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| Current Status and Prospect of Defect Detection of Aircraft Skin |
| LIU Fang 1 , XIA Guisuo 1 , WEN Zhihui 1 , LI Zhe 2 , XU Qilin 1 |
1. Key Laboratory of Nondestructive Testing of the Ministry of Education, Nanchang Hangkong University,Nanchang 330063, China ;
2. AECC Shenyang Liming Aero-Engine Co., Ltd., Shenyang 110043, China |
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Abstract In the process of aircraft assembly, uneven gaps and steps will be formed at the seams of the aircraft skin. In addition, dents, cracks, corrosion and other defects will be produced in the skin during the service process. Due to these defects, the strength of the skin will be weakened and the carrying capacity will be reduced, which will eventually affect the aerodynamic performance of aircraft and endanger flight safety. The detection of aircraft skin defects accounted for a large proportion in aircraft maintenance, consequently it is crucial for aircraft safety. This paper introduced seven common defects of aircraft skin, and analyzed the causes, locations and hazards of these defects. On the basis of the location of these defects, the defects were divided into three categories, and the development status of various kinds of detection technology of skin defects was systematically described. The status quo of aircraft skin detection technology was summarized, and the development prospect of skin defect detection was prospected.
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2021, 
