Prognostics of Health Status of Multi-component Systems With Degradation Interactions.
Résumé
Many models and methodologies in order to predict
the remaining useful life (RUL) of a critical component are
investigated nowadays. However, estimating remaining useful life
of multi-component systems is still an under explored area,
especially when there are interdependencies among the components
of these systems. Practically, prognostics can be quite
complicated when there is absence of prior knowledge about
these interactions. To optimize the availability and reliability
of the system, it is required to embed a dependency model
that implements component strength and the component’s health
status. In this paper, a novel approach is proposed in order
to emphasize the importance of interactions between complex
system’s components in the RUL’s calculating. The effectiveness
of the approach is judged by applying it to numerical studies in
order to estimate system’s remaining useful life.
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