Availability Model of a PHM-Equipped Component
نویسندگان
چکیده
منابع مشابه
Reliability model of a component equipped with PHM capabilities
We propose an analytic, time-variant model that conservatively evaluates the increase in reliability achievable when a component is equipped with a Prognostics and Health Management system of known performance metrics. The reliability model builds on metrics of literature and is applicable to di erent industrial contexts. A simulated case study concerning crack propagation in a mechanical compo...
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Prognostics and Health Management (PHM) methods are incorporated into systems for the purpose of avoiding unanticipated failures that can impact system safety, result in additional life cycle cost, and/or adversely affect the availability of the system. Availability is the probability that a system will be able to function when called upon to do so. Availability depends on the system’s reliabil...
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In the past decades, machine learning techniques or algorithms, particularly, classifiers have been widely applied to various real-world applications such as PHM. In developing high-performance classifiers, or machine learning-based models, i.e. predictive model for PHM, the predictive model evaluation remains a challenge. Generic methods such as accuracy may not fully meet the needs of models ...
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Stochastic model checking for predicting component failures and service availability
When a component fails in a critical communications service, how urgent is a repair? If we repair within 1 hour, 2 hours, or n hours, how does this affect the likelihood of service failure? Can a formal model support assessing the impact, prioritisation, and scheduling of repairs in the event of component failures, and forecasting of maintenance costs? These are some of the questions posed to u...
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ژورنال
عنوان ژورنال: IEEE Transactions on Reliability
سال: 2017
ISSN: 0018-9529,1558-1721
DOI: 10.1109/tr.2017.2669400