Resonant oscillations of an elastic membrane on the bottom of a tank containing a heavy liquid |
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Authors: | V V Alekseev D A Indeitsev Yu A Mochalova |
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Institution: | (1) Institute of Mechanical-Engineering Problems, Russian Academy of Sciences, 199178 St. Petersburg, Russia |
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Abstract: | A study is made of the resonant oscillation modes in a three-dimensional channel filled by a heavy incompressible liquid,
with a free surface at the top and an elastic membrane on the bottom. It is shown that for definite relations between the
parameters of the channel and the inclusion there is a discrete spectrum, which extends only up to the waveguide cutoff frequency,
in addition to the continuous spectrum of oscillation frequencies. The oscillation modes of the liquid have a localized character
in the region of the inclusion.
Zh. Tekh. Fiz. 69, 37–42 (August 1999) |
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