Yan Jie, Li Wei, Jiang Mingshun, Zhang Lei, Zhang Faye, Sui Qingmei. Shape Perception and Three-Dimensional Reconstruction Technology of Plate Structure Based on Fiber Bragg Grating Sensor[J]. Chinese Journal of Lasers, 2020, 47(11): 1106006
- Chinese Journal of Lasers
- Vol. 47, Issue 11, 1106006 (2020)
Fig. 1. Schematic diagram of spacecraft structure
Fig. 2. Modal analysis diagrams obtained by finite element analysis. (a) First-order strain mode; (b) second-order strain mode; (c) third-order strain mode
Fig. 3. Strain and deformation cloud maps under two central displacements. (a)(b) 0.3 mm; (c)(d) 1.8 mm
Fig. 4. Diagram of fiber Bragg grating sensor network
Fig. 5. Diagram of micro-element segment before and after deformation
Fig. 6. Diagram of orthogonal network of plate structure
Fig. 7. Coordinate conversion diagram
Fig. 8. Diagram of relationship between deformation curve and flat plane
Fig. 9. Experimental system of deformation detection based on fiber Bragg grating sensing technology
Fig. 10. Reconstruction maps of three-dimensional deformed surfaces with different center displacements. (a) 0.5 mm; (b) 1.0 mm; (c) 1.5 mm; (d) 2.0 mm
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Table 1. Error analysis table for center displacement of 0.5 mm
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Table 2. Error analysis table for center displacement of 1.0 mm
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Table 3. Error analysis table for center displacement of 1.5 mm
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Table 4. Error analysis table for center displacement of 2.0 mm
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Table 5. Table of mean error analysis under different center displacements
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