Aeolian tones of a plate in a channel |
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Authors: | S V Sukhinin S P Bardakhanov |
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Institution: | (1) Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090 Novosibirsk |
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Abstract: | The conditions of the onset of aeroacoustic resonance phenomena near a plate in a gas flow in a rectangular channel are studied
theoretically and experimentally in a two-dimensional formulation. The eigenfrequency as a function of the plate's chord and
its position in the channel, the shape of the eigenfunctions, and the effect of the Mach number of the basic gas flow versus
the eigenfrequencies and eigenfunctions and the mechanism of self-excited oscillations are determined. A mathematical model
by means of which the dependence of the resonance phenomena on the geometrical parameters of the structure were performed
is proposed and substantiated.
Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 39, No. 2, pp. 69–77, March–April, 1998. |
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