A Maintenance Model for Components Exposed to Several Failure Mechanisms and Imperfect Repair
نویسندگان
چکیده
We investigate the mathematical modelling of maintenance and repair of components that can fail due to a variety of failure mechanisms. Our motivation is to build a model, which can be used to unveil aspects of the quality of the maintenance performed. The model we propose is motivated by imperfect repair models, but extended to model preventive maintenance as one of several “competing risks”. This helps us to avoid problems of identifiability previously reported in connection with imperfect repair models. Parameter estimation in the model is based on maximum likelihood calculations. The model is tested using real data from the OREDA database, and the results are compared to results from standard repair models.
منابع مشابه
Two echelon-two indenture extended warranty distribution network under imperfect preventive maintenance policies
Nowadays, offering extended warranty is considered as a lucrative source of income from the perspective of the after-sale service providers. Meanwhile, the main concern is presence or absence of base warranty and strategies adopted by the manufacturer during this period. Moreover, extended warranty structure must be responsive and customer oriented, which not only control the services cost but ...
متن کاملFuzzy Reliability Evaluation of a Repairable System with Imperfect Coverage, Reboot and Common-cause Shock Failure
In the present investigation, we deal with the reliability characteristics of a repairable system consisting of two independent operating units, by incorporating the coverage factor. The probability of the successful detection, location and recovery from a failure is known as the coverage probability. The reboot delay and common cause shock failure are also considered. The times to failure of t...
متن کاملBayesian networks with applications in reliability analysis
A maintenance model for components exposed to several failure modes and imperfect repair. Tech. rep., Submitted as invited paper. Fusion of domain knowledge with data for structural learning in object oriented domains. JMLR – Forthcoming.
متن کاملMaintenance Cost Analysis for Replacement Model with Perfect Minimal Repair
With the evolution of technology, the maintenance of sophisticated systems is of concern for system engineers and system designers. The maintenance cost of the system depends in general on the replacement and repair policies. The system replacement may be in a strictly periodic fashion or on a random basis depending upon the maintenance policy. At failure, the repair of the system may be perfor...
متن کاملCondition Based Maintenance for Two-Component Systems with Reliability and Cost Considerations
This paper studies a maintenance policy for a system composed of two components, which are subject to continuous deterioration and consequently stochastic failure. The failure of each component results in the failure of the system. The components are inspected periodically and their deterioration degrees are monitored. The components can be maintained using different maintenance actions (repair...
متن کامل