A Suitable Inspection Policy Definition for System with Two Modes of Degradation11This work has been funded in part by Champagne-Ardenne Regional Council and the European Social Fund

Autor: Laurence Dieulle, Antoine Grall, Bassem Saassouh
Rok vydání: 2007
Předmět:
Popis: In this paper, a condition-based maintenance policy is proposed for a gradually deteriorating system with several modes of deterioration. The gamma process is used to describe the system degradation. The system deteriorates from a good as new state to the break down state (when the aging variable reaches a failure level). The level of deterioration can only be known by inspections and the time of change of degradation mode is not detected on line. The aim of the policy is to propose a suitable inspection schedule in every mode of deterioration as well as a related maintenance decision rule. A preventive maintenance is planned when the predicted deterioration level at the next inspection overpasses the failure level with a probability greater than a limit value.
Databáze: OpenAIRE