| Autor: |
Bolu, G., Gachagan, A., Pierce, G., Harvey, G., Choong, L. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2/22/2010, Vol. 1211 Issue 1, p1654-1661, 8p, 5 Black and White Photographs, 1 Diagram, 1 Chart, 2 Graphs |
| Abstrakt: |
High-power acoustic excitation of components during a thermosonic (or Sonic IR) inspection may degrade the structural integrity of the component by propagating existing cracks. Process Compensated Resonance Testing (PCRT) technology can be used to detect changes in material properties by comparing a components resonant spectra to a reference spectra at regular intervals after systematic exposure to high-power excitation associated with thermosonic inspection. The objective of this work is to determine whether a typical thermosonic inspection degrades the structural integrity of a turbine blade. In this work, the resonant spectra of six cracked and six uncracked turbine blades are captured before and after a series of thermosonic inspections. Next, these spectra are analyzed using proprietary software for changes in resonant behavior. Results from this work indicate no change in blade resonant behavior for a typical thermosonic inspection. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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