Dynamic Fault Tree Generation for Safety-Critical Systems Within a Systems Engineering Approach

Baklouti, Anis; Nguyen, Nga; Mhenni, Faïda; Choley, Jean-Yves; Mlika, Abdelfattah

doi:10.1109/jsyst.2019.2930184

Cited by 11 publications

(3 citation statements)

References 31 publications

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“…Baklouti et al 65 . proposed a set of multi‐directional graphs based on depth‐first search graph for dynamic fault tree generation of redundant systems.…”

Section: Resultsmentioning

confidence: 99%

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Integration frameworks and intelligent research in dynamic fault tree: A comprehensive review and future perspectives

Zhu

Jiang

et al. 2023

Quality & Reliability Eng

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Dynamic fault tree (DFT) is designed to conduct risk assessment studies of complex systems. With the development of intelligent and network technology, risk assessment technology faces a leap forward development. The requirements for improving system safety are being recognized. On the one hand, research on DFT is exploring the integration with different methods. On the other hand, DFT method becomes more intelligent. The purpose of this paper is to identify the feasibility and effectiveness of different integration frameworks. To achieve this goal, a suitable review process is proposed. This paper comprehensively reviews and proposes future perspective the research status of intellectualization in DFT, and focuses on the different types of integration framework of DFT, modeling technology and algorithm optimization, and the support of computer‐aided analysis. Theoretical contributions, frameworks features, and the development process of computer intelligent analysis in the scientific and technical literature are carefully reviewed. Finally, the challenges in future research are summarized to promote the development of intelligent evaluation.

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“…Baklouti et al 65 . proposed a set of multi‐directional graphs based on depth‐first search graph for dynamic fault tree generation of redundant systems.…”

Section: Resultsmentioning

confidence: 99%

“…Baklouti et al 65 proposed a set of multi-directional graphs based on depth-first search graph for dynamic fault tree generation of redundant systems. Then, the system model was used to generate the appropriate combination of FT, and the DFT analysis tool was used for research.…”

Section: Model Structurementioning

confidence: 99%

Integration frameworks and intelligent research in dynamic fault tree: A comprehensive review and future perspectives

Zhu

Jiang

et al. 2023

Quality & Reliability Eng

View full text Add to dashboard Cite

show abstract

“…e fault tree analysis method is widely used in fault diagnosis due to its simple and reliable characteristics [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Rapid Fault Diagnosis Method of Elevator System Based on Multiattribute Decision Making

Niu

et al. 2021

Shock and Vibration

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Fault tree analysis is often used in elevator fault diagnosis because of its simplicity and reliability. However, the traditional fault tree method has the problems of low efficiency due to ignoring location change of bottom events during troubleshooting. This paper proposes a rapid diagnosis method based on multiattribute decision making to solve the problem. The fault tree of the elevator system is constructed based on expert knowledge and multisource data, and the location-related matrix is constructed according to the complex vertical structure of the elevator. Then, the attributes of bottom events such as the failure probability, search cost, location time cost, and location-related attributes are comprehensively analyzed in this paper. Finally, the TOPSIS method for dynamic attributes is used based on the work above to achieve the optimal troubleshooting sequence of elevator vibration fault. The results show that the proposed method is more efficient when compared to the optimal troubleshooting sequence obtained by the traditional method.

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Model‐based systems engineering and safety assessment: A workflow for mechatronic systems design

Bouhali,

Pasquariello,

Mhenni

et al. 2024

Systems Engineering

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Mechatronic systems become ever more complex because of their increasing number of interconnected safety critical components and sophistication. MBSE (Model‐based Systems Engineering) and MBSA (Model‐Based Safety Assessment) are the most commonly adopted approaches to deal with the design and safety analysis of mechatronic systems. Unfortunately, both approaches are normally adopted separately, especially in the earlier phases of system design, thus leading to a lack of communication between system engineers and the safety team. This work aims to fill that gap at a high level, that is, through process interaction. This paper proposes an enhanced V‐model for the design of safety‐critical mechatronic systems. It relates a system development process with specific safety assessment methods. Specifically, the proposed workflow details exchange flows between the RFLP (Requirements, Functional, Logical, Physical) method, the FHA (Functional Hazard Analysis), the FMEA (Failure Mode and Effects Analysis), the MBSA and simulation, and the FTA (Fault Tree Analysis). These analyses are complemented with multiphysics modeling and simulation to observe system behavior in functional and failure scenarios, with the aim of requirements verification. The design workflow has been applied to a winged Unmanned Aerial Vehicle to apply the parallel process and the necessary interaction of MBSE and MBSA approaches. The information flows between the individual activities proved effective for designing a safe system before the verification phase. The main benefit of the proposed workflow is providing both the design and safety team with some interaction points, thus avoiding a lack of safety‐critical analysis in the early phases of system design.

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Dynamic Fault Tree Generation for Safety-Critical Systems Within a Systems Engineering Approach

Cited by 11 publications

References 31 publications

Integration frameworks and intelligent research in dynamic fault tree: A comprehensive review and future perspectives

Integration frameworks and intelligent research in dynamic fault tree: A comprehensive review and future perspectives

Rapid Fault Diagnosis Method of Elevator System Based on Multiattribute Decision Making

Model‐based systems engineering and safety assessment: A workflow for mechatronic systems design

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