Airframe Damage Region Division Evaluation Method Based on Boundary Grid Gradient

Authors

Shuyu Cai, College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China;
Lizhong Shi, College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China;

Abstract

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.

Recommended Citation

Cai, Shuyu and Shi, Lizhong (2019) "Airframe Damage Region Division Evaluation Method Based on Boundary Grid Gradient," Journal of System Simulation: Vol. 30: Iss. 7, Article 37.
DOI: 10.16182/j.issn1004731x.joss.201807037
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss7/37

First Page

2729

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201807037

Last Page

2735

CLC

TP391

Recommended Citation

Cai Shuyu, Shi Lizhong. Airframe Damage Region Division Evaluation Method Based on Boundary Grid Gradient[J]. Journal of System Simulation, 2018, 30(7): 2729-2735.

DOI

10.16182/j.issn1004731x.joss.201807037