Results 21 to 30 of about 5,413 (299)
Advancing Dynamic Fault Tree Analysis
CoRR, 2016 This paper presents a new state space generation approach for dynamic fault trees (DFTs) together with a technique to synthesise failures rates in DFTs. Our state space generation technique aggressively exploits the DFT structure --- detecting symmetries, spurious non-determinism, and don't cares.
Matthias Volk 0001 +2 more
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Applied Sciences, 2023 The operational reliability of rail vehicle pantograph systems is evaluated by transforming T-S multistate fault trees into dynamic Bayesian networks (DBNs), which take into account system multistability, long-lasting operation, dynamic failure, and ...
Yafeng Chen +5 more
doaj +1 more source
Application of the dynamic FMEA in the reliability analysis of DCS [PDF]
E3S Web of Conferences, 2020 Digital distributed instrumentation and control system (DCS) is critical to the safety of nuclear power plants (NPPs). Static analysis methods developed from analog control system are not applicable to DCS due to its enhanced dynamic interactions and ...
Yankai Li, Xu Wang, Meng Lin
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Applied Sciences, 2022 The failure that occurs during the dry-type transformer temperature monitoring sensor working will result in wrong data output, which may cause the monitor and monitoring background to respond incorrectly.
Mingze Zheng +3 more
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A Modular Approach to Non-deterministic Dynamic Fault Trees [PDF]
, 2021 Dynamic Fault Trees (DFTs) are powerful tools for deriving fault-tolerant system designs. However, deterministic approaches to DFTs suffer from semantic struggles with problems such as spare races. In this paper, we discuss the added complexity in the state-space representation of a non-deterministic DFT model and propose a modularized approach for ...
Müller, Sascha +3 more
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Nuclear Engineering and Technology, 2016 The safety of nuclear power plants is analyzed by a probabilistic risk assessment, and the fault tree analysis is the most widely used method for a risk assessment with the event tree analysis.
Seung Ki Shin +2 more
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Algebraic determination of the structure function of Dynamic Fault Trees [PDF]
Reliability Engineering & System Safety, 2011 This paper presents an algebraic framework allowing to algebraically model dynamic gates and determine the structure function of any Dynamic Fault Tree (DFT). This structure function can then be exploited to perform both the qualitative and quantitative analysis of DFTs directly, even though this latter aspect is not detailed in this paper.
Guillaume Merle +2 more
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Modeling dynamic reliability using dynamic Bayesian networks [PDF]
, 2006 This paper considers the problem of modeling and analyzing the reliability of a system or a component (system) where the state of the system and the state of process variables influences each other in addition to an exogenous perturbation influence: this
Noyes, Daniel, Tchangani, Ayeley
core +1 more source
Information, 2019 Dependability assessment is one of the most important activities for the analysis of complex systems. Classical analysis techniques of safety, risk, and dependability, like Fault Tree Analysis or Reliability Block Diagrams, are easy to implement, but ...
Ferdinando Chiacchio +4 more
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Nuclear Engineering and Technology, 2022 Dynamic fault tree (DFT) and its related research methods have received extensive attention in safety analysis and reliability engineering. DFT can perform reliability modelling for systems with sequential correlation, resource sharing, and cold and hot ...
Fang Zhao +5 more
doaj +1 more source