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Complex state networks based safety analysis of complex engineering systems considering closed-loop feedback

Author

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  • Li, Mingzhe
  • She, Zhikun
  • Xu, Dan
  • Song, Xueying
  • Jia, Wei

Abstract

The safety analysis of complex engineering systems with closed-loop control is a key research focus in the field of safety theory. In this paper, we aim to explore and develop a safety analysis method that takes closed-loop control into consideration. A safety analysis method for systems with closed-loop feedback is proposed, based on a complex state network model that integrates finite state machine networks (FSMN) and the attractor theory of dissipative systems. It resorts to finite state machine networks (FSMN) distinguishing physical flow and data flow and the corresponding evolving rules for constructing complex state networks. FSMN is utilized to simulate system state transitions under various potential failure modes, while the attractor theory of dissipative systems helps analyze the evolutionary process of system states. Based on the generated system state evolving network, safety region identification and failure propagation analysis were conducted. Finally, this method was applied to a blended wing body (BWB) aircraft, and its effectiveness and feasibility were validated.

Suggested Citation

  • Li, Mingzhe & She, Zhikun & Xu, Dan & Song, Xueying & Jia, Wei, 2025. "Complex state networks based safety analysis of complex engineering systems considering closed-loop feedback," Reliability Engineering and System Safety, Elsevier, vol. 259(C).
    • Handle: RePEc:eee:reensy:v:259:y:2025:i:c:s0951832025001346
    DOI: 10.1016/j.ress.2025.110931
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