| Autor: |
Luke Pollock, Harald Kleine, Andrew Neely, Graham Wild |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 12, Pp 101106-101120 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2024.3430219 |
| Popis: |
Optical fiber Bragg grating (FBG) technology offers many advantages over conventional electrical sensors for the measurement of fluid-structure interaction (FSI). In this work, FBGs are used to measure the dynamic response of 3 mm, 2 mm, and 1 mm thick aluminum cantilever panels under the influence of Mach 2 reflected shock impingement in the UNSW Canberra supersonic blowdown facility. Results compared during start-up and steady-state with high-speed digital video schlieren and laser Doppler vibrometry indicate that FBGs can successfully capture the temporal and spectral characteristics of high-speed FSI. The torsional mode of the 1 mm plate is spectrally captured by the FBG with only a single sensor. Furthermore, it is shown that error in the FBG signal is comparable to that of a laser Doppler vibrometer. The greatest challenge remains the efficient decoupling of thermal effects. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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