Journal of System Simulation ›› 2018, Vol. 30 ›› Issue (7): 2729-2735.doi: 10.16182/j.issn1004731x.joss.201807037

Previous Articles     Next Articles

Airframe Damage Region Division Evaluation Method Based on Boundary Grid Gradient

Cai Shuyu, Shi Lizhong   

  1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China
  • Received:2017-07-10 Online:2018-07-10 Published:2019-01-08

Abstract: In order to provide decision support for efficiently choosing and evaluating airframe damage region division methods, the characteristic of airframe damage region was analyzed, evaluating indicator of damage image division-boundary grid gradient was established. By introducing entropy method, combining with indicator of boundary grid gradient, the optimization of TOPSIS was presented, and the evaluation system of airframe damage region division was completely established. Airframe damage region division evaluation experiments were performed by different gray level entropy threshold of damage division image. Experimental results showed that, the proposed method efficiently represented division status of damage adjacency region, and avoided the adverse effect of boundary changing in different division image on evaluation. The evaluation result corresponded well with visual perception.

Key words: airframe damage region division, damage division evaluation method, boundary grid gradient, entropy method, ideal solution

CLC Number: