6533b7d5fe1ef96bd1263c69

RESEARCH PRODUCT

An exact algorithm for preventive maintenance planning of series-parallel systems

Giacomo Maria GalanteGianfranco Passannanti

subject

Reliability optimizationDowntimeEngineeringOperations researchPower stationbusiness.industrySeries and parallel circuitsPreventive maintenanceIndustrial and Manufacturing EngineeringReliability engineeringExact algorithmMaintenance optimization Selective maintenance Reliability Kettele’s algorithmSettore ING-IND/17 - Impianti Industriali MeccaniciRedundancy (engineering)Systems designSafety Risk Reliability and QualitybusinessSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione

description

Reliability is a meaningful parameter in assessing the performance of systems such as chemical processing facilities, power plant, aircrafts, ships, etc. In the literature, reliability optimization is widely considered during the system design phase and it is carried out by an opportune selection of both system components and redundancy. On the other hand, the problem of maintaining a required level of reliability by an opportune maintenance policy has been poorly examined. The paper tackles this problem for a system whose major components can be maintained only during a planned system downtime. An exact algorithm is proposed in order to single out the set of components that must be maintained to guarantee a required reliability level up to the next planned stop with the minimum cost. In order to verify the algorithm effectiveness, it has been applied to a complex real case regarding ship maintenance.

10.1016/j.ress.2009.02.009http://hdl.handle.net/10447/36252