Use of a stroboholographic method for vibration studies
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:
- May 1976
- Bibcode:
- 1976PrPro.......95E
- Keywords:
-
- Holographic Interferometry;
- Stress Distribution;
- Stroboscopes;
- Structural Vibration;
- Turbine Blades;
- Vibration Measurement;
- Amplitude Distribution Analysis;
- Computer Techniques;
- Gas Turbine Engines;
- Least Squares Method;
- Linear Equations;
- Piezoelectricity;
- Real Time Operation;
- Resonant Frequencies;
- Wave Front Reconstruction;
- Instrumentation and Photography