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Showing 1 to 16 of 16 for “"Corrective maintenance"”.
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Optimising corrective maintenance backlog using quality tools and quality principles at a selected power generation plant in South Africa optimising corrective maintenance backlog using quality tools and quality principles at a selected power generation plant in South Africa
Submitted in fulfillment of the requirements for the Master of Philosophy in Quality Management, Durban University of Technology Technology, Durban, South Africa, 2022.
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ENGINE MAINTENANCE MANHOURS: AN ANALYSIS OF THE ACCURACY OF CORRECTIVE MAINTENANCE STANDARD RATIOS USED IN DETERMINING MANPOWER REQUIREMENTS
Previous research found the Navy’s preventative maintenance to corrective maintenance (PM:CM) ratio standard underestimated the amount of CM performed on guided missile destroyers (DDG). This study expands on these findings by comparing the actual PM:CM ratio on the 501-K34 engine onboard Flight I …
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Mechanistic-Empirical Pavement Design Guide (MEPDG) Method Implemented to Estimate Damage in Flexible and Rigid Pavements
… influence on the determination of the number of corrective maintenance cycles to be performed during the design life of pavements. It was found that for flexible pavement, change in the average monthly temperature by as little as results in large differences in the number of corrective …
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Heuristic rules to achieve pavement performance profile objectives
… highway agencies adopt either a preventive or corrective maintenance strategy for pavement maintenance programming. Preventive maintenance is carried out when the segment distress value is below their respective warning level for defects whereas corrective maintenance is done when the segment …
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On The Maintenance Modeling and Optimization of Repairable Systems: Two Different Scenarios
… we study two different scenarios on the maintenance modeling and optimization of repairable systems. First, we study the long-run availability of a traditional repairable system that is subjected to imperfect corrective maintenance. We use Kijima's second virtual age model to describe the …
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A Constructivist Grounded Theory Study of Airfield Lighting Maintenance Management Strategy
… information, managers can adjust operations and maintenance to minimize costs without sacrificing service quality. However, program implementation is costly and time-consuming. In addition to management and information technology changes, the individual maintenance shops must also develop and …
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A Bivariate Renewal Process and Its Applications in Maintenance Policies
… pursue a bivariate approach in reliability and maintenance modeling. This research presents a framework for bivariate modeling of a single-unit system. Five key efforts are identified and organized as: (i) bivariate failure modeling, (ii) bivariate renewal modeling, (iii) bivariate corrective …
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The impact of software design structure on product maintenance costs and measurement of economic benefits of product redesign
… perform a code modification in the context of a corrective maintenance task. First, this paper reviews the current state of the art in engineering economics of the maintenance phase of software lifecycle. Secondly, a measure of software product complexity suitable to assess maintainability of a …
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Comparative analysis of legislation governing maintenance check flight of aircraft
… of agreed-upon international standards. The Maintenance Check Flight (MCF) is one such activity. An MCF supports the aircraft maintenance process by verifying aircraft system operability after the completion of a maintenance task, or as a troubleshooting step before corrective maintenance …
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Propuesta de mejora para la optimización de almacenes de la empresa del sector automotriz Tauro Servs S. R. L.
… 20 years in the market providing preventive and corrective maintenance services for light, heavy and linear vehicles. The evaluated stores to study contain various products that are used in each service or sold to customers, these products are from different brands such as Toyota, Nissan, …
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Quantifying the relationship between wind turbine component failure rates and wind speed
… day of each recorded failure that resulted in corrective maintenance. A methodology is proposed in this thesis to define the relationship between wind turbine component failure rates and wind speed using Bayes Theorem. With these relationships known and wind speed dependent failure rates …
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Change Analysis Across Version Histories of Systems Models
… of changes may significantly affect model maintenance. Existing work has already investigated processes and techniques to support, analyze and mitigate the impact of changes to models. However, most of these works often focus on the analysis of changes between two sets of models and do not …
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Maintenance scheduling for modular systems-models and algorithms
Maintenance scheduling is an integral part of many complex systems. For instance, without effective maintenance scheduling, the combined effects of preventative and corrective maintenance can have severe impacts on the availability of those systems. Based on current Air Force trends including …
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Availability Analysis for the Quasi-Renewal Process with an Age-Dependent Preventive Maintenance Policy
… can also be used to model the increasing time of maintenance actions due to the increasing difficulty of maintaining an aging system by setting the parameter to a value larger than 1. We construct a model where the operating times follow a quasi-renewal process and the corrective/preventive …
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Availability Analysis for the Quasi-Renewal Process
The behavior of repairable equipment is often modeled under assumptions such as perfect repair, minimal repair, or negligible repair. However the majority of equipment behavior does not fall into any of these categories. Rather, repair actions do take time and the condition of equipment following …
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Propuesta para la implementación de la metodología Lean en la empresa PHES Corp., para el proceso de mantenimiento correctivo del sistema de videovigilancia en la ciudad de Bogotá
El presente documento tiene como objetivo el desarrollo de una propuesta para implementar un sistema de mejora bajo la metodología Lean en la empresa PHES Corp. Actualmente, PHES Corp. presta los servicios de mantenimiento correctivo a un promedio de 745 puntos de videovigilancia mensuales, de los …