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Journal articles on the topic 'System of planned and preventive repairs'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Podtcykin, Nikolay S. "Mathematical model of condition-based preventive maintenance of a complex technical system." 47, no. 47 (September 28, 2020): 53–71. http://dx.doi.org/10.26565/2304-6201-2020-47-05.

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A new approach to mathematical modeling of complex technical systems according to their condition is being developed. Connections between subsystems of a complex system are considered to be arbitrary in terms of reliability. Due to wear, failures of subsystems can happen at random moments of time. Failures of some subsystems can lead to the entire system failure. The purpose of the simulation is to maintain the level of reliability and operability of a complex technical system at an optimal level for an unlimited time interval by means of regular preventive maintenance and repair. Technical in

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2

Vo Trong, Cang. "Optimizing repair interval of vehicles at a given level of reliability parameters." Science and Technology Development Journal 17, no. 4 (2014): 35–44. http://dx.doi.org/10.32508/stdj.v17i4.1528.

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The maintenance system should be built taking into account the specific exploiting conditions, that is, to take into account not only the running distance between repairs, but the volume of the planned maintenance was made (both preventive and corrective) and their intervals. The paper presents principles and algorithms to optimize the meantime between repairs for the components of vehicles at a given level of reliability parameters. This algorithm can be applied to the worn parts of vehicles through the attrition survey in the specific exploiting conditions and calculating the reliability ind

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Andreeva, Liudmila. "Choosing a strategy for mining equipment repair service." Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, no. 4 (June 25, 2021): 83–91. http://dx.doi.org/10.21440/0536-1028-2021-4-83-91.

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Relevance. The traditional practice of increasing production efficiency with a focus on technical reequipment and increase in the unit capacity of the equipment in operation, carried out without proper changes in the organization of production and for equipment repair service strategy leads to inefficient use of resources and loss of working time, which in turn affects the volume of output of the final product. Research aim is to select the optimal combination of planning strategies for mining equipment repair service. Research methodology includes the methods of structural and functional anal

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Mickūnaitis, Valentinas, and Saulius Nagurnas. "THE IMPROVEMENT OF THE TECHNICAL EXPLOITATION OF AUTOMOBILES." TRANSPORT 17, no. 4 (2002): 143–46. http://dx.doi.org/10.3846/16483840.2002.10414031.

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This article analyses the factors that considerably influence the efficiency of automobile technical exploitation. It has been noted that automobile technical exploitation is basically determined by the following factors: the system and organizational level of automobile technical maintenance and repairs; the level of service basis; qualification of the staff; the level of stock and supply; the structure and age of automotive fleet and conditions of exploitation. This article presents the analysis of the first factor. The factor is significant enough and does not involve big investments. A the

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Makohonov, Anton, and Ivan Marynych. "THE WAREHOUSE AND STRUCTURE OF THE INFORMATION SYSTEM FOR ORGANIZING PLANNED PREVENTIVE MAINTENANCE." Bulletin of NTU "KhPI". Series: Strategic management, portfolio, program and project management, no. 1(8) (June 23, 2024): 33–40. http://dx.doi.org/10.20998/2413-3000.2024.8.5.

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The work is devoted to the consideration of the information system components, which can be used for effective organization and implementation of planned and preventive repairs in industrial and infrastructure facilities. The rationale for the performance of such works is given. It is also determined that one of the ways to improve their efficiency is the introduction of computerized maintenance management systems. Accordingly, a review of some existing solutions on the market was conducted. Given the advantages and disadvantages of existing solutions are characterized. It is noted that even i

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Grudz, Volodymyr, Yaroslav Grudz, Ivan Pavlenko, et al. "Ensuring the Reliability of Gas Supply Systems by Optimizing the Overhaul Planning." Energies 16, no. 2 (2023): 986. http://dx.doi.org/10.3390/en16020986.

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The aim of the article is the development of methods for optimal overhaul planning of compressor station equipment. Nowadays, due to uncertainties in the forecast of gas supply flow rates, increasing the reliability and energy efficiency of main gas pipelines is an urgent problem. The dependence of operating costs for major repairs on the maintenance periodicity is extreme. Reducing equipment’s maintenance period leads to an increase in repair costs. It also increases the reliability of equipment operation. Overall, all these facts reduce the probability of emergency failures and related expen

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Shavkun, V. "METHODOLOGY OF CHOOSING PARAMETERS FOR DIAGNOSING ELEMENTS OF URBAN ELECTRIC VEHICLES." Municipal economy of cities 3, no. 163 (2021): 138–43. http://dx.doi.org/10.33042/2522-1809-2021-3-163-138-143.

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The operation of various vehicles in the field of urban electric transport is accompanied by high costs to maintain their working condition throughout the service life. Preservation of serviceability of vehicles is provided by performance of planned and preventive works on maintenance (MOT) and repair, and also the unscheduled repairs which are carried out for elimination of failures which arise in the interprophylactic periods, and malfunctions. As already noted, in the planned preventive maintenance and repair system, the vehicle after a certain mileage (time) is forcibly subjected to preven

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DROGOLOV, Denis Yu, Pavel V. SOKOLOV, and Alexey S. KUSHNIRUK. "Optimization of the norms of overhaul runs for traction electric motors of locomotives based on the results of the distribution of failures at the range of the Far Eastern Railway." Proceedings of Petersburg Transport University 18, no. 3 (2021): 393–401. http://dx.doi.org/10.20295/1815-588x-2021-3-393-401.

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Objective: Optimization of the rates of overhaul runs on the basis of the results of the study of the distribution of failures of traction motors caused by a critical decrease in the insulation resistance of the windings to reduce the cost of eliminating the consequences of unscheduled repairs of locomotives. Methods: Mathematical statistics, probability theory, theory of reliability of technical systems are applied. Results: A cause-and-effect analysis was carried out of cases when locomotives were placed for unscheduled repairs in 2019–2020. An element has been determined that limits the rat

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Zagorodnii, Nikolai, Yuriy Zayats, Aleksandr Novikov, and Alla Semykina. "CLUSTER APPROACH TO ORGANIZING ADAPTIVE SYSTEM OF CAR MAINTENANCE AND REPAIR." Transport engineering 2025, no. 5 (2025): 39–45. https://doi.org/10.30987/2782-5957-2025-5-39-45.

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The study objective is to develop an adaptive system of maintenance and repair for determining maintenance timing and content, based on a cluster approach, which is planned, preventive, and automatically adapts to increasing reliability, operating conditions reflected in operational modes, the infrastructure of the enterprise, its purpose and characteristics of the transport and technological tasks being solved. tasks. The task to which the paper is devoted is to develop a new approach to vehicle maintenance and repair that characterizes vehicle operating modes and is necessary for an objectiv

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10

Buryak, P., I. Tsebriuk, and Ye Buryak. "IMPROVEMENT OF THE SYSTEM OF MAINTENANCE OF FOREIGN-MADE CARS IN THE MILITARY UNITS OF THE NATIONAL GUARD OF UKRAINE." Collection of scientific works of the National Academy of the National Guard of Ukraine 2, no. 40 (2022): 12–18. http://dx.doi.org/10.33405/2409-7470/2022/2/40/270511.

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In the military units of the National Guard of Ukraine, a planned preventive maintenance system has been introduced, which provides for mandatory implementation with the due frequency of the established set of works in the process of using and storing machines. Maintenance for everyday machines includes inspection, daily maintenance, maintenance no. 1, maintenance No. 2, seasonal maintenance. Technical services No. 1 and No. 2 are aimed at ensuring the uptime of machines, reducing the intensity of wear of parts, detecting and preventing malfunctions. It is carried out with a certain frequency.

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Vorobyov, A. A., D. S. Shutov, and M. V. Nikolashin. "Calculation and analysis of wheel sets durability indicators of Moscow metro electric trains." Herald of the Ural State University of Railway Transport, no. 4 (2021): 26–34. http://dx.doi.org/10.20291/2079-0392-2021-4-26-34.

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During the analysis, the data obtained from the wheelset registers stored at production and technical departments of the electric depot and kept by engineers-technologists in wheel economy were considered and analyzed. To analyze the data, methodology for calculating durability indicators was used. On the basis of the analysis, the dependences on the operating time of the average value and standard deviation, the resource distribution function and the wheel diameter distribution density function are constructed. These units have the greatest impact on the safety of train traffic and therefore

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12

Toigambayev, S., N. Martinova, K. Shavazov, and N. Telovov. "Justification of the methods of material and technical maintenance and repair of agricultural machines." Journal of Physics: Conference Series 2176, no. 1 (2022): 012089. http://dx.doi.org/10.1088/1742-6596/2176/1/012089.

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Abstract This work substantiates the rational structure of the repair and maintenance base of agricultural machinery, methods for determining the needs for material and technical means, taking into account the appropriate proportions between the links of the repair network. The maintenance and restoration of the operability of tractors and other agricultural machines in sufficient limits is ensured, as is known, with the help of a system of maintenance and repair, which provides for the implementation of preventive maintenance operations and the conduct of routine and major repairs of machines

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Озірковський, Л., В. Маринович та Р. Колодій. "Вплив параметрів стратегії технічного обслуговування на частоту потрапляння в аварійну ситуацію системи коміркового зв’язку". Information and communication technologies, electronic engineering 2, № 1 (2022): 74–81. http://dx.doi.org/10.23939/ictee2022.01.074.

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The article shows the possibility of applying the methodology of synthesizing the parameters of the maintenance strategy of the mobile communication system. On the basis of Markov model the estimation of functional safety index of mobile communication system, namely frequency of getting into an accident situation from the value of the period of planned preventive maintenance, duration of repair works, etc. is carried out. Feature of the proposed approach is that the designer has the opportunity to choose appropriate parameters of maintenance strategy still at the stage of system-technical desi

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Purnomo, Muhammad Ridwan Andi. "Incorporating deep learning data analytics techniques in the optimisation of capacitated planned maintenance." Jurnal Sistem dan Manajemen Industri 6, no. 2 (2022): 167–75. http://dx.doi.org/10.30656/jsmi.v6i2.5076.

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Manufacturing systems must be supported by the availability of materials, a streamlined production process and a prepared production line to achieve the production target. In a mass customization manufacturing system, the number of machines required for customization is relatively small. Conse-quently, maintenance on critical machines will impact this manufacturing system the most. Two types of maintenance strategies are implemented: corrective and preventive maintenance. The corrective maintenance requires more resources since the time and cost to repair the breakdown machine will be higher d

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Afanasiev, Georgij. "Analysis of the organization of operation of engineering systems of residential buildings based on a queuing model with interruptions and close-downs." Construction and Architecture 8, no. 4 (2020): 77–82. http://dx.doi.org/10.29039/2308-0191-2020-8-4-77-82.

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In resent years has been increasing interest for application of probabilistic methods, in particular queueing theory for estimation of activities of managing companies of residential buildings. Maintenance of residential buildings is a set of measures that ensure the highest reliability of all elements and systems of a building. The main element of the technical operation of residential buildings is a system of scheduled prophylactic inspections and repairs. However even with its rational organization, there is always a positive probability of failure of building elements, which depends not on

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Sa’ad, Aisha, Aimé C. Nyoungue, and Zied Hajej. "Improved Preventive Maintenance Scheduling for a Photovoltaic Plant under Environmental Constraints." Sustainability 13, no. 18 (2021): 10472. http://dx.doi.org/10.3390/su131810472.

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The supply of PV power that satisfies the needs of customers is heavily dependent on the reliability of the generating plants. However, irrespective of the robustness of the design of such physical industrial assets, they tend to depreciate with usage and/or age which, in turn, increases the allowance between the design and the operational capabilities. Therefore, to ameliorate the reliability of the system, a combination of selective and preventive maintenance actions were planned by determining the best combination (optimal preventive maintenance intervals, optimal replaced components). In t

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Baranchik, Vitaly, and Anatoly Dotsenko. "Determination of the road surfaces stress-strain state by using of Global Navigation Satellite System." E3S Web of Conferences 97 (2019): 04014. http://dx.doi.org/10.1051/e3sconf/20199704014.

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The reduction of the current road repair costs is possible to be ensured by reducing its labour intensity and increasing interrepair periods. To achieve these goals, it is proposed to create a system of the road planned preventive maintenance (RPPM) based on the automated road stress-strain state diagnostics with constant measurement of the surface deformation by using the GLONASS and GPS navigation satellite systems operating in real time mode. The RPPM system will be based on the Global Navigation Network of permanently operating base stations, which allow to continuously monitor the dynamic

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18

Golovan, A., I. Honcharuk, O. Deli, O. Kostenko, and Y. Nykyforov. "System of Water Vehicle Power Plant Remote Condition Monitoring." IOP Conference Series: Materials Science and Engineering 1199, no. 1 (2021): 012049. http://dx.doi.org/10.1088/1757-899x/1199/1/012049.

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Abstract Remote condition monitoring of water vehicles plays an important role in preventing potentially very expensive marine incidents and ensuring maximum efficiency of a ship's operation and reliability with minimum maintenance downtime and repair costs. Concept of the condition-based approach to maintenance is today's best practise, and it is becoming increasingly important to move from planned maintenance to condition-based maintenance, to reduce the increasingly high cost of maintaining a modern fleet. Onboard and remote monitoring is now an essential part of condition-based maintenance

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Virca, Ioan, Viorel Dascălu, and Constantin Grigoraş. "Research On Improving The Maintenance Activities For Military Vehicles." International conference KNOWLEDGE-BASED ORGANIZATION 21, no. 3 (2015): 896–903. http://dx.doi.org/10.1515/kbo-2015-0152.

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Abstract The current maintenance system, preventively planned and applied to the military equipment according to the necessities, involves the rigorous execution of maintenance operations, which results in high costs and volume of work. These causes generally determine the formality of planned repairs and maintenance, with detrimental effects for the availability of vehicles. Moreover, the constructive-functional level of the current technical systems leads to the reorientation of adopting maintenance strategies that correspond to the availability level of the constructive kits to computerized

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20

Kliuiev, Vasyl, and Yevhenii Bakulin. "Modern methods of identifying the hazards of destruction of buildings, structures and constructions in real operating conditions." Building constructions. Theory and Practice, no. 15 (December 23, 2024): 86–96. https://doi.org/10.32347/2522-4182.15.2024.86-96.

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The problem of identifying the hazards of buildings, constructions and structural elements destruction in the conditions of actual operation arises from the need to ensure the safety of people and property. This problem is especially relevantin connection with the constant increase in the volume of construction and operation of building objects of various functional purposes.The importance of identifying the hazards of the destruction of operated objects is to identify potential threats of destruction in advance and to take appropriate measures to localize them This challenge requires an integ

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Biletskyi, Volodymyr, Oleksandr Ivanushko, Andrii Loboda, Oleksandr Buhaichuk, and Roman Lovha. "Overview of information and communication technologies and vehicle monitoring systems and analysis of their possibilities for the formation and implementation of innovative technologies for maintenance and repair of vehicles." Avtoshliakhovyk Ukrayiny 1, no. 273 (2023): 8–16. http://dx.doi.org/10.33868/0365-8392-2022-1-273-8-16.

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Preventive maintenance is performed at fixed intervals based on pre-made statistical estimates of when a failure may occur or when a part may need to be replaced. Predictive maintenance is performed at unfixed intervals that are determined based on predictive estimates of when a failure may occur or when a part may need to be replaced. The predictive maintenance system is based on the automated collection and automated processing of all technical information necessary to predict the most optimal intervals. This possibility is provided by innovative information technologies for monitoring vehic

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Golnahali, Hadi, Yaghoub Alavimatin, Farhad Nejad Irani, and Sirus Fakhimiazar. "Designing a Total Productive Maintenance (TPM) Management Model Using a Combined Approach of Factor Analysis and Interpretive Structural Modeling (ISM) in the Power Distribution Companies of Northwest Iran." Management, Education and Development in Digital Age 2, no. 1 (2025): 88–108. https://doi.org/10.61838/medda.2.1.7.

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The aim of this study is to design a Total Productive Maintenance (TPM) management model using a combined approach of factor analysis and Interpretive Structural Modeling (ISM) in the power distribution companies of northwest Iran. This research is conducted within the power distribution companies of the northwest region, selected as the pilot area. Identifying the optimal maintenance strategy and selecting the most effective TPM management model are of significant importance. The results of this research will be provided to Tavanir and the Ministry of Energy for potential implementation in ot

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Butorin, Vladimir, Leonid Saplin, and Anna Pleshakova. "Choosing a strategy for technical operation of electrical equipment." E3S Web of Conferences 389 (2023): 07002. http://dx.doi.org/10.1051/e3sconf/202338907002.

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Electric motors are rechargeable products. The important point in the system of maintenance and repair of electric motors is the choice of optimal maintenance strategy. At present the most widespread is the planned preventive maintenance strategy. However, condition based maintenance is gaining in importance. In this paper, the choice of the most optimal maintenance strategy out of the above-mentioned strategies is considered. For this purpose, expressions have been developed to determine the total costs associated with these maintenance strategies for electric motors. Based on these expressio

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Marpaung, Satria Buana, Din Aswan Amran Ritonga, and Ade Irwan. "ANALISA RISK PRIORITY NUMBER (RPN) TERHADAP KEANDALAN KOMPONEN MESIN THRESHER DENGAN MENGGUNAKAN METODE FMEA DI PT.XYZ." JiTEKH 9, no. 2 (2021): 74–81. http://dx.doi.org/10.35447/jitekh.v9i2.427.

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PT. XYZ is a palm oil factory (PKS) producing crude palm oil (CPO). PT. XYZ has not implemented an effective engine maintenance system. The maintenance system that has been implemented is corrective maintenance, which is making repairs when there is damage. In addition, it is also assisted with planned maintenance that is scheduled every week to clean production machines. Therefore it is necessary to identify machine components that are susceptible to damage (critical components) and it is necessary to take special care measures for critical machine components by implementing a predective main

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Gurski, A. S., and V. S. Ivashko. "Using transport telematics and remote diagnostics to improve vehicle maintenance and repair." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 3 (2020): 375–83. http://dx.doi.org/10.29235/1561-8358-2020-65-3-375-383.

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The article considers the possibility of using planned-prevention system in modern conditions. The system of vehicle telematics and remote diagnostics allows you to automate the getting of correction coefficients to determine the standard values of labor intensity of maintenance and repair and make calculations with high accuracy. The mileage before major repairs or write-off of the vehicle set by the manufacturer is also corrected for coefficients. The use tools of navigation allows you to determine the location of the vehicle in the coordinates of navigation maps with characteristics of the

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Popa, Ramona-Iuliana, Maria Catana, Gabriel Cimpoesu, Lucian Burlea, and Constantin Cărăușu. "PLANNING AND SCHEDULE OF MAINTENANCE WORKS FOR INJECTION MACHINES." International Journal of Manufacturing Economics and Management 1, no. 2 (2021): 41–51. http://dx.doi.org/10.54684/ijmem.2021.1.2.41.

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Keeping the equipment and machinery in working order is a very important activity in the field of industrial production, being specific to the maintenance department within an enterprise. Ensuring an optimal in operation of the manufacturing systems is closely related to the prevention of defects, an action that must be found in a planning and scheduling of preventive-planned maintenance works. In the paper, in addition to the introductory part on the main objectives and implementation of the maintenance system and maintenance-specific operations, a case study is conducted for the planning and

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Mezrina, N. M., and N. G. Sokolova. "METHODOLOGY FOR CALCULATING STANDARDS OF INVESTMENT FOR INNOVATION IN EQUIPMENT OF THE SERVICE OF MAINTENANCE AND REPAIR OF TECHNOLOGICAL EQUIPMENT." Bulletin of Udmurt University. Series Economics and Law 32, no. 1 (2022): 62–71. http://dx.doi.org/10.35634/2412-9593-2022-32-1-62-71.

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The purpose of planning maintenance and repair of maintenance and repair of equipment at industrial enterprises is to keep the equipment in working, technically sound condition, ensuring its high performance and uninterrupted operation. In the planning of maintenance and repair, primary attention is paid to identifying the investment needs for innovation in the equipment of the maintenance service, since the use of fundamentally new materials during the overhaul of equipment can lead to the creation of new methods of maintenance and repair of equipment and the use of technological innovations

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Fikri, Nidaru Ainul, and Endang Pudji Widjajati. "PENENTUAN INTERVAL PERAWATAN MESIN AIR SEPARATION PLANT SECARA PREVENTIVE DOWNTIME MAINTENANCE DENGAN MENGGUNAKAN METODE AGE REPLACEMENT PADA PT. XYZ." JUMINTEN 1, no. 3 (2020): 153–64. http://dx.doi.org/10.33005/juminten.v1i3.114.

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One way to increase productivity is by reducing downtime on production machine in general, downtime is divided by planned downtime and unplanned downtime. Downtime can be minimized by conducting preventive maintenance. PT. XYZ is a company engaged liquid oksigen, nitrogen and argon manufacturing. In their maintenance system PT. XYZ is still using corrective maintenance method where repair will be conducted if any damage has been occured. There fore this research is conducted to determine maintenance time interval using age replacement method. This research subject is air sparation plant

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Dyachenko, Viktoria. "Increasing the reliability of machines and the efficiency of their use in transportation processes in agro-industrial production using service logistics methods." Central Ukrainian Scientific Bulletin. Technical Sciences 1, no. 6(37) (2022): 215–27. http://dx.doi.org/10.32515/2664-262x.2022.6(37).1.215-227.

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The article considers the problem of increasing the reliability of machines and the efficiency of their use when transporting agricultural products. Increasing the reliability of machines at agro-industrial production enterprises is considered on the basis of improving the strategy of their technical maintenance and repair. At the same time, logistic service methods are used to provide the fleet of cars with the necessary spare parts. The theoretical justification of the formation of the composition of spare parts at the enterprise, its limitations and the supply system is given. It is noted t

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Вдович, С. А., and Н. Ф. Панова. "Improving information support for enterprise production resource management." Экономика и предпринимательство, no. 3(128) (May 13, 2021): 1012–18. http://dx.doi.org/10.34925/eip.2021.128.3.201.

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Статья посвящена вопросам разработки интеллектуальной информационной системы управления производственными ресурсами. Прикладное решение позволяет решать следующие задачи: вести учет оборудования, формировать и анализировать заявки на ремонт оборудования, составлять график плановых работ по диагностике и обслуживанию оборудования и оптимальный график планово-предупредительных работ, формировать производственный бюджет, вести учет и анализ заявок от подрядчиков, определять оптимального подрядчика по обслуживанию и ремонту оборудования, осуществлять анализ поломок оборудования и выявлять потенциа

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Hartini, Entin, Endiah Puji Hastuti, Geni Rina Sunaryo, et al. "PREDICTION OF REMAINING USEFUL LIFE FOR COMPONENTS IN SSC OF RSG-GAS BASED ON RELIABILITY ANALYSIS." JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA 24, no. 1 (2022): 9. http://dx.doi.org/10.17146/tdm.2022.24.1.6400.

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In the maintenance system, efforts are needed to improve the effectiveness of the maintenance system and organization. For effective maintenance planning it is necessary to have a good understanding of the reliability and component availability of the system. For this reason, it is necessary to determine the remaining component life using Remaining Useful Life (RUL), so that maintenance tasks can be planned effectively. The purpose of this study is to determine the remaining life of the safety A component from SSC RSG-GAS based on reliability analysis. The method used in this paper is a statis

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Kharchenko, Serhii, Viktor Baitsan, Dmytro Kosiakevych, and Serhii Lysenko. "Increasing the Efficiency of Using Fleets of Transport and Technological Vehicles by Improving the Maintenance and Repair System." Central Ukrainian Scientific Bulletin. Technical Sciences 2, no. 11(42) (2025): 382–93. https://doi.org/10.32515/2664-262x.2025.11(42).2.382-393.

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The article is devoted to identifying mechanisms for increasing the efficiency of using fleets of transport and technological machines by improving the maintenance and repair system. Directions for improving the organization of production for maintenance and repair of fleets of transport and technological machines are presented in order to increase the efficiency of their use. It is shown that the system of machines is formed with the creation of fleets of transport and technological machines. Among their characteristics, the purpose of the machines, their productivity level, age and operating

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Grabchak, E. P., and E. L. Loginov. "Digital approaches to management of electric and thermal powerengineering facilities using intelligent cyberphysical systems." Safety and Reliability of Power Industry 12, no. 3 (2019): 172–76. http://dx.doi.org/10.24223/1999-5555-2019-12-3-172-176.

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The article outlines the technology of managing electric and thermal power-engineering facilities using intelligent cyberphysical systems, implemented by remote monitoring of operated facilities and based on the ability to assess the technical condition of each equipment item (introducing risk-oriented management based on digital technologies). The technology includes coupled digital solutions that allow to quickly assess and predict the condition of the power system by comparing individual assessment data of the technical condition of the main technological equipment of electric and thermal p

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Vorobyov, A. A., and R. S. Smetanin. "Methodology for analyzing reliability of the equipment of electric locomotives 2ES10." Herald of the Ural State University of Railway Transport, no. 1 (2021): 28–39. http://dx.doi.org/10.20291/2079-0392-2021-1-28-39.

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The article deals with the analysis of reliability of the equipment of 2ES10 electric locomotives with asynchronous traction motors as a complex system and equipment failures that are often encountered during operation. All submitted failures are divided by type of equipment. Based on the Pareto analysis, the main limiting units of these electric locomotives with the lowest reliability are determined. Based on the Pareto analysis, the frequently failing elements of the main limiting components are determined, which are the mechanical part, wheel pairs, brake equipment, traction drive and tract

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Afanaseva, Ol'ga Vladimirovna. "Evaluation method for factors affecting marine diesel engine vibration caused by cylinder-piston group operation." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2024, no. 1 (2024): 84–94. http://dx.doi.org/10.24143/2073-1574-2024-1-84-94.

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The efficiency of the use of the marine fleet is associated with a reduction in the cost of transportation, the need for which is steadily increasing. A significant share of the total transportation costs is occupied by the costs associated with the operation of ships, therefore, reducing these costs is a reserve for reducing the cost of maritime transportation. The problem of increasing the efficiency of the operation of marine vessels is closely related not only to reducing the cost of it, but also to reducing the time for maintenance and repair of ships. The existing system of scheduled pre

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Katz, Danielle, Serena Kim, Alexandra King, et al. "Biomedical Machine Maintenance Scheduling." Industrial and Systems Engineering Review 9, no. 2 (2022): 110–16. http://dx.doi.org/10.37266/iser.2021v9i2.pp110-116.

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Tissue banks procure approximately 45,000 tissue donations per year, providing nearly 9,000,000 individuals (about half the population of New York) with life-enhancing and life-saving medical procedures. Proper biobank machine maintenance is imperative to this process. Mandatory forms of maintenance are critical to avoid unexpected malfunctions, which can halt operations and render samples unusable. Each machine has a unique reliability rate within the system; although some can quickly be repaired or replaced, many processes rely on limited machinery where even planned downtime can significant

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Kuric, Ivan, Ivana Klačková, Yury Rafailovich Nikitin, Ivan Zajačko, Miroslav Císar, and Karol Tucki. "Analysis of Diagnostic Methods and Energy of Production Systems Drives." Processes 9, no. 5 (2021): 843. http://dx.doi.org/10.3390/pr9050843.

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This article deals with solving the urgent scientific problem of the diagnostics of drives of technological robotized workplaces with support of sensors. The dependence of diagnostic parameters on the technical state of drives of automated technological systems, which is of great economic importance for industrial enterprises, is being investigated. Diagnostic models have been developed based on sensory systems to diagnose drive models of technological robotized workplaces. The use of these models may also include monitoring systems in which it is possible to build a system for identifying det

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Gaponenko, Alexander, and Mikhail Bushuev. "Approaches in the Planning of Planned-Preventive Setup and Evaluation of Rail Way State." Proceedings of Petersburg Transport University 19, no. 1 (2022): 7–16. http://dx.doi.org/10.20295/1815-588x-2022-19-1-7-16.

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Purpose: The research of the matters of planning of planned-preventive setup of a rail way and the analysis of rail track geometry condition before and after the pursing of the setup basing on data of track measuring car passage have shown that existing criteria of the assignment of track planned-preventive setup do not consider exploitation conditions and their reconsideration is demanded. Methods: Statistical methods were used in research pursuing on the matters of planning and evaluation of railway track condition after work fulfillment on planned-preventive setup. Data sampling and analysi

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Tarasenko, Serhii, Andriy Levchenko, and Volodimir Demyanishin. "USE OF THE OPERATOR MODEL OF THE OPERATION OF WEAPONS AND MILITARY EQUIPMENT FOR THE FORMATION OF SERVICE FLOWS AND RESTORATION IN THE DECISION SUPPORT SYSTEMS OF LOGISTICS OFFICERS." Collection of scientific works of Odesa Military Academy, no. 16 (February 11, 2022): 74–81. http://dx.doi.org/10.37129/2313-7509.2021.16.74-81.

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The analysis of the organization of training of personnel on equipment indicates the imperfection of calculations of the needs of equipment to achieve the qualitative goal of training, respectively, the ineffective use of forces and means. There are systemic omissions in the background of the organization of the technical condition recovery system, high-quality planning and forecasting of the main failures of the technical condition, thereby an imperfectly thought-out data processing system for the provision of spare parts for equipment, information about which should be available on the inter

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YAROVYI, Serhii, Dymytrii CHEREDNIK, and Oleksandr DANYLCHENKO. "PHYSICAL AND STATISTICAL METHOD OF ESTIMATING THE DURABILITY OF METAL VENTILATION AND CHIMNEY PIPES." Scientific Bulletin of Building, no. 112 (June 30, 2025): 294–301. https://doi.org/10.33042/2311-7257.2025.112.1.36.

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The article deals with a complex and urgent engineering problem - ensuring the durability and operational reliability of metal ventilation and chimney pipes operating under aggressive environmental conditions. The main attention is focused on the development of a physical and statistical method for assessing the technical condition and predicting the service life of structures, taking into account the stochastic nature of degradation processes. The paper notes that classical approaches do not allow taking into account the random variability of material parameters and external loads, which limi

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Oszczypała, Mateusz, Jarosław Ziółkowski, and Jerzy Małachowski. "Modelling the Operation Process of Light Utility Vehicles in Transport Systems Using Monte Carlo Simulation and Semi-Markov Approach." Energies 16, no. 5 (2023): 2210. http://dx.doi.org/10.3390/en16052210.

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This research paper presents studies on the operation process of the Honker 2000 light utility vehicles that are part of the Polish Armed Forces transport system. The phase space of the process was identified based on the assumption that at any given moment the vehicle remains in one of four states, namely, task execution, awaiting a transport task, periodic maintenance, or repair. Vehicle functional readiness and technical suitability indices were adopted as performance measures for the technical system. A simulation model based on Monte Carlo methods was developed to determine the changes in

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Migawa, Klaudiusz, Sylwester Borowski, Andrzej Neubauer, and Agnieszka Sołtysiak. "Semi-Markov Model of the System of Repairs and Preventive Replacements by Age of City Buses." Applied Sciences 11, no. 21 (2021): 10411. http://dx.doi.org/10.3390/app112110411.

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The paper presents a mathematical model of the system of repairs and preventive replacements by age of city buses. The mathematical model was developed using the theory of semi-Markov processes. In the model developed, four types of city bus renewal processes are considered and three types of corrective repairs and preventive replacement. Corrective repairs are considered in two types: minimal repairs (repairs carried out by the Technical Service units) and perfect repairs (repairs carried out at the stations of the Service Station). The models of restoration systems that use semi-Markov proce

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KUSHNAREV, L. I. "THE PROBLEM OF INCREASING THE RELIABILITY OF MACHINERY AND EQUIPMENT." Tekhnicheskiy servis mashin 62, no. 2 (2024): 5–9. http://dx.doi.org/10.22314/2618-8287-2024-62-2-5-9.

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The basis for a satisfactory level of operability of modern machines and equipment of domestic production was and remains the engineering and technical service of equipment and the "Planned preventive maintenance and repair system of machines in agriculture." Timely implementation of mechanized processes and work with low reliability of agricultural machinery requires an increase in the level of reliability and serviceability of the fleet of machines and equipment. (Research purpose) The research purpose is increasing the operational reliability of modern agricultural machinery based on the de

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Sheu, Shey-Huei. "A modified block replacement policy with two variables and general random minimal repair cost." Journal of Applied Probability 33, no. 2 (1996): 557–72. http://dx.doi.org/10.2307/3215079.

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This paper considers a modified block replacement with two variables and general random minimal repair cost. Under such a policy, an operating system is preventively replaced by new ones at times kT (k= 1, 2, ···) independently of its failure history. If the system fails in [(k − 1)T, (k − 1)T+ T0) it is either replaced by a new one or minimally repaired, and if in [(k − 1) T + T0, kT) it is either minimally repaired or remains inactive until the next planned replacement. The choice of these two possible actions is based on some random mechanism which is age-dependent. The cost of the ith mini

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Sheu, Shey-Huei. "A modified block replacement policy with two variables and general random minimal repair cost." Journal of Applied Probability 33, no. 02 (1996): 557–72. http://dx.doi.org/10.1017/s0021900200099976.

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This paper considers a modified block replacement with two variables and general random minimal repair cost. Under such a policy, an operating system is preventively replaced by new ones at timeskT(k=1, 2, ···) independently of its failure history. If the system fails in [(k − 1)T,(k− 1)T+T0) it is either replaced by a new one or minimally repaired, and if in [(k− 1)T+T0, kT) it is either minimally repaired or remains inactive until the next planned replacement. The choice of these two possible actions is based on some random mechanism which is age-dependent. The cost of theith minimal repair

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Sheu, Shey-Huei. "Optimal block replacement policies with multiple choice at failure." Journal of Applied Probability 29, no. 1 (1992): 129–41. http://dx.doi.org/10.2307/3214797.

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A generalization of the block replacement policy (BRP) is proposed and analysed. Under such a policy, an operating system is preventively replaced at times kT (k = 1, 2, 3, ···), independently of its failure history. At failure an operating system is either replaced by a new or a used one or minimally repaired or remains inactive until the next planned replacement. The cost of the ith minimal repair of the new subsystem at age y depends on the random part C(y) and the deterministic part ci(y). The mathematical model is defined and general analytical results are obtained.

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Sheu, Shey-Huei. "Optimal block replacement policies with multiple choice at failure." Journal of Applied Probability 29, no. 01 (1992): 129–41. http://dx.doi.org/10.1017/s0021900200106680.

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A generalization of the block replacement policy (BRP) is proposed and analysed. Under such a policy, an operating system is preventively replaced at times kT (k = 1, 2, 3, ···), independently of its failure history. At failure an operating system is either replaced by a new or a used one or minimally repaired or remains inactive until the next planned replacement. The cost of the ith minimal repair of the new subsystem at age y depends on the random part C(y) and the deterministic part ci (y). The mathematical model is defined and general analytical results are obtained.

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Khavruk, V. O. "Evaluation of Reserves for Improving the Efficiency of Using Rolling Stock of a Motor Transport Enterprise." Science and Transport Progress, no. 2(98) (June 26, 2022): 17–25. http://dx.doi.org/10.15802/stp2022/267938.

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Purpose. The work is aimed to analyze the components of the target function of reducing costs for the operation and maintenance of motor vehicles (buses) and determine the optimal periodicity of planned repairs. Methodology. The research was carried out using general scientific methods: analysis and synthesis, abstraction and concretization, induction and deduction, system analysis. Findings. In order to estimate reserves for improving the efficiency of rolling stock, the target function of minimizing costs (losses) during the operation of motor vehicles using the example of buses is given, wh

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Z Taj, S., S. M Rizwan, B. M Alkali, D. K Harrison, and G. Taneja. "Performance Analysis of a Rod Breakdown System." International Journal of Engineering & Technology 7, no. 3.4 (2018): 243. http://dx.doi.org/10.14419/ijet.v7i3.4.16782.

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The paper presents performance analysis of a rod breakdown system consisting of two machines operating in parallel. Ten years maintenance data of the system depicts three maintenance practices: repair, major preventive maintenance and minor preventive maintenance. Machines are repaired on normal failures, whereas major/minor preventive maintenance is carried out at scheduled basis. The machines are queued for major preventive maintenance. An operative machine requires a cooling period of half hour before undergoing major preventive maintenance. Repair is prioritized over major preventive maint

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Okulewicz, Józef, and Tadeusz Salamonowicz. "Preventive Maintenance with Imperfect Repairs of a System with Redundant Objects." Journal of Konbin 8, no. 1 (2008): 157–70. http://dx.doi.org/10.2478/v10040-008-0110-y.

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Preventive Maintenance with Imperfect Repairs of a System with Redundant ObjectsAn object ability to realise tasks may be restored by repairing only failed components. This is called imperfect repair, as the object is not as good as new after such a repair. Preventive replacement is an example of imperfect repair as well. The advantage of such maintenance is that it enables controlling a reliability level of a system. Sets of objects' components that should be replaced are derived on a basis of statistical diagnosing with use of data about components failures. The acceptable level of a failure

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