Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (10): 3026-3032.doi: 10.12305/j.issn.1001-506X.2021.10.39

• Relability • Previous Articles    

Research on risk assessment method of aircraft heavy landing based on interaction matrix-multidimensional cloud model

Jiahui SHI, Jihui XU*, Yujin CHEN, Xiaolin WANG   

  1. Equipment Management and Unmanned Aerial Vehicle Engineering College, Air Force Engineering University, Xi'an 710051, China
  • Received:2020-11-17 Online:2021-10-01 Published:2021-11-04
  • Contact: Jihui XU

Abstract:

Aiming at the systemicity, complexity and multi-factor influence of the aircraft's heavy landing risk, this paper starts from the system perspective and proposes a model that can reflect the interaction between factors-factors and factors-systems—interaction matrix. Using multi-dimensional clouds to improve its coding, it can effectively weaken the subjectivity of the interaction matrix. Then, ground speed deviation, ground elevation deviation, ground vertical acceleration and ground distance deviation are selected as the influencing factors of the heavy landing risk determining the importance of the factors based on the system angle. Then, this paper combines each risk factor with multi-dimensional cloud theory to generate five four-dimensional risk grade cloud models and realizes examples with software programs. It is consistent with the actual risk level, combined weighting cloud and evidence-cloud assessment results which proves that the proposed method is reasonable and effective and provides a reference for reducing risks in the landing stage.

Key words: heavy landing, interaction matrix, multidimensional cloud, risk assessment

CLC Number: 

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