Decision theory in maintenance strategy for a 2-unit redundant standby system

Almeida, Adiel Teixeira de; Souza, Fernando Menezes Campello de

doi:10.1109/24.257823

Cited by 41 publications

(16 citation statements)

References 11 publications

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“…MCDA approaches has been applied in several contexts, such as maintenance [9,10,11,12,13], risk evaluation [14,15,16,17], outsourcing and logistics [12,18] , project management [19,20,21], water resources management [22, 23 , 24] and many others.…”

Section: Review Of the Literaturementioning

confidence: 99%

A MCDA application for selecting which Brazilian fruits are best suited to future contracts

Almeida

Filho

2012

2012 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

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Given the importance of agribusiness for the Brazilian Economy and the requirements of formalization and the degree of professionalization achieved in this sector, this paper considers the use of future contracts to strengthen the marketing of Brazilian fruits. Some of the fruits considered have never been negotiated by using future contracts. However the objective of this paper is to point out which fruits from a set of Brazilian fruits are the most suitable ones when it comes to negotiations that use future contracts. In the case study, a MCDA method was considered that is compatible with this selecting-a-fruit problem. The PROMETHEE I method was used to analyze the following alternatives: banana, guava, orange, apple, papaya, mango, tangerine and grape by considering their performance set against the following criteria: perishability, price oscillation and market size. The main result indicated that the grape is the fruit that best fits into negotiations using the futures markets.

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Section: Review Of the Literaturementioning

confidence: 99%

A MCDA application for selecting which Brazilian fruits are best suited to future contracts

Almeida

Filho

2012

2012 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

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“…Esta função é obtida através do processo de modelagem de preferências junto ao decisor. A utilidade U(a i ,θ) é obtida com base na função utilidade U(C,R), aplicando a propriedade de linearidade da teoria da utilidade (Berger, 1985;Almeida & Souza, 1993), donde se tem que U(a i ,θ) é a o valor esperado da utilidade U(C,R):…”

Section: O Modelo De Decisãounclassified

Modelagem multicritério para seleção de intervalos de manutenção preventiva baseada na teoria da utilidade multiatributo

Almeida

2005

Pesqui. Oper.

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ResumoO problema de seleção de intervalos ou periodicidade para manutenção preventiva foi analisado através de um modelo de decisão multicritério. Este modelo de decisão apóia decisores na escolha da melhor combinação das conseqüências custo e confiabilidade, analisando um contexto de sistema de produção de serviços. O modelo de decisão é baseado na Teoria da Utilidade Multiatributo (MAUT). O artigo apresenta os principais aspectos teóricos e os elementos básicos utilizados para construção do modelo. Uma aplicação numérica é apresentada para ilustrar o uso do modelo de decisão.Palavras-chave: manutenção preventiva; apoio a decisão multicritério; teoria da utilidade multiatributo (MAUT). AbstractThe problem of interval selection for preventive maintenance has been analysed through a multicriteria decision model. This decision model supports decision makers in choosing the best combination of consequences cost and reliability, analysing a context of service production systems. The decision model is based on the multiattribute utility theory (MAUT). The paper presents the main theoretical and practical aspects related to model building. A numerical application is presented in order to illustrate the use of the decision model.

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“…Two redundant repairable systems have been studied extensively in the past (Birolini [1], Yearout et al [2], and detailed bibliography is found in Sztrik [3]). A number of authors have investigated two-unit redundant systems under different assumptions (see Goel and Shrivastava [4], Shi and Li [5], de Almeida and Campello de Souza [6], Gururajan and Srinivasan [7], Shi and Liu [8], Rajamanickam and Chandrasekar [9], Billinton and Pan [10], Sridharan and Mohanavadivu [11], Yadavalli et al [12], and Seo et al [13]). However, in many of these models the service station is reliable and available at all times.…”

Section: Introductionmentioning

confidence: 99%

On a repairable system with an unreliable service station—Bayesian approach

Lee

Hsu

et al. 2008

Computers & Mathematics with Applications

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a b s t r a c tSystem characteristics of a two-unit repairable system are studied from a Bayesian viewpoint with different types of priors assumed for unknown parameters, in which the service station is unreliable. Times to failure and times to repair of the operating units are assumed to follow exponential distributions. In addition, failure times and repair times of the service station also follow exponential distributions. When times to failure and times to repair of operating units, failure times and repair times of the service station are with uncertain parameters, a Bayesian approach is adopted to evaluate system characteristics. Monte Carlo simulation is used to derive the posterior distribution for the mean time to system failure and the steady-state availability. Some numerical experiments are performed to illustrate the results derived in this paper.

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Decision theory in maintenance strategy for a 2-unit redundant standby system

Cited by 41 publications

References 11 publications

A MCDA application for selecting which Brazilian fruits are best suited to future contracts

A MCDA application for selecting which Brazilian fruits are best suited to future contracts

Modelagem multicritério para seleção de intervalos de manutenção preventiva baseada na teoria da utilidade multiatributo

On a repairable system with an unreliable service station—Bayesian approach

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