Nonlinear ultrasonic spectroscopy and acoustic emission in SHM of aircrafts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00386163" target="_blank" >RIV/61388998:_____/12:00386163 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Nonlinear ultrasonic spectroscopy and acoustic emission in SHM of aircrafts
Original language description
Example of a complex Structural Health Monitoring (SHM) system design for some critical parts of an aircraft is discussed in this paper. The system was tested during fatigue loading of those parts. The Nonlinear Elastic Wave Spectroscopy (NEWS) pseudo-tomography procedure, based on Time Reversal Mirrors (TRM) with Excitation Symmetry Analysis Method (ESAM) enabled zone-location of small defects, not detectable by other classical non-destructive (NDT) procedures. Damaged zone location results corresponded with acoustic emission (AE) sources localized within the loading periods by using artificial neural networks with so called signal arrival time profiles. Results reflect good robustness of both techniques, and support their helpfulness in SHM of aircraft.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Project
<a href="/en/project/FR-TI1%2F274" target="_blank" >FR-TI1/274: *Evaluation of SHM methods and its integration into aircraft maintenance system</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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