The effectiveness of a maintenance policy for a production system is generally measured by its availability. Nevertheless, for some production systems, the failure is a dangerous event for people or in any case too much expensive; therefore the failure probability must be maintained less than an accepted low value by a proper preventive maintenance policy. The system considered hereafter is schematized by a series of components some of them constituted by parallel-series sub-systems. The problem is to individuate the set of elements on which to operate the maintenance actions, providing the system functioning with the required reliability until the next planned maintenance instant by the minimum maintenance cost. Moreover, the optimal size of the maintenance crews is individuated. The problem is formulated as a mathematical programming model that becomes very hard to solve when the number of parallel-series components increases. In order to solve large practical problem, a genetic approach is proposed and tested on a case study comparing the results with those obtained solving the mathematical model by the commercial software.

CERTA, A., GALANTE, G.M., LUPO, T., PASSANNANTI, G. (2008). Optimal Maintenance For a System with Required Reliability. In Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing (pp.357-364).

Optimal Maintenance For a System with Required Reliability

CERTA, Antonella;GALANTE, Giacomo Maria;LUPO, Toni;PASSANNANTI, Gianfranco
2008-01-01

Abstract

The effectiveness of a maintenance policy for a production system is generally measured by its availability. Nevertheless, for some production systems, the failure is a dangerous event for people or in any case too much expensive; therefore the failure probability must be maintained less than an accepted low value by a proper preventive maintenance policy. The system considered hereafter is schematized by a series of components some of them constituted by parallel-series sub-systems. The problem is to individuate the set of elements on which to operate the maintenance actions, providing the system functioning with the required reliability until the next planned maintenance instant by the minimum maintenance cost. Moreover, the optimal size of the maintenance crews is individuated. The problem is formulated as a mathematical programming model that becomes very hard to solve when the number of parallel-series components increases. In order to solve large practical problem, a genetic approach is proposed and tested on a case study comparing the results with those obtained solving the mathematical model by the commercial software.
18th International Conference on Flexible Automation and Intelligent Manufacturing
Kkovde, Svezia
30 giugno - 2 luglio
CERTA, A., GALANTE, G.M., LUPO, T., PASSANNANTI, G. (2008). Optimal Maintenance For a System with Required Reliability. In Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing (pp.357-364).
Proceedings (atti dei congressi)
CERTA, A; GALANTE, GM; LUPO, T; PASSANNANTI, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/7328
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact