Loading Condition Estimation Using Long-Period Fiber Grating Array
| Autor: | Renato Luiz Faraco-Filho, Leonardo de Mello Honório, Andres P. Lopez-Barbero, Felipe Oliveira Barino, Alexandre Bessa dos Santos, Vinicius N. H. Silva, Deivid Campos |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Optical fiber Acoustics 010401 analytical chemistry Work (physics) Bending Long-period fiber grating 01 natural sciences Durability 0104 chemical sciences law.invention Position (vector) law Electrical and Electronic Engineering Instrumentation Intensity (heat transfer) Beam (structure) |
| Zdroj: | IEEE Sensors Journal. 21:6202-6208 |
| ISSN: | 2379-9153 1530-437X |
| Popis: | To ensure the safety and durability of structures, the constant monitoring of their structural health has been used by engineers to manage these structures. Optical fiber sensors have the advantage of long transducer-to-processing distances, the capacity to work in harsh environments, immunity to electromagnetic noise, and reliability. Therefore, optical fiber sensors are great candidates to monitor structures in-service. Here, we propose the use of a long-period fiber grating (LPG) array to monitor the loading condition of a structure. The identification method was tested in a simply-supported beam model and the estimated loading conditions were compared to the loading conditions applied to the beam. By analyzing different combinations of force intensity and position along the beam length, the results showed the force position could be estimated with 0.901% accuracy and force intensity with 2.51% accuracy using a four-LPG strain sensor array. |
| Databáze: | OpenAIRE |
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