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18 April 2022 Fiber Bragg grating array-based shape sensing for structural health monitoring of cylindrical marine structures
Xiaofeng Gao, Chuanyi Tao, Yueqing Zhu, Jingke Li, Yiran Wu, Pinsheng Huang, Cheng Feng, Hao Wang, Wei Wang
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Proceedings Volume 12046, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2022; 1204617 (2022) https://doi.org/10.1117/12.2612251
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
A method using fiber Bragg grating (FBG) array-based shape sensing is proposed for structure health monitoring of cylindrical marine structures in this paper. Because of the characteristics of FBG, any strain applied on the FBG is encoded as a wavelength shift of the light reflected by FBG. FBG sensors, with flexibility and small size, are bonded on the surface of the cylindrical shell structure to measure the strain of each fiber Bragg grating on the same certain points. And then we analyze the relationship of each parameter between FBG sensors and cylindrical structure. Experimental results prove that it is feasible for this method using FBG array-based shape sensing to monitor the deformation of the cylindrical structure. This method can be widely adopted in structure health monitoring of curved structures due to high precision, simple operation and low cost.
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Xiaofeng Gao, Chuanyi Tao, Yueqing Zhu, Jingke Li, Yiran Wu, Pinsheng Huang, Cheng Feng, Hao Wang, and Wei Wang "Fiber Bragg grating array-based shape sensing for structural health monitoring of cylindrical marine structures", Proc. SPIE 12046, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2022, 1204617 (18 April 2022); https://doi.org/10.1117/12.2612251
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KEYWORDS
Fiber Bragg gratings
Sensors
Structural health monitoring
Optical sensing
Optical fibers
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