1. Fiber Brag grating monitoring of a morphing wing based on a polyvinyl chloride reinforced silicone substrate
- Author
-
Yanming Song, Yanlin He, Fanyong Meng, Lianqing Zhu, and Guangkai Sun
- Subjects
Optical fiber ,Materials science ,02 engineering and technology ,Bending ,Substrate (printing) ,Grating ,Curvature ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,010309 optics ,chemistry.chemical_compound ,020210 optoelectronics & photonics ,Silicone ,Fiber Bragg grating ,chemistry ,Control and Systems Engineering ,law ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Fiber ,Electrical and Electronic Engineering ,Composite material ,Instrumentation - Abstract
Here, the three-dimensional (3D) shape monitoring of polyvinyl chloride (PVC)-reinforced silicone substrate for a morphing wing is detailed, using Fiber Bragg grating (FBG) sensors. An optical fiber FBG sensor was embedded into a soft silicone substrate, which was glued onto the surface of a PVC substrate. This substrate was aligned with the morphing wing’s flexible ribs of the. Sensing experiments were carried out both with and without the PVC reinforced silicone substrate, and the sensitivity and repeatability of the two sensors were compared. The PVC-reinforced silicone substrate sensor was calibrated using standard curvature calibration blocks to obtain a relationship between wavelength shift and the bending curvature of the PVC-reinforced silicone substrate, and the wing shape was reconstructed at different deformation states. Several wing shapes were also reconstructed using a precise visual measurement system. Comparing the FBG sensing method with this visual measurement system demonstrated the effectiveness of the FBG method proposed here. Its maximum error was
- Published
- 2019