org/10.37934/mjcsm.4.1.110.

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This study aims to identify the critical factor influencing the project as regards successful aircraft maintenance, repair, and overhaul (MRO) in the aviation industry. Furthermore, this research also aims to investigate whether regulation of project changes plays a role in moderating the relationship between the independent variables and dependent variables described in this research. Through the literature review process, it was found that top management support, stakeholders, key factors competency, acceptance, risk management, project plan monitoring, and effective communication are among the critical factors identified. Referring to a completed project, this research showed that project progress was in two dimensions in a maintenance context, which this research classifies as a successful micro and macro project. The macro viewpoints of project success mean the organizational stage of the project must be recognized and accomplishment relies on the consumer or collaborators to share. The micro perspective of project success can help to manage a project in small levels and is normally alluded to at the finishing line of the project. The summary result for the 4 hypotheses tested, all of them were significant. The result obtained clearly expressed all of the dependent variables have positive influences on project success in MRO aircraft in the Malaysian aviation industry. This research also demonstrates through trial and error that project key factors’ competency and project mission are critical factors in influencing the micro-project success and as well for macro project success, top management support and project mission are two main critical factors.

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Gregg, Shawn J. "Digitization and MRO at ASME Turbo Expo 2018." Mechanical Engineering 140, no. 03 (March 1, 2018): S51—S56. http://dx.doi.org/10.1115/1.2018-mar-7.

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This article highlights the introduction of digital and maintenance, repair, and overhaul (MRO) at ASME Turbo Expo 2018. The Digital impact begins at the OEM where analytical experiments assess the impact of geometry and boundary conditions on part life/performance. Performance characteristics taken from operational data are integrated with physical characteristics taken from the MRO environment to model and predict new part performance in existing turbomachinery and applied to the design and development of new turbomachinery. Most OEMs today offer an asset monitoring solution based on predictive analytics for their products. Operators and MROs looking for a more universal solution are reaching out to third parties or developing their own asset monitoring systems. Maintenance actions and shop findings are fed back to the asset monitoring solution to provide real time troubleshooting and repair work-scoping, saving valuable time in the operational and MRO environments.

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Fachrie, Yordian, and Arviansyah. "Supplier evaluation in industrial power services: a case study in gas-turbine maintenance, repair, and overhaul." E3S Web of Conferences 202 (2020): 13002. http://dx.doi.org/10.1051/e3sconf/202020213002.

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The maintenance is one of the highest costs in a gas-turbine engine, after operating cost with approximately about 14-19 % of the total cost. Some of the operators do not have spare engines, and it will lead to operation shutdown. With the current market, most MRO challenged to provide their costumer to achieve quick turnaround time (TAT) at a low cost without affecting the quality of the product. Since MRO is selling the skill services, it took applied technology, skill training, and experience to deliver quality, which needs high cost. Therefore, MRO needs to collaborate with other parties (original manufacturer or others) to increase its capacity and capability. MRO should concern more for evaluating the vendors to align with the strategies to get quick turnaround time with the right quality product. Supplier selection is the objective of this research by analyzing the selection criteria at Industrial Gas-Turbine maintenance. The highest priority is the vendor effectiveness followed by the quality, cost, risk management. The highest weight is based on the priority of the supplier.

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Basak, Munmun, and Indranil Guha. "E-Procurement Utilisation in the Maintenance Repair and Overhaul (MRO) Supply Chain by SMEs in India." Journal of Cases on Information Technology 18, no. 2 (April 2016): 51–61. http://dx.doi.org/10.4018/jcit.2016040104.

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Due to the significant contribution in output, exports and employment, the Small and Medium enterprises (SEMs) play a critical role in the Indian economic structure. In this study a three dimensional; namely information, transactional and strategic decision making perspectives of the e-procurement functionalities are investigated. A cross-sectional survey is used as the methodology for the data collection. After a systematic analysis it was found that in the MRO industry the MSEMs used the e-procurement system mainly for purchasing, communication and transactional purposes. However, strategic utilisation of the e-procurement for the optimisation of SCM process in the MRO industry in India is still in its nascent stage. The results are limited to its sample size due to the size of the MRO and its MSEMs industry. Thereafter, success factors and performance of the e-procurement in these MSEMs is also studied to analyse the utilisation of e-procurement in detail.

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Gillespie, David I., Andrew W. Hamilton, Robert C. Atkinson, Xavier Bellekens, Craig Michie, Ivan Andonovic, and Christos Tachtatzis. "Defect Detection in Aerospace Sandwich Composite Panels Using Conductive Thermography and Contact Sensors." Sensors 20, no. 22 (November 23, 2020): 6689. http://dx.doi.org/10.3390/s20226689.

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Sandwich panels consisting of two Carbon Fibre Reinforced Polymer (CFRP) outer skins and an aluminium honeycomb core are a common structure of surfaces on commercial aircraft due to the beneficial strength–weight ratio. Mechanical defects such as a crushed honeycomb core, dis-bonds and delaminations in the outer skins and in the core occur routinely under normal use and are repaired during aerospace Maintenance, Repair and Overhaul (MRO) processes. Current practices rely heavily on manual inspection where it is possible minor defects are not identified prior to primary repair and are only addressed after initial repairs intensify the defects due to thermal expansion during high temperature curing. This paper reports on the development and characterisation of a technique based on conductive thermography implemented using an array of single point temperature sensors mounted on one surface of the panel and the concomitant induced thermal profile generated by a thermal stimulus on the opposing surface to identify such defects. Defects are classified by analysing the differential conduction of thermal energy profiles across the surface of the panel. Results indicate that crushed core and impact damage are detectable using a stepped temperature profile of 80 ∘C The method is amenable to integration within the existing drying cycle stage and reduces the costs of executing the overall process in terms of time-to-repair and manual effort.

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Kartiko, Donni, Suparno Suparno, Okol S Suharyo, Ahmadi Ahmadi, and Arica Dwi Susanto. "DETERMINATION OF MAINTENANCE PRIORITY INDONESIAN NAVY SHIP DEPO LEVEL USING FUZZY MCDM." JOURNAL ASRO 9, no. 2 (September 10, 2018): 75. http://dx.doi.org/10.37875/asro.v9i2.79.

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The Indonesian Navy as a defense and security force of the sea has combat tools and supporting facilities projected in the Integrated Fleet Weapon System (Sistem Senjata Armada Terpadu/SSAT) with several components including Indonesian navy ships, marines, aircraft and bases. Depo level maintenance is comprehensive maintenance that can only be carried out by personnel who are experts in their field and supported by complete and sophisticated equipment and facilities. Maintenance at this level includes complete overhaul repairment, repowering MLM (mid life modernization), calibration of all equipment, and repairs to all parts thoroughly. Depo Level Maintenance is the nature of maintaining technical conditions based on rotary hours. If the repair schedule specified in the SPT (System for Planned Maintenance), the schedule must be carried out. This research aimed to present a priority setting solution in Depo level maintenance wherein the highest Indonesian Navy Ship ranking is determined from the level of the decision makers. Fuzzy MCDM is a method developed for decision making on several alternative decisions to get an accurate and optimal decision. In Indonesian Navy Ship Hardepo priority ranking process taken from the level of data processing decision makers using the Fuzzy MCDM method, the 5 highest priority values in implementation were obtained. Hardepo with the highest scores were KRP-812 0.111, BDU-841 0.108, LAM-374 0.107, KRS-624 0.097 and TJA-541 0.073

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Lu, Mi Cheng, Ta Wei Tai, and Li Hsiang Chiu. "Using RFID Technology to Build Ubiquitous Computing Environment of the Aircraft MRO Process." Applied Mechanics and Materials 182-183 (June 2012): 860–64. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.860.

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The environment of the network is by Electronic, Mobile gets to Ubiquitous, has already been irreversible trend, and the implementation of RFID technology had aroused discussion in a lot of fields. We think that the combination of RFID and Ubiquitous environment will cause another commercial revolution. Many industries had deployed RFID, like aviation industry, in which RFID is used in maintenance materials and baggage management. This paper discusses the implementation of RFID in Maintenance, Repair and Overhaul (MRO) process and the building of a ubiquitous computing environment. We believe that our proposal has three merits to MRO (1) anti-counterfeit parts (2) MRO liability (3) efficient and effective inspection. The architecture can address the competition pressure that aviation industry faces and consequently enhance competition advantages.

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Liu, Pai, Xi Zhang, Zhongshun Shi, and Zewen Huang. "Simulation Optimization for MRO Systems Operations." Asia-Pacific Journal of Operational Research 34, no. 02 (April 2017): 1750003. http://dx.doi.org/10.1142/s0217595917500038.

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In this paper, we address the scheduling issues in a class of maintenance, repair and overhaul systems. By considering all key characteristics such as disassembly, material recovery uncertainty, material matching requirements, stochastic routings and variable processing times, the scheduling problem is formulated into a simulation optimization problem. To solve this difficult problem, we developed two hybrid algorithms based on nested partitions method and optimal computing budged allocation technology. Asymptotic convergence of these two algorithms is proved and numerical results show that the proposed algorithms can generate high quality solutions which outperform the performance of many heuristics.

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Tran, Le Vu, Bao Huy Huynh, and Humza Akhtar. "Ant Colony Optimization Algorithm for Maintenance, Repair and Overhaul Scheduling Optimization in the Context of Industrie 4.0." Applied Sciences 9, no. 22 (November 11, 2019): 4815. http://dx.doi.org/10.3390/app9224815.

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Maintenance, Repair, and Overhaul (MRO) is a crucial sector in the remanufacturing industry and scheduling of MRO processes is significantly different from conventional manufacturing processes. In this study, we adopted a swarm intelligent algorithm, Ant Colony Optimization (ACO), to solve the scheduling optimization of MRO processes with two business objectives: minimizing the total scheduling time (make-span) and total tardiness of all jobs. The algorithm also has the dynamic scheduling capability which can help the scheduler to cope with the changes in the shop floor which frequently occur in the MRO processes. Results from the developed algorithm have shown its better solution in comparison to commercial scheduling software. The dependency of the algorithm’s performance on tuning parameters has been investigated and an approach to shorten the convergence time of the algorithm is emerging.

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Kraus, Jakub, Andrej Lališ, Vladimír Plos, Peter Vittek, and Slobodan Stojić. "Utilizing Ontologies and Structural Conceptual Models for Safety Data Management in Aviation Maintenance, Repair and Overhaul Organizations." Transportation Research Procedia 35 (2018): 35–43. http://dx.doi.org/10.1016/j.trpro.2018.12.005.

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Sprong, J. P., X. Jiang, and H. Polinder. "Deployment of Prognostics to Optimize Aircraft Maintenance – A Literature Review." JOURNAL OF INTERNATIONAL BUSINESS RESEARCH AND MARKETING 5, no. 4 (2020): 26–37. http://dx.doi.org/10.18775/jibrm.1849-8558.2015.54.3004.

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Historic records show that the cost of operating and supporting an aircraft may exceed the initial purchase price as much as ten times. Maintenance, repair and overhaul activities rep- resent around 10-15% of an airlines annual operational costs. Therefore, optimization of maintenance operations to minimize cost is extremely important for airlines in order to stay competitive. Prognostics, a process to predict remaining useful life of systems and/ or components suffering from aging or degradation, has been recognized as one of the revolutionary disciplines that can improve efficiency of aircraft operations and optimize aircraft maintenance. This study focuses on literature that has used prognostics to optimize aircraft maintenance and identifies research gaps for further optimization of aircraft maintenance in commercial aviation. In this paper, the origin and development of prognostics is firstly introduced. Thereafter, the state of art of aircraft maintenance is reviewed. Next, the applicability of prognostics to optimize aircraft maintenance is explained, reviewed, and potential challenges and opportunities are explored. Finally, the state-of-the-art of prognostics in aircraft maintenance is dis- cussed and research gaps are identified in perspective of the deployment of prognostics to optimize aircraft maintenance.

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Journal articles on the topic 'Maintenance repair and overhaul'

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