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Fault tree analysis (FTA) is a tool originally developed in 1962 by Bell Labs for use in studying failure modes in the launch control system of the Minuteman missile project. The tool now finds wide use in numerous applications from accident investigation to design prototyping and is also finding use for protection and control related applications. This paper provides an elementary background to the...
This work shows an approach to solve a problem of estimation of hazard rate of equipment under different maintenance policies. This approach is based on a model of equipment deterioration over time. The main incentive when building the model was to make it feasible to directly feed into the model real failure data obtained from historical maintenance records. Using this approach it is possible to...
This paper describes how asset probabilities of failure can be derived from life expectancy curves that are based on asset age, failure data and specific asset knowledge. It is shown how asset failure probabilities can then be adjusted for individual assets through measurement of the actual asset condition by the application of Health Indices. This allows utilities to focus their attention on the...
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