Self-excited oscillations of a circular disk rotating in air
Abstract
Self-excited oscillations are often observed in a circular disk when it is rotated in air. Theoretical as well as experimental studies are conducted on these oscillations. As a preparatory study, free vibrations of the disk are discussed theoretically without taking into account the effect of air. Then, utilizing the result of this preparatory study, and taking into account the effect of air, free vibrations of the disk are studied. It is shown that self-excited oscillations can occur at a rotating speed higher than a certain value in the form of a backward traveling wave. Experiments confirm the theoretical analysis.
- Publication:
-
JSME International Journal
- Pub Date:
- September 1992
- Bibcode:
- 1992JSMEJ..35..347Y
- Keywords:
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- Free Vibration;
- Interactional Aerodynamics;
- Rotating Disks;
- Self Excitation;
- Circular Plates;
- Traveling Waves;
- Structural Mechanics