Dynamic reliability modeling using Valuation-Based System

Siqi Qiu (1, 2) , Mohamed Sallak (1, 2) , Walter Schön (1, 2) , Zohra Cherfi-Boulanger (3)

1 Labex MS2T - Laboratoire d'Excellence "Maîtrise des Systèmes de Systèmes Technologiques"
2 Heudiasyc - Heuristique et Diagnostic des Systèmes Complexes [Compiègne]
3 Roberval - Roberval

This paper describes dynamic Valuation-Based System (VBS) for reliability assessment of systems under uncertainty. The reliability data and dependencies between components are represented using variables, sample spaces of variables, a set of valuations represented by probabilities, and basic probability assignments (bpas) that map sample spaces of sets of variables to the set of valuations. The uncertainties considered here are related to the states of components and their dependencies. The imprecise reliability of systems under uncertainty is estimated by an interval composed of upper and lower bounds. The proposed dynamic VBS approach is finally applied on a valve system and compared to the classical Bayesian Network approach.

Mots clés: Dynamic model; Model uncertainty; Modeling.; Modeling; Valuation-Based System (VBS); Reliability assessment

Domaines: Performance et fiabilité [cs.PF]; Modélisation et simulation

Siqi Qiu, Mohamed Sallak, Walter Schön, Zohra Cherfi-Boulanger. Dynamic reliability modeling using Valuation-Based System. 19th IFAC World Congress (IFAC WC 2014), Aug 2014, Cape Town, South Africa. ⟨hal-01060563⟩