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http://dx.doi.org/10.5139/JKSAS.2022.50.4.259

Proposal of a Fail-Safe Requirement Analysis Procedure to Identify Critical Common Causes an Aircraft System  

Lim, San-Ha (Rotary-wing Division, Korea Aerospace Industries)
Lee, Seon-ah (Department of Aerospace and Software Engineering, Department of AI Convergence Engineering, Gyeongsang National University)
Jun, Yong-Kee (Department of Aerospace and Software Engineering, Department of AI Convergence Engineering, Gyeongsang National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.4, 2022 , pp. 259-267 More about this Journal
Abstract
The existing method of deriving the fail-safe design requirements for the domestic developed rotary-wing aircraft system may miss the factors that cause critical system function failures, when being applied to the latest integrated avionics system. It is because the existing method analyzes the severity effect of the failures caused by a single item. To solve the issue, we present a systematic analysis procedure for deriving fail-safe design requirements of system architecture by utilizing functional hazard assessment and development assurance level analysis of SAE ARP4754A, international standard for complex system development. To demonstrate that our proposed procedure can be a solution for the aforementioned issue, we set up experimental environments that include common factors that can cause critical function failures of a system, and we conducted a cross-validation with the existing method. As a result, we showed that the proposed procedure can identify the potential critical common factors that the existing method have missed, and that the proposed procedure can derive fail-safe design requirements to control the common factors.
Keywords
Fail-Safe Design Requirement; Rotary-Wing Aircraft System; System Safety Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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