um modelo markoviano de decisÃo para a otimizaÇÃo de um sistema de manutenÇÃo com tempos de reparo coxianos e fases nÃo observÁveis
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ID: 224579
2001
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Abstract
Neste artigo analisa-se um sistema de manutenção de máquinas com dois servidores diferentes, tempos até a quebra das máquinas exponencialmente distribuídos e tempos de reparo seguindo uma distribuição do tipo fase com configuração de Cox. Consideram-se dois modelos que se diferenciam pela possibilidade ou não de se observar as fases das distribuições do tipo fase: um modelo com informação completa e um modelo com informação parcial. No primeiro caso, modela-se o sistema por um processo markoviano de decisão a tempo contínuo e no segundo por um processo markoviano de decisão com informação parcial, conforme este é definido em Hordijk & Loeve (1994). Resultados numéricos são apresentados
In this paper we analyse a manufacturing system with two different servers. The times to failure follow an exponential distribution and the machines repair times follow a phase type distribution with Cox configuration. We consider two models: a full information model and a partial information model, which differ themselves by the possibility of observing or not the phases of the phase type distribution. The first one is modelled by a continuous time Markov decision process, and the second one by a decision Markov processes with partial information, as defined in Hordijk & Loeve (1994). Numerical results are presented
In this paper we analyse a manufacturing system with two different servers. The times to failure follow an exponential distribution and the machines repair times follow a phase type distribution with Cox configuration. We consider two models: a full information model and a partial information model, which differ themselves by the possibility of observing or not the phases of the phase type distribution. The first one is modelled by a continuous time Markov decision process, and the second one by a decision Markov processes with partial information, as defined in Hordijk & Loeve (1994). Numerical results are presented
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| Authors | ;Rita de Cássia Meneses Rodrigues;Solon Venâncio de Carvalho |
| Journal | t\"urk ya\csam bilimleri dergisi |
| Year | 2001 |
| DOI |
10.1590/S0101-74382001000200003
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| URL | |
| Keywords | Keywords not found |
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