The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate

This study presents an analysis of the effect of the concentrated mass on the acoustic power and the resonant frequencies of a vibrating thin circular plate. The fluid-structure interactions and the acoustic wave radiation effect have been included. The eigenfunction expansion has been used to expre...

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Main Authors: Wojciech P. Rdzanek, Krzysztof Szemela
Format: Article
Language:English
Published: Institute of Fundamental Technological Research 2022-12-01
Series:Archives of Acoustics
Subjects:
Online Access:https://journals.pan.pl/Content/125258/PDF/aoa.2022.142895.pdf
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author Wojciech P. Rdzanek
Krzysztof Szemela
author_facet Wojciech P. Rdzanek
Krzysztof Szemela
author_sort Wojciech P. Rdzanek
collection DOAJ
description This study presents an analysis of the effect of the concentrated mass on the acoustic power and the resonant frequencies of a vibrating thin circular plate. The fluid-structure interactions and the acoustic wave radiation effect have been included. The eigenfunction expansion has been used to express the transverse displacement of the plate. The appropriate number of modes is determined approximately to achieve physically correct results. Then highly accurate results are obtained numerically. The radiated acoustic power has been used to determine the resonant frequencies. The introducing of the concentrated mass is justified by modelling the added mass of the moving component of the exciter.
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spelling doaj.art-ec51660cf2ef4906a4ace15aa2b133b32023-03-16T12:09:51ZengInstitute of Fundamental Technological ResearchArchives of Acoustics0137-50752300-262X2022-12-01vol. 47No 4529538https://doi.org/10.24425/aoa.2022.142895The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plateWojciech P. Rdzanek0Krzysztof Szemela1University of Rzeszow, College of Natural Sciences, Institute of Physics, Rzeszow, PolandUniversity of Rzeszow, College of Natural Sciences, Institute of Physics, Rzeszow, PolandThis study presents an analysis of the effect of the concentrated mass on the acoustic power and the resonant frequencies of a vibrating thin circular plate. The fluid-structure interactions and the acoustic wave radiation effect have been included. The eigenfunction expansion has been used to express the transverse displacement of the plate. The appropriate number of modes is determined approximately to achieve physically correct results. Then highly accurate results are obtained numerically. The radiated acoustic power has been used to determine the resonant frequencies. The introducing of the concentrated mass is justified by modelling the added mass of the moving component of the exciter.https://journals.pan.pl/Content/125258/PDF/aoa.2022.142895.pdfthin plateconcentrated massfluid-structure interactionsresonant frequenciesmodal expansionacoustic power
spellingShingle Wojciech P. Rdzanek
Krzysztof Szemela
The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
Archives of Acoustics
thin plate
concentrated mass
fluid-structure interactions
resonant frequencies
modal expansion
acoustic power
title The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
title_full The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
title_fullStr The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
title_full_unstemmed The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
title_short The effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
title_sort effect of a concentrated mass on the acoustic power and the resonant frequencies of a circular plate
topic thin plate
concentrated mass
fluid-structure interactions
resonant frequencies
modal expansion
acoustic power
url https://journals.pan.pl/Content/125258/PDF/aoa.2022.142895.pdf
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