A Control-Limit Policy And Software For Condition-Based Maintenance Optimization

• Published in: INFOR. Information systems and operational research Vol. 39; no. 1; pp. 32 - 50
• Main Authors: Banjevic, D., Jardine, A.K.S., Makis, V., Ennis, M.
• Format: Journal Article
• Language: English
• Published: Ottawa Taylor & Francis 01.02.2001; Canadian Operational Research Society
• Subjects: Age; Asset management; condition-based maintenance; Consortia; cost minimization; Data collection; Decision making; decision software; Decision support software; Energy consumption; Engineers; Industrial engineering; Industrial equipment; logiciel décisionnel; Markov analysis; Markov process; Mathematical functions; Mathematical optimization; Maximum likelihood method; minimisation des coûts; modelisation des risques proportionnelles (PHM); Optimization; Preventive maintenance; processus Marcov; programme de l'entretien par surveillance de la condition des machines; proportional-hazards model; Repair & maintenance; Software; Statistical analysis; Stochastic models; Studies; Supply chain management; Surveillance; Variables
• ISSN: 0315-5986; 1916-0615
• DOI: 10.1080/03155986.2001.11732424

The focus of the paper is the optimization of condition-based maintenance decisions within the contexts of physical asset management. In particular, the analysis of a preventive replacement policy of the control-limit type for a deteriorating system subject to inspections at discrete points of time is presented. Cox's PHM with a Weibull baseline hazard function and time dependent stochastic covariates is used to describe the failure rate of the system. The methods of estimating model parameters and the calculation of the optimal policy are given. The structure of the decision-making software EXAKT is presented. Experience with collecting, preprocessing and using real oil and vibration data is reported.