Results 241 to 250 of about 1,597,070 (284)
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Reliability Engineering and System Safety, 2018
Abstract We consider a manufacturing system subject to an increasing random failure rate and producing conforming and non-conforming items. Two types of non-defective products are considered: high quality items noted first-rate products and substandard quality items noted second-rate products.
Amal Gouiaa-Mtibaa +3 more
exaly +4 more sources
Abstract We consider a manufacturing system subject to an increasing random failure rate and producing conforming and non-conforming items. Two types of non-defective products are considered: high quality items noted first-rate products and substandard quality items noted second-rate products.
Amal Gouiaa-Mtibaa +3 more
exaly +4 more sources
Availability of aircraft subject to imperfect preventive maintenance [PDF]
This thesis studies the impact that imperfect preventive maintenance has on the availability of aircraft and, as a result, the decrease in operational effectiveness. We further consider the practicality of using an imperfect preventive maintenance model for determining preventive maintenance scheduling.
Bond, Michael J.
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On an imperfect preventive maintenance model
International Journal of Quality & Reliability Management, 2000Presents two sequential preventive maintenance (PM) models. The first model can be viewed as an extension of Nakagawa’s model where the age reduction of the system is assumed to depend on the level of PM activities. Linear and nonlinear relationships between age reduction and PM level have been considered.
M. Ben‐Daya, A.S. Alghamdi
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Imperfect repair models with preventive maintenance
Journal of Applied Probability, 2003Brown and Proschan (1983) introduced the imperfect repair model, in which an item, upon failure, is replaced with a new one with probability α, and is minimally repaired with probability 1 − α. In this paper we equip the imperfect repair model with preventive maintenance, and we obtain stochastic maintenance comparisons for the numbers of failures ...
Li, Haijun, Shaked, Moshe
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Modelling and analysis of maintenance contract with imperfect preventive maintenance
2015 International Conference on Technology, Informatics, Management, Engineering & Environment (TIME-E), 2015In this paper, we study two dimensional maintenance contracts for a dump truck operated in a mining industry. To keep the truck in a good operational condition, an imperfect preventive maintenance (PM) policy is applied. When the truck fails then corrective maintenance (CM) is done.
H. Husniah +3 more
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Scheduling Imperfect Preventive and Overhaul Maintenance
International Journal of Quality & Reliability Management, 1991Although each maintenance task performed on an item of equipment may enhance its reliability, neither preventive nor overhaul maintenance can return the equipment to good‐as‐new condition. Applying the concept of maintenance improvement factors to both types of maintenance, mathematical models are developed that are used to generate preventive and ...
Festus O. Olorunniwo, Ariwodo Izuchukwu
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Optimal Maintenance Time Under Imperfect Preventive Maintenance
Vulnerability, Uncertainty, and Risk, 2014The preventive maintenance (PM) is scheduled periodically to restore the system condition. However, PM activities cannot generally restore the system to as good as new condition but in an intermediate situation, which is called imperfect PM. The PM interval optimization is useful for improving system reliability.
M. A. Coque, Jr., G. F. M. Souza
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To determine the optimal maintenance number for a system with random maintenance quality in infinite time horizon, a sequential imperfect preventive maintenance model considering reliability limit is proposed.
Jiuzhong Yang
exaly +2 more sources
IMPERFECT PRODUCTION SYSTEMS WITH IMPERFECT PREVENTIVE MAINTENANCE, INFLATION, AND TIME VALUE OF MONEY [PDF]
A model that integrates the issues of production, quality, maintenance, inspection, inflation, and time value of money is proposed in this paper. It is assumed that the production system starts in the in-control state producing items of high or perfect quality.
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Optimization of equal-cycle maintenance strategy considering imperfect preventive maintenance
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2021Preventive maintenance is an important means to extend equipment life and improve equipment reliability. Traditional preventive maintenance decision-making is often based on components or the entire system, the granularity is too large and the decision-making is not accurate enough.
Xinlong Li, Yan Ran, Genbao Zhang
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