Picture of automobile manufacturing plant

Driving innovations in manufacturing: Open Access research from DMEM

Strathprints makes available Open Access scholarly outputs by Strathclyde's Department of Design, Manufacture & Engineering Management (DMEM).

Centred on the vision of 'Delivering Total Engineering', DMEM is a centre for excellence in the processes, systems and technologies needed to support and enable engineering from concept to remanufacture. From user-centred design to sustainable design, from manufacturing operations to remanufacturing, from advanced materials research to systems engineering.

Explore Open Access research by DMEM...

Coherence region of the Priority-AND gate : analytical and numerical examples

Chiacchio, Ferdinando and Aizpurua, Jose Ignacio and D'Urso, Diego and Compagno, Lucio (2017) Coherence region of the Priority-AND gate : analytical and numerical examples. Quality and Reliability Engineering International. ISSN 0748-8017 (In Press)

[img] Text (Chiachhio-etal-QREI-2017-Coherence-region-of-the-Priority-AND-gate-analytical-and-numerical-examples)
Chiachhio_etal_QREI_2017_Coherence_region_of_the_Priority_AND_gate_analytical_and_numerical_examples.pdf - Accepted Author Manuscript
Restricted to Repository staff only until 6 October 2018.

Download (6MB) | Request a copy from the Strathclyde author

Abstract

In recent years, the need for a more accurate dependability modelling (encompassing reliability, availability, maintenance, and safety) has favoured the emergence of novel dynamic dependability techniques able to account for temporal and stochastic dependencies of a system. One of the most successful and widely used method is Dynamic Fault Tree that, with the introduction of the dynamic gates, enables the analysis of dynamic failure logic systems such as fault-tolerant or reconfigurable systems. Among the dynamic gates, Priority-AND (PAND) is one of the most frequently used gate for the specification and analysis of event sequences. Despite the numerous modelling contributions addressing the resolution of the PAND gate, its failure logic and the consequences for the coherence behaviour of the system need to be examined to understand its effects for engineering decision-making scenarios including design optimization and sensitivity analysis. Accordingly, the aim of this short communication is to analyse the coherence region of the PAND gate so as to determine the coherence bounds and improve the efficacy of the dynamic dependability modelling process.