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Prise en compte des séquences de défaillances pour la conception de systèmes d'automatisation. Application au ferroutage

Abstract : This thesis deals with a design problem of dependable automated systems using scenarios. In order to determine an optimal system, having fast tools for modelling and evaluating dependability is important. These tools allow the set of possible architectures to be evaluated, and the impact of failures to be studied. The main considered questions include the determination of an equipment architecture, its optimization according to such criteria as the minimal length of scenarios, and its number of combinations. A new graphical model, called improved multi fault tree, which is enough accurate to model component organizations and scenarios, is proposed for this problem. This model uses temporal operators and failure relationships to model system's behaviour in presence of multiple failures. Application of this method to the railroad piggybacking transportation system is also presented. Results obtained for a fire detection and a stowing protection system are presented. A comparison between the proposed approach and the classical dependability approach shows the benefits of this new methodology. The integration of this research in a software for designing dependable automated systems (ALoCSyS) is described.
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https://tel.archives-ouvertes.fr/tel-00460336
Contributor : Joffrey Clarhaut <>
Submitted on : Saturday, February 27, 2010 - 3:38:53 PM
Last modification on : Tuesday, November 24, 2020 - 2:18:22 PM
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Joffrey Clarhaut. Prise en compte des séquences de défaillances pour la conception de systèmes d'automatisation. Application au ferroutage. Automatique / Robotique. Université des Sciences et Technologie de Lille - Lille I, 2009. Français. ⟨tel-00460336⟩

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