Systems Engineering and Electronics ›› 2024, Vol. 46 ›› Issue (12): 4062-4073.doi: 10.12305/j.issn.1001-506X.2024.12.15

• Systems Engineering • Previous Articles    

Model-based fault identification and modeling method for space propulsion system

Yaqun QI1,2, Ping JIN1,3,*, Qibo PENG4, Hailian ZHANG2, Guobiao CAI1,3   

  1. 1. School of Astronautics, Beihang University, Beijing 102206, China
    2. China Manned Space Agency, Beijing 100071, China
    3. National Key Laboratory of Aerospace Liquid Propulsion, Beijing 102206, China
    4. China Astronaut Research and Training Center, Beijing 100094, China
  • Received:2024-01-22 Online:2024-11-25 Published:2024-12-30
  • Contact: Ping JIN

Abstract:

To comprehensively identify the fault modes of complex systems, a method based on model-based systems engineering (MBSE) principles is proposed to synchronously identify potential faults from the three dimensions of functionality, performance, and structure in the forward design and modeling process of complex systems. Utilizing the extension mechanism of the system modeling language (SysML), the corresponding fault base models are developed for modeling fault modes and associated elements. Taking the propulsion system of the new generation manned spacecraft as an example, the process of fault identification and modeling is described in detail. The proposed method, rooted in the standardized, normalized, and multi-dimensional fault modeling process of MBSE, enables thorough identification and modeling of potential faults in complex systems, avoiding the problem of previous methods that heavily relied on individual expertise and judgment, which provides a foundation for reliability and safety analysis in model-based complex system domains.

Key words: model-based system engineering (MBSE), fault identification, fault modeling, reliability analysis, safety analysis, propulsion system

CLC Number: 

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