Maximum Damping of the Lowest Room Eigenfrequency by a Monopole

Maximum Damping of the Lowest Room Eigenfrequency by a Monopole

In this paper, we consider the problem of sound absorption by a monopole in a rectangular room with absolutely rigid walls. The absorption efficiency is characterized by the damping coefficients of free oscillations of the “monopole-room” system. The impedance of the monopole is found, at which the...

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Main Authors: Mameshina Darya, Kanev Nikolay
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00026.pdf
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spelling doaj-12c35f1d32124886b87c054be8ec6db82021-08-05T13:51:15ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013200002610.1051/matecconf/202032000026matecconf_aso2020_00026Maximum Damping of the Lowest Room Eigenfrequency by a MonopoleMameshina Darya0Kanev NikolayBMSTU, Power Engineering DepartmentIn this paper, we consider the problem of sound absorption by a monopole in a rectangular room with absolutely rigid walls. The absorption efficiency is characterized by the damping coefficients of free oscillations of the “monopole-room” system. The impedance of the monopole is found, at which the damping coefficient of the resonance of the system with the lowest natural frequency is maximum. The monopole with this impedance can be realized using an active control method that allows the required impedance to be achieved over a wide frequency band.https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00026.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Mameshina Darya
Kanev Nikolay
spellingShingle Mameshina Darya
Kanev Nikolay
Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
MATEC Web of Conferences
author_facet Mameshina Darya
Kanev Nikolay
author_sort Mameshina Darya
title Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
title_short Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
title_full Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
title_fullStr Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
title_full_unstemmed Maximum Damping of the Lowest Room Eigenfrequency by a Monopole
title_sort maximum damping of the lowest room eigenfrequency by a monopole
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2020-01-01
description In this paper, we consider the problem of sound absorption by a monopole in a rectangular room with absolutely rigid walls. The absorption efficiency is characterized by the damping coefficients of free oscillations of the “monopole-room” system. The impedance of the monopole is found, at which the damping coefficient of the resonance of the system with the lowest natural frequency is maximum. The monopole with this impedance can be realized using an active control method that allows the required impedance to be achieved over a wide frequency band.
url https://www.matec-conferences.org/articles/matecconf/pdf/2020/16/matecconf_aso2020_00026.pdf
work_keys_str_mv AT mameshinadarya maximumdampingofthelowestroomeigenfrequencybyamonopole
AT kanevnikolay maximumdampingofthelowestroomeigenfrequencybyamonopole
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