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Dynamic Deformation Reconstruction of Variable Section WING with Fiber Bragg Grating Sensors
Zhen Fu1, Yong Zhao2, Hong Bao3
1Key Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi'an 710071, China.
Sensors (Basel, Switzerland)
|August 2, 2019
Summary
This study presents a novel algorithm for real-time monitoring of variable-section wing deformation. The method accurately reconstructs wing structure deformation using inverse finite element analysis and fuzzy networks.
Area of Science:
- Structural Mechanics
- Aerospace Engineering
- Computational Mechanics
Background:
- Monitoring wing deformation is crucial for aircraft safety and performance.
- Existing methods struggle with real-time, high-precision deformation sensing of variable-section structures.
Purpose of the Study:
- To develop a dynamic reconstruction algorithm for real-time monitoring of variable-section wing deformation.
- To improve the accuracy of deformation sensing by addressing sensor installation and model errors.
Main Methods:
- Established a deformation reconstruction model for variable-section beam elements using Timoshenko beam theory and inverse finite element method.
- Developed a solidified fuzzy network, optimized with support vector machines, to correct real-time strain data for sensor installation and un-modeled dynamic errors.
- Validated the algorithm through loading deformation experiments.
Main Results:
- The proposed algorithm successfully reconstructed the deformation of a variable-section wing structure.
- High precision in real-time deformation monitoring was achieved.
Conclusions:
- The inverse finite element method combined with a fuzzy network offers a robust solution for real-time variable-section wing deformation monitoring.
- The developed approach enhances the accuracy and reliability of structural health monitoring in aerospace applications.
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