Dependability and performance stochastic modelling of a two-unit repairable production system with preventive maintenance

作者：Manatos Athanassios; Koutras Vasilis P; Platis Agapios N^*

来源：International Journal of Production Research, 2016, 54(21): 6395-6415.

DOI：10.1080/00207543.2016.1201603

• preventive maintenance
• redundancy
• production systems
• stochastic model
• semi-Markov process
• dependability
• performance

In this paper, a two-unit multistate repairable production system is considered in which preventive maintenance (PM) is implemented in order to improve its dependability and performance. A general model is provided for the production system using a semi-Markov process, for examining system's limiting behaviour. Apart from combining redundancy with PM, we introduce scenarios like imperfect and failed maintenance which are usually met in real life production systems. For the proposed model, we calculate the availability, the mean time to failure and the total operational cost and we formulate optimisation problems settled with respect to the system's inspection times. The main aim of our work is to determine the optimal inspection times and consequently the optimal PM policies to be adopted in order to optimise system's dependability and performance.

• 出版日期2016