Results 251 to 260 of about 1,990,178 (318)
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Fuzzified imperfect repair redundant machine repair problems
International Journal of System Assurance Engineering and Management, 2023Mahendra Devanda +2 more
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An imperfect repair strategy for two-dimensional warranty
Journal of the Operational Research Society, 2012The objective of this study is to develop a warranty servicing strategy, based on imperfect and minimal repairs, that minimises the total warranty servicing cost. For pre-specified degrees of repair, the expected warranty servicing cost is minimised by optimally partitioning a two-dimensional rectangular warranty region into n disjoint subregions.
Stefanka Chukova
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Imperfect repair model for complex repairable system - a literature survey with discussion
2015 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM), 2015Complex repairable system models address the dynamics of the failure and repair process. These models arecritical to the maintenance optimization. This paper firstly discusses different repair effectiveness. Imperfect repair is considered as the most frequently occurred repair effectiveness.
Fuqing Yuan, Jinmei Lu
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A two-phase preventive maintenance policy considering imperfect repair and postponed replacement
European Journal of Operational Research, 2019This paper investigates a novel two-phase preventive maintenance policy for a single-component system with an objective of maximizing the revenue generated by the performance-based contracting (PBC). The system undergoes a defective state before failure,
Zhisheng Ye, Rui Peng, Chi-Guhn Lee
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Imperfect repair models: Sequential goodness‐of‐fit testing based on predictive performances
Quality and Reliability Engineering International, 2022Imperfect repair (IR) modelling has attracted a lot of attention during the last decades. To assess and predict repairable systems' reliability, analysts have to choose among a plethora of models: renewal processes, non‐homogeneous Poisson processes ...
Mhamed-Ali El-Aroui, O. Gaudoin
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Proceedings of the Institution of Mechanical Engineers. Part O, Journal of risk and reliability, 2021
This paper studies the availability and optimal maintenance policies for systems subject to competing failure modes under continuous and periodic inspections. The repair time distribution and maintenance cost are both dependent on the failure modes.
Qingan Qiu +3 more
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This paper studies the availability and optimal maintenance policies for systems subject to competing failure modes under continuous and periodic inspections. The repair time distribution and maintenance cost are both dependent on the failure modes.
Qingan Qiu +3 more
semanticscholar +1 more source
Operations Research, 1986
In this paper, we consider models of systems whose components have dependent lifelengths and are imperfectly repaired upon failure until they are scrapped. First, assuming that no more than one component can fail at a time, we study two models that describe imperfect repairs, and derive the resulting density and other probabilistic quantities of ...
Moshe Shaked, J. George Shanthikumar
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In this paper, we consider models of systems whose components have dependent lifelengths and are imperfectly repaired upon failure until they are scrapped. First, assuming that no more than one component can fail at a time, we study two models that describe imperfect repairs, and derive the resulting density and other probabilistic quantities of ...
Moshe Shaked, J. George Shanthikumar
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Journal of Applied Probability, 1983
A device is repaired at failure. With probability p, it is returned to the ‘good-as-new' state (perfect repair), with probability 1 – p, it is returned to the functioning state, but it is only as good as a device of age equal to its age at failure (imperfect repair). Repair takes negligible time.
Brown, Mark, Proschan, Frank
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A device is repaired at failure. With probability p, it is returned to the ‘good-as-new' state (perfect repair), with probability 1 – p, it is returned to the functioning state, but it is only as good as a device of age equal to its age at failure (imperfect repair). Repair takes negligible time.
Brown, Mark, Proschan, Frank
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A 2-unit System with "Imperfect" Repair
Mathematische Operationsforschung und Statistik. Series Optimization, 1980In the study of repairable systems, it is usually assumed that a unit is ‘new’ after repair. While this assumption simplifies the analysis of such systems, there are many instances, in which this assumption is not true. In this paper, we study a 2-unit cold standby redundant system, In which the number of repairs that can be done for each unit is h and
Subramanian, R., Natarajan, R.
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Journal of Applied Probability, 1992
We consider models of systems of components with dependent life-lengths having certain multivariate distributions. Upon failure, components are repaired. Two types of repair are possible. After perfect repair, a unit has the same life distribution as a new item.
Sheu, Shey-Huei, Griffith, William S.
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We consider models of systems of components with dependent life-lengths having certain multivariate distributions. Upon failure, components are repaired. Two types of repair are possible. After perfect repair, a unit has the same life distribution as a new item.
Sheu, Shey-Huei, Griffith, William S.
openaire +1 more source