Bingfeng Liu, Mingli Dong, Guangkai Sun, Yanlin He, Lianqing Zhu. Strain transfer characteristics of fiber Bragg grating sensor in aerostat flexible composite skin deformation[J]. Infrared and Laser Engineering, 2021, 50(5): 20200315
- Infrared and Laser Engineering
- Vol. 50, Issue 5, 20200315 (2021)
Fig. 1. Surface bonded structure of uncoated FBG
Fig. 2. Schematic diagram of force transfer of three-layer structure
Fig. 3. Finite element model of sensing structure
Fig. 4. Fiber axial strain distribution along the length
Fig. 5. Error curves between theoretical value and simulated value
Fig. 6. Comparison of results of maximum strain transfer rate and average strain transfer rate of FBG sensors with different gauge lengths
Fig. 7. Effect of adhesive layer width Da and length L on average strain transfer rate
Fig. 8. Effect of the thickness of the upper (lower) adhesive layer on the average strain transfer rate
Fig. 9. Effect of elastic modulus of adhesive layer on the average strain transfer rate
Fig. 10. Effect of Poisson’s ratio of adhesive layer on average strain transfer rate
Fig. 11. Effect of elastic modulus of skin structure on average strain transmission rate
Fig. 12. Effect of skin structure thickness on average strain transfer rate
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Table 1. Material parameters of each layer structure
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Table 2. Structure parameters of pasted layer
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Table 3. Skin structure parameters
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Table 4. FBG sensing structure parameter selection
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