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Contributions à la Modélisation et à l'Évaluation de la Sûreté de Fonctionnement de Systèmes de Sécurité à Fonctionnalités Numériques

Abstract : The use of new technologies in safety-related systems gives rise to specific issues with respect to risk management, and it needs having probabilistic evaluation tools adapted to the increasing complexity of systems. The thesis works presented in this dissertation contribute to the dependability evaluation of safety-related systems, and especially for digital-based transmitters, which combine data acquisition with information processing and transmission. The aim is to extend the dependability modelling methods in order to take at best the various interactions and dynamic behaviours of the systems into account. The first proposed model allows to represent the functional and material aspects of a safety system, the faults and failures, as well as the different relations between elements. This modelling framework is used as support to perform reliability analyses and uncertainty analyses with regard to parameters and model. A second contribution assumes the transmitters as part of control systems and aims to model the interactions between transmitters, and the interactions with the other systems' components and the process, using a dynamic reliability framework.
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https://tel.archives-ouvertes.fr/tel-00553045
Contributor : Florent Brissaud <>
Submitted on : Thursday, January 6, 2011 - 2:50:30 PM
Last modification on : Friday, October 23, 2020 - 4:38:12 PM
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Florent Brissaud. Contributions à la Modélisation et à l'Évaluation de la Sûreté de Fonctionnement de Systèmes de Sécurité à Fonctionnalités Numériques. Sciences de l'ingénieur [physics]. Université de Technologie de Troyes, 2010. Français. ⟨tel-00553045⟩

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