Low‐frequency vibrational modes of fluid‐loaded thin spherical shells. II.L.H
作者:
Roger Green,
H. Hackman,
D. H. Trivett,
L. Flax,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1984)
卷期:
Volume 76,
issue S1
页码: 65-65
ISSN:0001-4966
年代: 1984
DOI:10.1121/1.2021963
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Previously, we presented [L. H. Greenet al., J. Acoust. Soc. Am. Suppl. 175,S77 (1984)] an analysis of the low‐frequency high‐Qresonances of thin spherical shells. The previous investigation centered on providing a physical explanation for the strong coupling of the lowest frequency resonances to the fluid medium. We extend the analysis to more completely explore the effects of fluid loading on the high‐Qresonances. In particular, as the phase velocity of the low speed (first mode) wave on a thin spherical shell approaches the speed of sound in the fluid, the dispersion curve for the elastic wave appears to merge with that of the “creeping wave.” A physical explanation of this effect will be provided along with numerical results based on the linear theory of elasticity.
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