Reliability analysis of systems based on survival signature

Feng, Geng and Patelli, Edoardo and Beer, Michael; (2015) Reliability analysis of systems based on survival signature. In: 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2015. 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2015 . University of British Columbia, CAN. ISBN 9780888652454

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    Abstract

    It is essential to conduct a reliability analysis of systems with multiple types of components, and deal with the uncertainties within the components failure time distribution. Moreover, finding the most "critical" component in the system at a certain time facilitates a risk management. In this paper, we introduce the survival signature into a real world hydro power plant system and solve the epistemic uncertainties in the component's failure time distribution. By implementing a relative importance index for each component, we can derive the reliability trend of the system depending on a component failure. The results show that the survival signature used on reliability analysis can help us deal with real world systems with more than one component type as well as to get bounds on system responses concerning epistemic uncertainties.