China Safety Science Journal ›› 2023, Vol. 33 ›› Issue (7): 16-23.doi: 10.16265/j.cnki.issn1003-3033.2023.07.1884

• Safety social science and safety management • Previous Articles     Next Articles

Safety risk assessment of civil aviation air parking events based on DBN

CHEN Fang1(), CUI Qingmin1, XIANG Qianqiu2   

  1. 1 School of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China
    2 Civil Aviation Airport Chengdu Electronic Engineering Design Co., Ltd., Chengdu Sichuan 610041, China
  • Received:2023-02-10 Revised:2023-05-12 Online:2023-07-28 Published:2024-01-28

Abstract:

In order to explore the impact and evolution of organizational and human factors on IFSD events of engine and to evaluate the risk level of airline IFSD events, a risk assessment model was built for civil aviation IFSD based on DBN. Firstly, the active and passive methods were used to identify the organizational and human factors that affected the occurrence of IFSD. Secondly, Pythagorean fuzzy DEMATEL was used to explore the causal relationship between risk factors. Then, the DBN of civil aviation IFSD was constructed based on the obtained causal relationship, and the parameters were obtained based on statistical analysis and expert experience. The occurrence probability of IFSD events was obtained through GeNle probability reasoning. Finally, the CFM56-5B engine of S Airlines was taken as an example to conduct the safety risk assessment of IFSD events. The results indicate that the probability of air stop of CFM56-5B engine of S Airlines from 2020 to 2021 is 1.260×10-6 and 1.352×10-6, respectively. The main reason for the change in safety risks of civil aviation IFSD events is that the decrease in "resource investment" leads to the decrease in the effectiveness of "education and training", which in turn affects "work style awareness" and "cooperation and communication".

Key words: dynamic Bayesian networks (DBN), in flight shut-down (IFSD), risk assessment, Pythagoras fuzzy, decision making trial and evaluation laboratory (DEMATEL)