Abstract
In this paper, we describe a method for solving the problem for calculating the acoustic radiation of a deformable solid oscillating in a compressible fluid by using the mode analysis procedures found in mechanoacoustic systems. The method is based on an approximate representation of the acoustic radiation loss function and modifications of the Lanczos method. This allows constructing an efficient computational algorithm for finding sound-emitting forms of resonant oscillations and the corresponding complex values of eigenfrequencies. The developed method was tested using a model problem as an example.
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ACKNOWLEDGMENTS
The authors are grateful to P.L. Korotin, the head of the Center for Hydroacoustics, IAP RAS for discussions on the study results.
Funding
This work was supported by the Program of Fundamental Scientific Research of the state academies of sciences, project no. 0035-2019-0018.
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Translated by A. Ivanov
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Salin, M.B., Sokov, E.M. & Suvorov, A.S. Method of Mode Analysis for Mechanoacoustic Systems. Mech. Solids 55, 1318–1327 (2020). https://doi.org/10.3103/S0025654420080257
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DOI: https://doi.org/10.3103/S0025654420080257