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

Authors
Lim, San-HaLee, Seon-ahJun, Yong-Kee
Issue Date
2022
Publisher
KOREAN SOC AERONAUTICAL & SPACE SCIENCES
Keywords
Fail-Safe Design Requirement; Rotary-Wing Aircraft System; System Safety Analysis
Citation
JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, v.50, no.4, pp.259 - 267
Indexed
KCI
Journal Title
JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
Volume
50
Number
4
Start Page
259
End Page
267
URI
https://scholarworks.bwise.kr/gnu/handle/sw.gnu/2816
DOI
10.5139/JKSAS.2022.50.4.259
ISSN
1225-1348
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.
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공과대학 > Department of Aerospace and Software Engineering > Journal Articles

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