Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (7): 2191-2200.doi: 10.12305/j.issn.1001-506X.2022.07.15

• Systems Engineering • Previous Articles     Next Articles

System-of-systems effectiveness evaluation method based on functional dependency network

Shunqi HUAN1,2, Zhemei FAN1,2,*, Jianbo WANG3   

  1. 1. School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan 430074, China
    2. National Key Laboratory of Science & Technology on Multi-spectral Information Processing, Huazhong University of Science and Technology, Wuhan 430074, China
    3. China Ship Development and Design Center, Wuhan 430064, China
  • Received:2021-06-01 Online:2022-06-22 Published:2022-06-28
  • Contact: Zhemei FAN

Abstract:

Developing effective combat system-of-systems (SoS) requires appropriate effectiveness evaluation methods. However, most current evaluation methods are short of capturing the complex interdependencies. This paper thus brings in a functional dependency network analysis (FDNA) method that is able to depict the interdependency relationship and its cascading effects within an SoS, using two interdependency parameters and a piece-wise linear model. This paper keeps the advantages of FDNA while overcoming some of the shortfalls. Particularly, this paper proposes operation loop based modeling rules for building functional dependency network of combat SoSs. Meanwhile, this paper adjusts and completes the effectiveness aggregation model through adding interdependency health index, synthetic criticality of dependency, and multi-systems redundancy voting system. This new extended FDNA (E-FDNA) method is able to reflect the SoS effectiveness under more combat scenarios. In the end, the E-FDNA method is applied to a naval air and missile SoS. The comparison with current FDNA related methods and complex network theory method, regarding the effectiveness value and critical system identification respectively, demonstrates the feasibility and effectiveness of the E-FDNA method. Hence the proposed E-FDNA method offers a new method for SoS effectiveness evaluation.

Key words: combat system-of-systems (SoS), effectiveness evaluation, functional dependency network analysis (FDNA)

CLC Number: 

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