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Journal articles on the topic 'Operation and maintenance policy'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Shin, Jong-Ho, and Hong-Bae Jun. "On condition based maintenance policy." Journal of Computational Design and Engineering 2, no. 2 (2015): 119–27. http://dx.doi.org/10.1016/j.jcde.2014.12.006.

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Abstract In the case of a high-valuable asset, the Operation and Maintenance (O&M) phase requires heavy charges and more efforts than the installation (construction) phase, because it has long usage life and any accident of an asset during this period causes catastrophic damage to an industry. Recently, with the advent of emerging Information Communication Technologies (ICTs), we can get the visibility of asset status information during its usage period. It gives us new challenging issues for improving the efficiency of asset operations. One issue is to implement the Condition-Based Mainte

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Bányai, Ágota. "Energy Consumption-Based Maintenance Policy Optimization." Energies 14, no. 18 (2021): 5674. http://dx.doi.org/10.3390/en14185674.

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The optimal predictive, preventive, corrective and opportunistic maintenance policies play an important role in the success of sustainable maintenance operations. This study discusses a new energy efficiency-related maintenance policy optimization method, which is based on failure data and status information from both the physical system and the digital twin-based discrete event simulation. The study presents the functional model, the mathematical model and the solution algorithm. The maintenance optimization method proposed in this paper is made up of four main phases: computation of energy c

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Ye, Meng-Hua. "Optimal replacement policy with stochastic maintenance and operation costs." European Journal of Operational Research 44, no. 1 (1990): 84–94. http://dx.doi.org/10.1016/0377-2217(90)90317-5.

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4

Shang, Lijun, Xiguang Yu, Liying Wang, and Yongjun Du. "Design of Random Warranty and Maintenance Policy: From a Perspective of the Life Cycle." Mathematics 10, no. 20 (2022): 3723. http://dx.doi.org/10.3390/math10203723.

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Driven by digital technologies, it is possible that high-tech equipment management personnel use monitored job cycles to ensure products’ operation and maintenance over their life cycle. By means of monitored job cycles, this paper designs two categories of random maintenance policies: a two-stage two-dimensional free repair warranty (2DFRW) policy and a random hybrid periodic replacement (RHPR) policy. The 2DFRW policy is performed to ensure the product’s operation and maintenance over the warranty stage. Under such a policy, a product is minimally repaired at each failure, and regions of the

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Righter, Rhonda. "OPTIMAL MAINTENANCE AND OPERATION OF A SYSTEM WITH BACKUP COMPONENTS." Probability in the Engineering and Informational Sciences 16, no. 3 (2002): 339–49. http://dx.doi.org/10.1017/s0269964802163054.

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We consider a system with heterogeneous unreliable components that requires only one component to be turned on in order for it to operate. Repair workers may have different skills and may be unavailable for random periods of time. The problem is to determine a usage and repair policy to maximize system availability. We give conditions under which the optimal usage policy is to always use, or turn on, the component with the shortest repair time, and the optimal repair policy is to always repair the most reliable component (with the smallest failure rate). We fully characterize the optimal polic

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Su, H. S., and J. D. Li. "Research and Simulation on Repairable Device Preventive Maintenance Control Policy." Applied Mechanics and Materials 743 (March 2015): 189–95. http://dx.doi.org/10.4028/www.scientific.net/amm.743.189.

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In consideration of the situation that the conventional preventive maintenance inspection cycle of the repairable device is not be changed as long as it is determined, based on continuous-time Markov processes, the repairable device preventive maintenance control strategy is studied. The preventive maintenance model is established, i.e., its state transition diagram, steady state value of the model is calculated, the control policy of device’s check rates based on device status is proposed, and the proposed control policy is simulated and confirmed using MATLAB. Simulation results show that un

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Bérenguer, C., A. Grall, L. Dieulle, and M. Roussignol. "MAINTENANCE POLICY FOR A CONTINUOUSLY MONITORED DETERIORATING SYSTEM." Probability in the Engineering and Informational Sciences 17, no. 2 (2003): 235–50. http://dx.doi.org/10.1017/s0269964803172063.

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We consider a continuously monitored system that gradually and stochastically deteriorates. An alarm threshold is set on the system deterioration level for triggering a delayed preventive maintenance operation. A mathematical model is developed to find the value of the alarm threshold that minimizes the asymptotic unavailability. Approximations are derived to improve the numerical optimization.

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Pinciroli, Luca, Piero Baraldi, Guido Ballabio, Michele Compare, and Enrico Zio. "Deep Reinforcement Learning Based on Proximal Policy Optimization for the Maintenance of a Wind Farm with Multiple Crews." Energies 14, no. 20 (2021): 6743. http://dx.doi.org/10.3390/en14206743.

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The life cycle of wind turbines depends on the operation and maintenance policies adopted. With the critical components of wind turbines being equipped with condition monitoring and Prognostics and Health Management (PHM) capabilities, it is feasible to significantly optimize operation and maintenance (O&M) by combining the (uncertain) information provided by PHM with the other factors influencing O&M activities, including the limited availability of maintenance crews, the variability of energy demand and corresponding production requests, and the long-time horizons of energy systems o

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Faidy, C., and J. P. Hutin. "Plant life management: an integral part of operation and maintenance policy." Kerntechnik 67, no. 4 (2002): 196–99. http://dx.doi.org/10.1515/kern-2002-0080.

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Abstract Electricité de France is now operating 58 PWR nuclear power plants that produce 75 % of electricity in France. Besides maintaining safety and availability on a routine basis, it is outmost important to protect the investment. That is the reason why EDF is devoting important resources to implement ageing management concern as an integral part of operation and maintenance programs (for example through appropriate data collection and analysis, specific repair and replacement projects and important anticipation efforts, taking in account the high level of standardisation of the units). A

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10

Xia, Tang-Bin, Xin-Yang Tao, and Li-Feng Xi. "Operation Process Rebuilding (OPR)-Oriented Maintenance Policy for Changeable System Structures." IEEE Transactions on Automation Science and Engineering 14, no. 1 (2017): 139–48. http://dx.doi.org/10.1109/tase.2016.2618767.

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Martinod, R. M., Olivier Bistorin, Leonel Castañeda, and Nidhal Rezg. "Joint optimisation of operation and maintenance policies in an urban ropeway transport systems context." International Journal of Quality & Reliability Management 36, no. 7 (2019): 1106–36. http://dx.doi.org/10.1108/ijqrm-10-2018-0292.

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Purpose The purpose of this paper is to propose a stochastic optimisation model for integrating service and maintenance policies in order to solve the queuing problem and the cost of maintenance activities for public transport services, with a particular focus on urban ropeway system. Design/methodology/approach The authors adopt the following approaches: a discrete-event model that uses a set of interrelated queues for the formulation of the service problem using a cost-based expression; and a maintenance model consisting of preventive and corrective maintenance actions, which considers two d

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Mosser, Segolene Clemence Marie. "Maintenance modelling and optimization in the industry 4.0 context: Applications to the maintenance and design of industrial vehicles." Sustainable Engineering and Innovation 3, no. 2 (2021): 130–38. http://dx.doi.org/10.37868/sei.v3i2.id148.

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This paper focused on the maintenance problems encountered by industrial vehicles within the Volvo Group. The main goal of the research on this subject was to propose to customers’ a personalized maintenance offer which adapts to their constraints while reducing the impact on the operating costs. To achieve this, a policy has been developed. This policy works on the dynamic gathering of information using both the available monitoring information and the knowledge of the multi-component system. Its objective is to guarantee to the customer the autonomy of its system over given periods of operat

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Ab-Samat, Hasnida, and Shahrul Kamaruddin. "Opportunistic maintenance (OM) as a new advancement in maintenance approaches." Journal of Quality in Maintenance Engineering 20, no. 2 (2014): 98–121. http://dx.doi.org/10.1108/jqme-04-2013-0018.

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Purpose – This paper reviews the literature on opportunistic maintenance (OM) as new advance maintenance approach and policy. The purpose of this paper is to conceptually identify common principle and thereby provide absolute definition, concept and characteristics of this policy. Design/methodology/approach – A conceptual analysis was conducted on various literatures to clarify a number of principle and concepts as a method for understanding information on OM. The analysis involves the process of separating the compound terms used in the literatures into a few parts, analyse them and then rec

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LIAO, GWO-LIANG, and BOR-LING SHAW. "OPTIMAL MAINTENANCE POLICY TO SUPPORT THE OPERATION OF MANUFACTURING WITH MINIMAL AND DELAYED REPAIR." International Journal of Reliability, Quality and Safety Engineering 16, no. 03 (2009): 235–47. http://dx.doi.org/10.1142/s021853930900337x.

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This work presents a periodic preventive maintenance (PM) model for a repairable system that undergoes minimal repair or delayed repair at each failure to keep a plant operating. Two PM types are performed, i.e. imperfect PM and perfect PM. The likelihood that PM is perfect depends on the number of imperfect maintenance activities have been performed since the last renewal cycle. Mathematical formulae for expected cost per unit time are developed. The optimal period for periodic PM, which minimizes cost, is identified. Various special cases are considered, including the maintenance learning ef

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Pinceti, Paolo, Micaela Caserza Magro, Enrico De Paola, Pierluigi Firpo, Enrico Marino, and Marco Antonelli. "CBM for a fleet of railway vehicles: infrastructure and algorithms." ACTA IMEKO 5, no. 4 (2016): 56. http://dx.doi.org/10.21014/acta_imeko.v5i4.412.

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<p>Data acquisition and communication technologies give the possibility of receiving and storing a huge amount of data from machinery and plants in operation. From these data it is possible to create a set of Key Maintenance Indicators (KMI) useful for optimizing the maintenance policy. Raw data from the field are to be processed and filtered for obtaining effective KMIs to use in algorithms aimed at discovering anomalies or abnormal operation of one or more machineries or plants.</p><p>This paper presents a roadmap towards the Condition Based Maintenance of a fleet of railwa

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Ogwang, Patrick, and David Mwesigwa. "Road Asset Management System and Operation and Maintenance of World Bank-Funded Roads in Lira City, Uganda." International Journal of Public Policy and Administration 5, no. 2 (2023): 42–68. http://dx.doi.org/10.47941/ijppa.1441.

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Purpose: This study examined the contribution of road asset management to the operations and maintenance of World Bank funded roads in Lira City East division. Specifically, the study focussed on the effect of data collection, data management; and data analysis on operation and maintenance of World Bank funded roads in Lira City East division. Methodology: The study adopted a cross-sectional study design, which employed a mixed methods approach of both quantitative and qualitative methods. The study population consisted of 82 respondents, which involved political leaders, technical staff

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Banyai, A. "Impact of agile, condition-based maintenance strategy on cost efficiency of production systems." Advances in Production Engineering & Management 18, no. 3 (2023): 317–26. http://dx.doi.org/10.14743/apem2023.3.475.

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Maintenance plays an increasingly important role in the life of production companies, as professional maintenance is an important prerequisite for the reliable operation of resources. A well-chosen maintenance strategy can make a major contribution to increased efficiency of production processes. The main goal of this research is to propose a novel optimization approach to define optimal maintenance strategy that ensures the efficient operation of the production process while reducing maintenance costs. The developed optimization method is based on Howard’s policy iteration and describes the o

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Jiao, Zedong, Xiuli Du, Zhansheng Liu, et al. "A Review of Theory and Application Development of Intelligent Operation Methods for Large Public Buildings." Sustainability 15, no. 12 (2023): 9680. http://dx.doi.org/10.3390/su15129680.

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This article aims to systematically summarize the methods for intelligent operation of large public buildings, the integration and application of related technologies, as well as their development trends and challenges. (1) Background: In response to the rapid development and future needs of intelligent operation and maintenance, this study summarizes the development process of intelligent operation and maintenance in building operations, as well as relevant technical achievements and challenges; (2) Method: Quantitative and qualitative bibliometric statistical methods were used for overall an

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Kumari, Jaya, Ramin Karim, and Parul Khanna. "Dynamic maintenance policy development for railway rolling stock." Journal of Quality in Maintenance Engineering 31, no. 5 (2025): 23–42. https://doi.org/10.1108/jqme-01-2024-0005.

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PurposeThis paper proposes an approach for the development of a dynamic maintenance policy for the railway rolling stock system considering the dynamic characteristics of the system, the operation environment, and the maintenance process. The proposed approach can also be applied to other similar complex technical systems.Design/methodology/approachThis study explores the state-of-the-art in dynamic maintenance policy development for railway rolling stock to identify the research gap. The proposed approach is demonstrated through a case study on dynamic maintenance policy development for railw

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Verbruggen, Theo, Luc Rademakers, Patrick Roost, and Gerhard Dersjant. "Maintenance Manager to control operation and maintenance of offshore wind farms." International Journal of Environment and Sustainable Development 1, no. 4 (2002): 370. http://dx.doi.org/10.1504/ijesd.2002.002357.

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Ma, Yuanjiang, Liang Hong, Taisong Qin, Xia Hao, and Taiquan Tan. "Research on Monitoring Data Security Sharing Method for Hydropower Station Operation and Maintenance." Journal of Physics: Conference Series 2294, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1742-6596/2294/1/012009.

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Abstract The computer monitoring system centrally and uniformly manages the hydropower stations in the basin, which has high operation efficiency. The current data security sharing methods can not solve the multi-party trust problems such as data ownership and data security. In this regard, a monitoring data security sharing method for hydropower station operation and maintenance is proposed. The monitoring data of hydropower station comes from multiple independent operation systems developed by different suppliers according to different application requirements. The multi-source data are inte

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Badía, F. G., M. D. Berrade, and Clemente A. Campos. "Maintenance policy for multivariate standby/operating units." Applied Stochastic Models in Business and Industry 18, no. 2 (2002): 147–55. http://dx.doi.org/10.1002/asmb.459.

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Boyapati, Raghuram P., Jahnavi Mehta, and Paul Norris. "Same day cancellations of elective operations in a tertiary hospital in south-east England: a review of 11 000 patients in 1 year." British Journal of Healthcare Management 26, no. 1 (2020): 27–33. http://dx.doi.org/10.12968/bjhc.2019.0029.

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Cancellations of elective operations have negative consequences, both for patients and the NHS. For the latter, reducing waiting times for surgical procedures remains a pressing concern, as does maintenance of adequate staffing. This study aimed to identify factors contributing to the cancellation of elective operations on the day of the procedure in order to suggest measures that could be taken to reduce these incidents. The retrospective details of just over 11 000 patients awaiting theatre admission for elective operations over a period of 1 year were obtained. The reasons behind last-minut

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Rahmawati, Fajar Khanif, and Humaid Iswahyu Hafizh Rakha. "Advantages and Losses Analysis on Burning Hours by The Production Planning Control in Determining Time Implementation of Maintenance Activities." Vortex 2, no. 2 (2021): 1. http://dx.doi.org/10.28989/vortex.v2i2.981.

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Burning Hours is the one of policy in scheduling aircraft maintenance. With the burning hours the operator could performed aircraft maintenance before the due time. Burning Hours is indeed beneficial for flight operators to maintain the stability of the safety of the aircraft operation. Using the quantitative analysis method with the sample data’s from two aircraft, found that the burning hours affects to Burning Hours Cost loss for every aircraft meintenance activity. The value of Burning Hours Cost Loss and Potential Lost per Day needs to be considered by operators in scheduling maintenance

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Sugimura, Yoshihisa, Kazuhiko Ishiguro, and Azuma Kato. "Possibility of Sustainable Entry into Overseas Port Operation Markets by Japanese Companies." Sustainability 14, no. 19 (2022): 12167. http://dx.doi.org/10.3390/su141912167.

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The Japanese government has set an overseas infrastructure deployment policy to involve Japanese companies in all upstream to downstream processes, that is, from project formation, procurement, and construction to operation and maintenance. Although Japanese companies have been hitherto involved in overseas port development through Official Development Assistance, their entry into overseas port operation projects has been limited, meaning the realization of the policy is not expected to be easy. This study thus examines the possibility of sustainable entry into overseas port operation markets

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Ge, En Shun, Qing Min Li, and Ao Lin Huang. "Optimization of Condition-Based Maintenance Policy for Deteriorating System Based on Monte-Carlo Simulation." Advanced Materials Research 544 (June 2012): 44–48. http://dx.doi.org/10.4028/www.scientific.net/amr.544.44.

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Condition-based Maintenance (CBM) can not only efficiently improve the performance of deteriorating system but also guarantee the system operation safety. This paper assumes that the system state is periodically inspected, and a preventive maintenance is performed if the degradation level exceeds a threshold. The effect of maintenance is imperfect, which means that maintenance can restore the system state to somewhere between as good as new and as bad as old. The algorithm is presented to get the solution of long run cost based on Monte-Carlo simulation, and the joint optimization of inspectio

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An-Pi Chang and Jyh-Dong Lin. "DEFINING GREEN ROAD PROJECT MANAGEMENT SCOPE BY PDRI." International Journal of Engineering Technologies and Management Research 5, no. 10 (2020): 94–102. http://dx.doi.org/10.29121/ijetmr.v5.i10.2018.305.

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This study is about the project early operation content of the green road development, takes full account of the operation items of various stages of the life cycle, by the use of special case define the Project Definition Rating Index (PDRI). PDRI assessment framework, defining the need and scope of green road project development operations in the metropolitan area, and inquire set various assessment indicators of the work to complete building the overall indicator assessment system. From research in a policy aspect, as well as data collection out of instances of project case, research progra

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Yang, Seungbong. "Optimized operation of regional reserve forces in a changing future security environment." Journal of Advances in Military Studies 4, no. 3 (2021): 21–51. http://dx.doi.org/10.37944/jams.v4i3.121.

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The Republic of Korea Reserve Forces (ROKRF), established in 1968, continue to function through continuous changes such as improving laws and systems and optimizing organizations while complying with social and policy changes. However, the reduction of standing forces, changes in the operating environment, and the reduction of reserve forces required to carry out operations require the re-establishment of the concept of operation of regional reserve forces. In this study, we aimed to diagnose the phenomenon of regional reserve groups and derive an optimized operation plan for regional reserve

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An-Pi, Chang, and Lin Jyh-Dong. "DEFINING GREEN ROAD PROJECT MANAGEMENT SCOPE BY PDRI." International Journal of Engineering Technologies and Management Research 5, no. 10 (2018): 94–102. https://doi.org/10.5281/zenodo.1491892.

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This study is about the project early operation content of the green road development, takes full account of the operation items of various stages of the life cycle, by the use of special case define the Project Definition Rating Index (PDRI). PDRI assessment framework, defining the need and scope of green road project development operations in the metropolitan area, and inquire set various assessment indicators of the work to complete building the overall indicator assessment system. From research in a policy aspect, as well as data collection out of instances of project case, research progra

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Zhao, Xufeng, Khalifa N. Al-Khalifa, Abdel Magid Hamouda, and Toshio Nakagawa. "What is Middle Maintenance Policy?" Quality and Reliability Engineering International 32, no. 7 (2015): 2403–14. http://dx.doi.org/10.1002/qre.1944.

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Damerdji, Rima Oudjedi, and Myriam Noureddine. "Maintenance Decision-Making Under the Cost Criterion and the Competing Risks Approach." International Journal of Decision Support System Technology 9, no. 1 (2017): 32–48. http://dx.doi.org/10.4018/ijdsst.2017010103.

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The definition of an appropriated maintenance policy appears essential to avoid the system failures and ensure its optimal operation, while taking into account the criteria of availability and costs. This article deals with a maintenance decision-making for a system subject to two competing maintenance actions, corrective and preventive maintenance. To define this situation of dependent competing risks, the Alert Delay model seems well suited because it involves the notion of a delivered alert before system failure in order to perform preventive maintenance. This paper proposes an approach inc

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Monteiro Tavares, Carla Mericia, and Janusz Szpytko. "Maintenance strategy for vehicle with electronic fuel injection system." Journal of KONBiN 42, no. 1 (2017): 379–88. http://dx.doi.org/10.1515/jok-2017-0034.

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Abstract The introduction of new vehicles technology has been projected for advanced technologically places. Their use and operation, is a theme of big concern for developing countries. This work is part of the study for the creation and establishment of a maintenance strategy and policy, which will be acceptable in developing countries. The paper proposes a methodology for the identification of critical components of the electronic fuel injection system with failure mode, effects and criticality analysis tool (FMECA). With the elaboration of this work, was possible to visualize that the maint

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Zhou, Xue, Yajian Ke, Jianhui Zhu, and Weiwei Cui. "Sustainable Operation and Maintenance of Offshore Wind Farms Based on the Deep Wind Forecasting." Sustainability 16, no. 1 (2023): 333. http://dx.doi.org/10.3390/su16010333.

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Offshore wind farms are becoming a pivotal solution to address the increasing energy demand worldwide and reduce carbon emissions to achieve a sustainable energy sector. Considering the higher operational and maintenance cost of offshore wind farms, it is important to make a good maintenance plan to guarantee the system’s reliability and reduce the total cost related to maintenance activities at the same time. Because maintenance planning is a long-term decision problem and the wind force is random, long-term wind force prediction is needed to help managers evaluate the loss caused by maintena

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Lagos, Carlos, Felipe Delgado, and Mathias A. Klapp. "Dynamic Optimization for Airline Maintenance Operations." Transportation Science 54, no. 4 (2020): 998–1015. http://dx.doi.org/10.1287/trsc.2020.0984.

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The occurrence of unexpected aircraft maintenance tasks can produce expensive changes in an airline’s operation. When it comes to critical tasks, it might even cancel programmed flights. Despite this, the challenge of scheduling aircraft maintenance operations under uncertainty has received limited attention in the scientific literature. We study a dynamic airline maintenance scheduling problem, which daily decides the set of aircraft to maintain and the set of pending tasks to execute in each aircraft. The objective is to minimize the expected costs of expired maintenance tasks over the opera

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Messaoud, Benzouai, and Titouna Dalila. "Maintenance optimization policy in the dairy industry. A case study." South Florida Journal of Development 5, no. 12 (2024): e4803. https://doi.org/10.46932/sfjdv5n12-040.

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The objective is to present, through a case study the partial or total deployment of quality methods and tools. This is to establish an optimization and organization policy of a maintenance, by taking into account the specificities of the dairy industry in terms of size which is generally small, fragility of the manufacturing process, the labor system based on a continuous 3x8 mode and especially in terms of the technological manufacturing process that does not support any quick stop, which may effect the organoleptic and bacteriological quality materials and foods during processing. The opera

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Fang, Tingchen, Yiming Zhao, Jian Gong, Feiliang Wang, and Jian Yang. "Investigation on Maintenance Technology of Large-Scale Public Venues Based on BIM Technology." Sustainability 13, no. 14 (2021): 7937. http://dx.doi.org/10.3390/su13147937.

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Recently, the digital operation and maintenance of large-scale public venues have received increasing attention. The traditional building automation system (BAS), which can only provide information in a non-visualized way, is incapable of meeting the complex requirements of modern operation and maintenance. Therefore, a 3D-based building information modeling (BIM) technology is needed to improve operation and maintenance efficiency. In the paper, a BAS-to-BIM combined strategy is introduced, and the BIM-based maintenance object framework for large-scale public venues is re-built. The conversio

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LIM, JAE-HAK, and DONG HO PARK. "OPTIMAL PERIODIC PREVENTIVE MAINTENANCE SCHEDULES WITH IMPROVEMENT FACTORS DEPENDING ON NUMBER OF PREVENTIVE MAINTENANCES." Asia-Pacific Journal of Operational Research 24, no. 01 (2007): 111–24. http://dx.doi.org/10.1142/s0217595907001139.

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This paper considers a periodic preventive maintenance policy under which each preventive maintenance (PM) reduces the hazard rate of the repairable system, while keeping the pattern of hazard rate unchanged. For this model, the hazard rate at a given time t is affected by the improvement factor which depends on the number of PMs conducted until t. In addition to the periodic preventive maintenance, the system undergoes the minimal repair at each failure between the preventive maintenances. We derive mathematical formulas to evaluate the expected cost rate per unit time by computing the expect

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Khanna, Aditi, Prerna Gautam, Biswajit Sarkar, and Chandra K. Jaggi. "Integrated vendor–buyer strategies for imperfect production systems with maintenance and warranty policy." RAIRO - Operations Research 54, no. 2 (2020): 435–50. http://dx.doi.org/10.1051/ro/2019029.

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Collaboration has evolved as a key component of many modern supply chains, supporting the competitive advantages of companies in a range of operations from manufacturing to sales. With this viewpoint, the present paper develops an integrated inventory model in which manufacturing is carried out at the vendor’s end so as to fulfill demand at the buyer’s doorway. As the production process is presumed to be imperfect it shifts from an “in-control” state to “out-of-control” state at any random time and yields non-conforming items. The vendor uses regular preventive maintenance actions for the effi

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EL-FERIK, SAMI, and MOHAMMED BEN-DAYA. "INTEGRATED PRODUCTION MAINTENANCE MODEL UNDER IMPERFECT AGE-BASED MAINTENANCE POLICY AND NON-NEGLIGIBLE MAINTENANCE TIMES." Asia-Pacific Journal of Operational Research 27, no. 04 (2010): 539–58. http://dx.doi.org/10.1142/s0217595910002843.

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This paper deals with an integrated production maintenance model where preventive maintenance (PM) activities are carried out at the end of each production run or at failure, whichever of them occurs first. PM activities take a fixed amount of time. However, due to the random nature of failures, the stock built during the production period may deplete before the next production run starts, leading to some loss in demand. After N production runs, the process is replaced (or undergoes a major repair), which brings it to the "as-good-as-new" condition. A mathematical model is derived for this pro

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Indriartiningtias, Retno, Untung Fadel Ibrahim, and Ika Deefi Anna. "Preventive Maintenance Policy to Improve the Effectiveness of XYZ Machine." E3S Web of Conferences 517 (2024): 05025. http://dx.doi.org/10.1051/e3sconf/202451705025.

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PT ABC which is a manufacturing company that produces steel pipes. The last period there was an XYZ machine that often downtime and disrupted the production process. The breakdowns indicate the ineffectiveness of machine. It was necessary to identify and analyze the problems that occurred and the factors that caused the problem. Measurement of machine effectiveness dan it caused is carried out using the OEE method. To avoid the recurrence of machine ineffectiveness, machine maintenance is carried out in a preventive manner according to the spare parts classification (there are 3 classification

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Jayakumar, Archana, and Sohrab Asgarpoor. "MAINTENANCE OPTIMIZATION OF EQUIPMENT BY LINEAR PROGRAMMING." Probability in the Engineering and Informational Sciences 20, no. 1 (2005): 183–93. http://dx.doi.org/10.1017/s0269964806060128.

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Optimal levels of preventive maintenance performed on any system ensures cost-effective and reliable operation of the system. In this paper a component with deterioration and random failure is modeled using Markov processes while incorporating the concept of minor and major preventive maintenance. The optimal mean times to preventive maintenance (both minor and major) of the component is determined by maximizing its availability with respect to mean time to preventive maintenance. Mathematical optimization programs Maple 7 and Lingo 7 are used to find the optimal solution, which is illustrated

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Bukša, Ante, Ivica Šegulja, and Vinko Tomas. "Adjustment of Maintenance Approach for Improved Operability and Safety of Ship Navigation." PROMET - Traffic&Transportation 22, no. 2 (2012): 95–103. http://dx.doi.org/10.7307/ptt.v22i2.168.

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By adjusting the maintenance approach towards the significant components of ship’s engines and equipment, through the use of operational data from the ship machinery’s daily reports, higher operability and navigation safety can be achieved. The proposed maintenance adjustment model consists of an operation data analysis and risk analysis. The risk analysis comprises the definition of the upper and the lower risk criterion, as well as the definition of a risk index. If the risk index is higher than the lower risk criterion, the component is significant, while it is not significant and has an ac

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Zhou, Binghai, and Zilong Liu. "Optimizing preventive maintenance: a deteriorating system with buffers." Industrial Management & Data Systems 116, no. 8 (2016): 1719–40. http://dx.doi.org/10.1108/imds-01-2016-0026.

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Purpose Making decisions on preventive maintenance (PM) policy and buffer sizing, as is often studied, may not result in overall optimization. The purpose of this paper is to propose a joint model that integrates PM and buffer sizing with consideration of quality loss for a degenerating system, which aims to minimize the average operation cost for a finite horizon. The opportunistic maintenance (OM) policy which could increase the output and decrease the cost of the system is also explored. Design/methodology/approach A joint PM and buffer size model considering quality loss is proposed. In th

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Qiu, Qingan, Lirong Cui, Jingyuan Shen, and Li Yang. "Optimal maintenance policy considering maintenance errors for systems operating under performance-based contracts." Computers & Industrial Engineering 112 (October 2017): 147–55. http://dx.doi.org/10.1016/j.cie.2017.08.025.

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PARK, J. H., S. C. LEE, J. W. HONG, and C. H. LIE. "AN OPTIMAL BLOCK PREVENTIVE MAINTENANCE POLICY FOR A MULTI-UNIT SYSTEM CONSIDERING IMPERFECT MAINTENANCE." Asia-Pacific Journal of Operational Research 26, no. 06 (2009): 831–47. http://dx.doi.org/10.1142/s021759590900250x.

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A block preventive maintenance (PM) policy for a multi-unit system composed of identical units is investigated in this paper. The block PM model of this paper considers periodic inspection and periodic imperfect maintenance. The imperfect maintenance effects are formulated using improvement factor and age reduction model. We define variables of maintenance policy as the inspection period and the PM period and obtain an optimal maintenance policy which minimizes the average total cost. A numerical example is presented, and some sensitivity analyses for model parameters are also investigated.

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Cai, Yiwei, John J. Hasenbein, Erhan Kutanoglu, and Melody Liao. "SINGLE-MACHINE MULTIPLE-RECIPE PREDICTIVE MAINTENANCE." Probability in the Engineering and Informational Sciences 27, no. 2 (2013): 209–35. http://dx.doi.org/10.1017/s0269964812000423.

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This paper studies a multiple-recipe predictive maintenance problem with M/G/1 queueing effects. The server degrades according to a discrete-time Markov chain and we assume that the controller knows both the machine status and the current number of jobs in the system. The controller's objective is to minimize total discounted costs or long-run average costs which include preventative and corrective maintenance costs, holdings costs, and possibly production costs. An optimal policy determines both when to perform maintenance and which type of job to process. Since the policy takes into account

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Nam, Seong-Nam, Thao Thi Nguyen, and Jeill Oh. "Performance Indicators Framework for Assessment of a Sanitary Sewer System Using the Analytic Hierarchy Process (AHP)." Sustainability 11, no. 10 (2019): 2746. http://dx.doi.org/10.3390/su11102746.

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In this study, performance indicators (PIs) for assessing services of the sanitary sewer system in South Korea were evaluated based on general opinions collected from experts in the field. The analytic hierarchy process (AHP) was then carried out. The evaluated set of PIs consisted of five major criteria: management, operation and maintenance, service, environment, and finance. Using the experts’ survey incorporated into the AHP tool, the prioritization of the five criteria was performed, consisting of a total of 14 indicators and 34 checklists on three levels. Of the criteria groups, operatio

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Kreimer, Joseph, and Abraham Mehrez. "An optimal operation policy for real-time n-server stand-by systems involving preventive maintenance." European Journal of Operational Research 69, no. 1 (1993): 50–54. http://dx.doi.org/10.1016/0377-2217(93)90089-6.

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Wari, Ezra, Weihang Zhu, and Gino Lim. "A Corrosion Maintenance Model Using Continuous State Partially Observable Markov Decision Process for Oil and Gas Pipelines." Algorithms 16, no. 7 (2023): 345. http://dx.doi.org/10.3390/a16070345.

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This paper proposes a continuous state partially observable Markov decision process (POMDP) model for the corrosion maintenance of oil and gas pipelines. The maintenance operations include complex and extensive activities to detect the corrosion type, determine its severity, predict the deterioration rate, and plan future inspection (monitoring) schemes and maintenance policy. A POMDP model is formulated as a decision-making support tool to effectively handle partially observed corrosion defect levels. It formulates states as the pipeline’s degradation level using a probability distribution. I

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Savsar, Mehmet. "Simulation Analysis of the Effects of Maintenance Policies on Manufacturing Line Productivity." Applied Mechanics and Materials 390 (August 2013): 646–52. http://dx.doi.org/10.4028/www.scientific.net/amm.390.646.

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A manufacturing line consists of a series of machines, which are subject to failures due to component deterioration and other random causes. While failures due to random causes are inevitable and need corrective maintenance (CM), failures due to component deterioration can be avoided by preventive maintenance (PM). Both types of maintenances can cause significant production losses, particularly if a proper PM policy is not practiced. Productivity calculations of multi-stage lines with storage units and maintenance operations can be quite complex. Furthermore, closed form solutions in equation

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