Abstract
The safety monitoring and tracking of aircraft is becoming more and more important. Under aerodynamic loading, the aircraft wing will produce large bending and torsional deformation, which seriously affects the safety of aircraft. The variation of load on the aircraft wing directly affects the ground observation performance of the aircraft baseline. To compensate for baseline deformations caused by wing deformations, it is necessary to accurately obtain the deformation of the wing shape. The traditional aircraft wing shape measurement methods cannot meet the requirements of small size, light weight, low cost, anti-electromagnetic interference, and adapting to complex environment at the same time, the fiber optic sensing technology for aircraft wing shape measurement has been gradually proved to be a real time and online dynamic measurement method with many excellent characteristics. The principle technical characteristics and bonding technology of fiber Bragg grating sensors (FBGs) are reviewed in this paper. The advantages and disadvantages of other measurement methods are compared and analyzed and the application status of FBG sensing technology for aircraft wing shape measurement is emphatically analyzed. Finally, comprehensive suggestions for improving the accuracy of aircraft wing shape measurement based on FBG sensing technology is put forward.
Highlights
The USA is the birthplace of aircraft
A summary is made to Principle and Technical make recommendations for aircraft wing shape measurement and monitoring system based on fiber Bragg grating sensors (FBGs)
The results show that the dynamic strains measured by FBGs have a good agreement with electric strain gauge (ESG)
Summary
The USA is the birthplace of aircraft. In recent decades, the USA aircraft research and development technology has been leading the world and different aircraft used in various fields have been developed. Performance of its reliability guarantee system has great advantages development prospects.cost on the application of the new generation of FBGs in aircraft wing shape measurement. FBG size, uses factors [9] It is suitable for online measurement of stress, strain and temperature outside or inside light weight,coding, strong anti-electromagnetic interference ability and of self-tuning function [7,8]. With the development of science andand technology, wavelength which is slightly affected by the fluctuation of system light source external factors [9] It is suitable for online measurement of stress, strain and temperature outside or inside the manufacturing and application of carbon fiberstrain materials more and more mature, and it factors [9].
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