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Finite Element Based Model of Fiber-optic Strain Sensor Mounted on a Semi-monocoque StructureFiber-optic strain sensing (FOSS) provides an opportunity for additional awareness and can enable other mitigations such as flutter suppression or gust load alleviation but requires an accurate computational model as part of a design process that integrates structures and controls. A modeling approach for fiber-optic strain sensors has been developed using a shell
element formulation in a detailed finite element model. The new FOSS modeling approach is designed to better scale to more complex realistic structures and fiber layouts than previous approaches. The modeling method was applied to the X-56A vehicle and results were compared to experimental static ground-test data. Additionally, the experimental sensor noise of these
fiber optic sensors was assessed for the correlations in time and correlations along the fiber. The noise does show significant correlations both in time and along the fibers. These correlations of the noise should also be considered in modeling and assessing algorithms that will use FOSS.
Document ID
20230016477
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Jeffrey Ouellette
(Langley Research Center Hampton, Virginia, United States)
Alexander Chin
(Langley Research Center Hampton, Virginia, United States)
Date Acquired
November 13, 2023
Subject Category
Aeronautics (General)
Meeting Information
Meeting: AIAA SciTech Forum
Location: Orlando, FL
Country: US
Start Date: January 8, 2024
End Date: January 12, 2024
Sponsors: American Institute of Aeronautics and Astronautics
Funding Number(s)
WBS: 981698
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Technical Review
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