Selective maintenance of multi-state series systems considering maintenance quality uncertainty and failure effects

Abstract

In order to improve the lifetime and reliability of equipment operation stage, it is necessary to carry out maintenance for components. The typical selective maintenance model does not consider the maintenance quality uncertainty and the failure effects, which may make the decision-maker overestimates the reliability of completing the next task after system maintenance, resulting in incorrect maintenance decision and prone to serious consequences of failure. In this paper, the potential discrepancy between the target maintenance quality and the actual maintenance quality of the decision maker is considered. At the same time, a multi-state FMECA is proposed to measure the failure effects under different states. Finally, the selective maintenance model of the multi-state series systems is established and solved by the genetic algorithm. The results show that considering the effect of component failure and the uncertainty of maintenance quality has an influence on maintenance decision. The maintenance decision made in this way is more consistent with the engineering practice.

Periodic maintenance optimization considering the difference of preventive maintenance effect based on generalized Polya process

“…(2) PM models that consider dependence of failures require further study. (3) This paper only considers the PM modeling method of single system, and PM modeling method of multi system need to be further studied.…”

“…Proper maintenance can improve the reliability of repairable systems and extend the service life of systems, reduce the number of accidents, improve the safety and reliability of the system, and greatly reduce the loss in the production process. 1–3…”

“…Proper maintenance can improve the reliability of repairable systems and extend the service life of systems, reduce the number of accidents, improve the safety and reliability of the system, and greatly reduce the loss in the production process. [1][2][3] At present, there are three main maintenance strategies 4,5 : CM, PM, and CBM. CM performs on the equipment after its failure.…”

Optimization of equal-cycle maintenance strategy considering imperfect preventive maintenance

“…To improve the reliability of the repairable equipment, extend the service life of the equipment, reduce the number of accidents, and reduce the loss in the production process, preventive maintenance is essential and plays an extremely important role in the use of repairable equipment. 1,2 At present, maintenance strategy mainly can be divided into two types 3 : preventive maintenance strategy and corrective maintenance strategy. Corrective maintenance is to repair the equipment after failure [4][5][6] ; preventive maintenance generally refers to taking corresponding maintenance actions to delay the occurrence of the failure before the equipment fails.…”

“…To improve the reliability of the repairable equipment, extend the service life of the equipment, reduce the number of accidents, and reduce the loss in the production process, preventive maintenance is essential and plays an extremely important role in the use of repairable equipment. 1,2…”