SHyFTA, a Stochastic Hybrid Fault Tree Automaton for the modelling and simulation of dynamic reliability problems

Ferdinando Chiacchio, Diego D'Urso, Lucio Compagno, Marzio Pennisi, Francesco Pappalardo, Gabriele Manno

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Reliability assessment of industrial processes is traditionally performed with RAMS techniques. Such techniques are static in nature because they are unable to consider the multi-state operational and failure nature of systems and the dynamic variations of the environment in which they operate. Stochastic Hybrid Automaton appears to overcome this weakness coupling a deterministic and a stochastic process and integrating the features of a dynamic system with the concepts of dynamic reliability. At the state of the art, no attempts to enhance a formal RAMS technique with dynamic reliability has been tried, nor a computer-aided tool that plays as expert system has been coded yet. The aim of this paper is to fill this gap with a simulation formalism and a modelling tool able to combine the Dynamic Fault Tree technique and the Stochastic Hybrid Automaton within the Simulink environment. To this aim the MatCarloRE toolbox was adapted to interact with a Simulink dynamic system. The resulting assembly represents an important step ahead for the delivering of a user-friendly computer-aided tool for the dynamic reliability.

Lingua originaleInglese
pagine (da-a)42-57
Numero di pagine16
RivistaExpert Systems with Applications
Volume47
DOI
Stato di pubblicazionePubblicato - 1 apr 2016
Pubblicato esternamente

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