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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2021, Vol. 42 ›› Issue (9): 324674-324674.doi: 10.7527/S1000-6893.2020.24674

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Analysis and evaluation of fault propagation behavior of aircraft all-electric brake system under DIMA architecture

YAN Fang1,2,3, XIANG Chenyang2,3, DONG Lei1,2,3, WANG Peng1,2,3   

  1. 1. Key Laboratory of Civil Aircraft Airworthiness Technology, Civil Aviation University of China, Tianjin 300300, China;
    2. Civil Aircraft Airworthiness and Repair Key Laboratory of Tianjin, Civil Aviation University of China, Tianjin 300300, China;
    3. School of Airworthiness, Civil Aviation University of China, Tianjin 300300, China
  • Received:2020-08-27 Revised:2020-10-10 Published:2020-10-23
  • Supported by:
    Joint Found of the National Natural Science Foundation of China and the Civil Aviation Administration of China(U1933106);Aeronautical Science Foundation of China(20185167017);Fundamental Research Funds for the Central Universities(3122019167)

Abstract: Against the background of the open architecture of Distributed Integrated Modular Avionics platform, aircraft avionics and electromechanical system functions gradually permeate and integrate with each other. The DIMA architecture oriented all-electric brake system is the mainstream design trend of the future aircraft brake system; however, the failure propagation behavior analysis and evaluation method for the all-electric brake system under the DIMA architecture has not been formed yet. Aiming at this problem, we analyze the layered architecture of the DIMA architecture oriented all-electric brake system, combining the characteristics of the DIMA architecture and relevant standards of all-electric brakes, and on this basis, establish the task-function-resource hierarchical model of the all-electric brake system. Secondly, considering the resource sharing characteristic of the DIMA platform, we conduct the system coupling relation analysis, calculate the indirect coupling matrix and routing matrix by introducing the Floyd algorithm, establish the system structure of the fault propagation model by constructing the failure severity associated coupling matrix quantization system, and build the fault transmission intensity model of the all-electric brake system under the DIMA framework considering fault path transmission probability and the edge betweenness to identify the critical path of system fault propagation and complete the analysis and evaluation of the failure propagation behavior. Finally, an example is provided to verify the correctness and rationality of the proposed method.

Key words: DIMA, aircraft all-electric brake system, coupling correlation, failure propagation, Floyd algorithm

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