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Modular Criticality Analysis for Dynamic Fault Trees [PDF]
Fault trees are commonly used to model fault occurrence and propagation in safety-critical systems. A common analysis question is “how critical is a component failure for the overall system reliability?” These insights allow to guide and tailor system improvements.
Falak Sher +2 more
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SensorsAs embedded systems become increasingly complex, traditional reliability analysis methods based on text alone are no longer adequate for meeting the requirements of rapid and accurate quantitative analysis of system reliability.
Changyong Chu, Weikang Yang, Yajun Chen
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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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BDDs Strike Back:Efficient Analysis of Static and Dynamic Fault Trees [PDF]
, 2022 Fault trees are a key model in reliability analysis. Classical static fault trees (SFT) can best be analysed using binary decision diagrams (BDD). State-based techniques are favorable for the more expressive dynamic fault trees (DFT). This paper combines
Volk, Matthias +4 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
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The Dynamic Fault Tree Rare Event Simulator [PDF]
, 2020 The dynamic-fault-tree rare event simulator, DFTRES, is a statistical model checker for dynamic fault trees (DFTs), supporting the analysis of highly dependable systems, e.g. with unavailability or unreliability under 10^(-30). To efficiently estimate such low probabilities, we apply the Path-ZVA algorithm to implement Importance Sampling with minimal ...
Carlos E. Budde +2 more
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Dynamic Fault Tolerance with Misrouting in Fat Trees [PDF]
2006 International Conference on Parallel Processing (ICPP'06), 2006 Fault tolerance is critical for efficient utilisation of large computer systems. Dynamic fault tolerance allows the network to remain available through the occurance of faults as opposed to static fault tolerance which requires the network to be halted to reconfigure it.
Frank Olaf Sem-Jacobsen +3 more
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Reliability Dynamic Analysis by Fault Trees and Binary Decision Diagrams
Information, 2020 New wind turbines are becoming more complex and reliability analysis of them rising in complexity. The systems are composed of many components. Fault tree is used as an useful tool to analyze these interrelations and provide a scheme of the wind turbine,
Fausto Pedro García Márquez +3 more
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Machine condition prognosis based on regression trees and one-step-ahead prediction [PDF]
, 2008 Predicting the degradation of working conditions of machinery and trending of fault propagation before they reach the alarm or failure threshold is extremely important in industry to fully utilize the machine production capacity.
Yang, Bo-Suk +5 more
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Influence of Load on Reliability of Storage Area Networks [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2021 During the coronavirus pandemic, telecommuting is widely required, making remote data access grow significantly. This requires highly reliable data storage solutions. Storage area networks (SANs) are one of such solutions.
Guixiang Lv, Liudong Xing
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