Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (4): 1265-1274.doi: 10.12305/j.issn.1001-506X.2025.04.23

• Systems Engineering • Previous Articles     Next Articles

Comprehensive evaluation method for aircraft hard landing risk considering multiple coupled interactions

Lei DONG1,2, Yuanshan ZHANG3, Xi CHEN1,2,*, Jiachen LIU1,4, Xinqi PENG1,4   

  1. 1. Key Laboratory of Civil Aircraft Airworthiness Technology, Civil Aviation University of China, Tianjin 300300, China
    2. Science and Technology Innovation Research Institute, Civil Aviation University of China, Tianjin 300300, China
    3. Shanghai Aircraft Flight Test Company Limited, Shanghai 200232, China
    4. College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China
  • Received:2023-11-15 Online:2025-04-25 Published:2025-05-28
  • Contact: Xi CHEN

Abstract:

To effectively evaluate the safety risk of aircraft hard landing, which is a typical unfavorable flight state, a comprehensive evaluation method of aircraft hard landing risk considering multiple coupling interaction is proposed in this paper. Correlation analysis is carried out on the preprocessed quick access recorder (QAR) data, and six flight parameters, such as altitude rate, vertical acceleration, angle of attack, etc., are selected as the hard landing risk research factors, and the landing risk coefficient calculation method is proposed by analyzing the data characteristics of the visualization curves. Trapezoidal fuzzy decision-making trial and evaluation laboratory (DEMATEL) method, which integrates the subjective experience of experts, is used to determine the coupled weights and optimize the risk coefficients, so as to construct a comprehensive cloud model for normal landing and hard landing segments. Numerical analysis is performed using flight data from 20 000 segments to demonstrate that the proposed method accurately maps QAR data in the landing phase to the risk evaluation space, and that the proposed method that incorporates risk weights improves the identification performance of hard landing segments significantly.

Key words: hard landing, risk evaluation, quick access recorder (QAR) data, coupled interaction, decision-making trial and evaluation laboratory (DEMATEL) method

CLC Number: 

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