Xu Zhang, Maosheng Hou, Zhichao Liu, Tao Liu, Lijuan Li. Surface Reconstruction Algorithm of Plate-Shell Structure Based on Fiber Bragg Grating Sensor[J]. Laser & Optoelectronics Progress, 2020, 57(9): 090603
- Laser & Optoelectronics Progress
- Vol. 57, Issue 9, 090603 (2020)
Fig. 1. Schematic diagram of fiber grating sensing
Fig. 2. Schematic diagram of the deformation of the micro-element structure
Fig. 3. Flow chart of surface reconstruction algorithm
Fig. 4. Flow chart of piecewise fitting algorithm
Fig. 5. Diagram of curve arc division
Fig. 6. Schematic diagram of projection coordinate transformation reconstruction algorithm
Fig. 7. Sinusoidal reconstruction diagram
Fig. 8. Distribution of plate shell curvature
Fig. 9. Diagram of experimental device for detecting strain
Fig. 10. Strain distribution of ANSYS
Fig. 11. Distributed array of FBG sensors
Fig. 12. Reconstruction of plate surface
Fig. 13. Three-dimensional structure diagram of ANSYS
Fig. 14. Comparison graph of algorithm reconstruction strain and ANSYS simulation strain
Fig. 15. Comparison of algorithm reconstruction displacement and simulation displacement at the x-direction measuring point
Fig. 16. Comparison of algorithm reconstruction displacement and simulation displacement at the y-direction measuring point
Fig. 17. Comparison of algorithm reconstruction displacement and simulation displacement at the z-direction measuring point
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Table 1. FBG sensor wavelength offset at F=-10 N
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