Stroboholographic method used for studying vibrations
Abstract
The method of stroboholography can be used to accurately determine the distribution of the amplitudes of the vibratory displacements of turbine blades. One strobohologram can provide data on amplitude distributions for all vibration modes in the frequency range studied. The method consists of strobing the reference and object beams at definite moments of time after obtaining a hologram of a motionless object by the real-time method.
- Publication:
-
Problemy Prochnosti
- Pub Date:
- February 1977
- Bibcode:
- 1977PrPro...8...95E
- Keywords:
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- Engine Tests;
- Gas Turbine Engines;
- Holographic Interferometry;
- Stroboscopes;
- Turbine Blades;
- Vibration Measurement;
- Amplitude Distribution Analysis;
- Computer Techniques;
- Least Squares Method;
- Linear Equations;
- Piezoelectricity;
- Real Time Operation;
- Resonant Frequencies;
- Stress Distribution;
- Structural Vibration;
- Wave Front Reconstruction;
- Instrumentation and Photography