✦ LIBER ✦

VISCOUS HYDROELASTIC VIBRATIONS IN A CYLINDRICAL CONTAINER WITH AN ELASTIC BOTTOM

✍ Scribed by H.F. BAUER; M. CHIBA

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 443 KB
Volume: 247
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.2001.3633

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✦ Synopsis

The coupled motion of a viscous liquid in a cylindrical container with an elastic bottom is treated. The liquid exhibits a free surface with surface tension. The hydroelastic frequencies and decay magnitudes are determined for the lower angular-and radial modes, for which the in#uences of the various parameters are investigated. A new phenomenon was detected, showing that for low liquid height ratio an aperiodic range appears, in which the viscous liquid is not able to oscillate. This range decreases with growing membrane tension and increasing mode number. In addition, it was found that higher liquid modes experience larger damping and disappear from the motion as time goes on.

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