✦ LIBER ✦
AN EXPERIMENTAL INVESTIGATION ON THE ACOUSTIC EXCITATION OF A THIN PLATE BY LOW-SPEED JETS
✍ Scribed by J.H. CHOU; C.H. DING; S.C. WU
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 313 KB
- Volume
- 246
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
Experiments were conducted to investigate the acoustic forcing of a thin aluminum plate by low-speed jets. The Mach numbers of the jets were 0)1 and 0)2. The results indicate that the structural response is due to two causes. One is the low-frequency forced excitation of the thin plate due to the leapfrogging interaction of ring vortices. The other one is the natural frequency response at a higher frequency due to turbulent #uctuations in the jet. The former is directionally dependent while the latter is both directionally and position independent.
2001 Academic Press