Optimal burn-in for maximizing reliability of repairable non-series systems

Kim, Kyungmee O.; Kuo, Way

doi:10.1016/j.ejor.2007.10.037

Cited by 31 publications

(13 citation statements)

References 27 publications

(31 reference statements)

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“…Cha et al [9] determine an upper bound for optimal burn-in time of a warranted product with two types of minor and catastrophic failures. Kim and Kuo [10] determine the optimal burn-in time for repairable non-series systems to maximize reliability. Kwon et al [11] determine the optimal burn-in time and replacement policy for a product with bathtub shaped failure rate.…”

Section: Introductionmentioning

confidence: 99%

Optimising burn-in procedure and warranty policy in lifecycle costing

Shafiee

Zuo

2011

2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering

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In this paper, an optimization model is developed to investigate the optimal burn-in time and warranty length of a product from a manufacturer's perspective. It is assumed that the cost of a minimal repair to the component which fails at age t is a continuous non-decreasing function of t. Out-of-warranty, if the product fails before its useful life limit, it causes customer dissatisfaction and incurs a penalty cost for the manufacturer. The properties of the optimal burn-in time and optimal warranty policy are also given. We provide a numerical example to illustrate our results. A sensitivity analysis is conducted to evaluate the effect of model parameters on the optimal solution.

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Section: Introductionmentioning

confidence: 99%

Optimising burn-in procedure and warranty policy in lifecycle costing

Shafiee

Zuo

2011

2011 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering

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“…A previsão de vida útil de ativos é crucial para redução de custos e aumento de produtividade nas companhias, já que sua acurácia conduz a melhores planos de manutenção, previsão de sobressalentes, eficiência operacional e auxilia na tomada de decisão (JARDINE et al, 2006;ZHANG, 2008;KUO, 2009;L. WANG et al, 2009;CAMCI;CHINNAM, 2010;SI et al, 2011).…”

Section: Introductionunclassified

Modelo para vida útil restante de ativos em terminais aeroportuários

Beuren

Ribeiro

2017

Revista PO: R. Eletr. de Eng. de Produção e Correlatas

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Resumo: Estudos destacam a importância da previsão da vida útil de ativos para redução de custos e aumento de produtividade nas companhias, em especial, a vida útil restante. No entanto, esta previsão é muito sensível ao método utilizado e à quantidade de dados disponível para a análise. Apesar de existirem diversos modelos para vida útil restante de ativos, nenhum deles foi desenvolvido considerando especificamente o ambiente aeroportuário, que apresenta problemas na gestão de seus ativos. O objetivo principal deste trabalho é propor um modelo para estimativa de vida útil restante de ativos em aeroportos, além da sua aplicação em um aeroporto brasileiro na forma de estudo de caso. O trabalho concluiu que modelo conseguiu identificar ativos com um amplo intervalo de vida útil restante, apoiando-se em informações subjetivas e poucos dados históricos. Como principal contribuição, cita-se o estudo das variáveis presentes em ambientes aeroportuários, o que permitiu a proposição de um modelo adequado para lidar com as especificidades do setor. Palavras-chave:Vida útil de ativos. Vida útil restante. Aeroportos. Abstract:Studies highlight the importance of accurate asset life estimation in order to reduce costs and increase productivity in companies, in particular the Remaining Useful Life (RUL). However, this estimation is very sensitive to the method used and the amount of data available for analysis. Although there are several models for remaining useful life of assets, none of those were developed specifically to airports, which present problems in asset management. The main objective of this work is to develop a model to estimate the remaining life of assets in airports, in addition to its application in a Brazilian airport. It can be concluded that model was able to identify assets with a wide range of remaining useful life, relying on subjective information and few historical data. In addition, the study of the airports variables appears as a main contribution, which allows the development of models more appropriated to the specificities of the sector.

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“…Kim and Kuo (2009)), various cost structures have been proposed, and the corresponding problem of finding the optimal burn-in time has been considered (see, e.g. The best (usually in terms of costs involved) time to stop the burn-in process for a given criterion is called the optimal burn-in time.…”

Section: Introductionmentioning

confidence: 99%

Burn-in Procedure Based on a Dependent Covariate Process

Hwan

Pulcini

2015

Adv. Appl. Probab.

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Burn-in is a method of 'elimination' of initial failures (infant mortality). In the conventional burn-in procedures, to burn-in a component or a system means to subject it to a fixed time period of simulated use prior to actual operation. Then those which fail during the burn-in procedure are scrapped and only those which survived the burn-in procedure are considered to be of satisfactory quality. Thus, in this case, the only information used for the elimination procedure is the lifetime of the corresponding item. In this paper we consider a new burn-in procedure which additionally employs a dependent covariate process in the elimination procedure. Through the comparison with the conventional burn-in procedure, we show that the new burn-in procedure is preferable under commonly satisfied conditions. The problem of determining the optimal burn-in parameters is also considered and the properties of the optimal parameters are derived. A numerical example is provided to illustrate the theoretical results obtained in this paper.

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Optimal burn-in for maximizing reliability of repairable non-series systems

Cited by 31 publications

References 27 publications

Optimising burn-in procedure and warranty policy in lifecycle costing

Optimising burn-in procedure and warranty policy in lifecycle costing

Modelo para vida útil restante de ativos em terminais aeroportuários

Burn-in Procedure Based on a Dependent Covariate Process

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