Feedforward control of double-panel casing for active reduction of device noise

The active casing approach is a technique to reduce noise emission of devices and machinery by controlling vibrations of their casings. This method was successfully validated by the authors for a single-panel casing in previous publications. However, if even higher noise reduction is required, a ded...

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Main Authors: Stanislaw Wrona, Marek Pawelczyk
Format: Article
Language:English
Published: SAGE Publishing 2019-06-01
Series:Journal of Low Frequency Noise, Vibration and Active Control
Online Access:https://doi.org/10.1177/1461348418811429
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author Stanislaw Wrona
Marek Pawelczyk
author_facet Stanislaw Wrona
Marek Pawelczyk
author_sort Stanislaw Wrona
collection DOAJ
description The active casing approach is a technique to reduce noise emission of devices and machinery by controlling vibrations of their casings. This method was successfully validated by the authors for a single-panel casing in previous publications. However, if even higher noise reduction is required, a dedicated double-panel structure can be employed. In this paper, the sound insulation efficiency of a double-panel active casing is evaluated and compared with a single-panel structure by performing a series of laboratory experiments. The least mean squares algorithm is used to adaptively update control filter parameters. A low-frequency noise in the range up to 500 Hz is considered. Advantages and limits of the proposed approach are pointed out and discussed, and conclusions for future research are given.
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spelling doaj.art-0baf9103cadb4dd9b84cc59f170813192022-12-22T01:38:17ZengSAGE PublishingJournal of Low Frequency Noise, Vibration and Active Control1461-34842048-40462019-06-013810.1177/1461348418811429Feedforward control of double-panel casing for active reduction of device noiseStanislaw WronaMarek PawelczykThe active casing approach is a technique to reduce noise emission of devices and machinery by controlling vibrations of their casings. This method was successfully validated by the authors for a single-panel casing in previous publications. However, if even higher noise reduction is required, a dedicated double-panel structure can be employed. In this paper, the sound insulation efficiency of a double-panel active casing is evaluated and compared with a single-panel structure by performing a series of laboratory experiments. The least mean squares algorithm is used to adaptively update control filter parameters. A low-frequency noise in the range up to 500 Hz is considered. Advantages and limits of the proposed approach are pointed out and discussed, and conclusions for future research are given.https://doi.org/10.1177/1461348418811429
spellingShingle Stanislaw Wrona
Marek Pawelczyk
Feedforward control of double-panel casing for active reduction of device noise
Journal of Low Frequency Noise, Vibration and Active Control
title Feedforward control of double-panel casing for active reduction of device noise
title_full Feedforward control of double-panel casing for active reduction of device noise
title_fullStr Feedforward control of double-panel casing for active reduction of device noise
title_full_unstemmed Feedforward control of double-panel casing for active reduction of device noise
title_short Feedforward control of double-panel casing for active reduction of device noise
title_sort feedforward control of double panel casing for active reduction of device noise
url https://doi.org/10.1177/1461348418811429
work_keys_str_mv AT stanislawwrona feedforwardcontrolofdoublepanelcasingforactivereductionofdevicenoise
AT marekpawelczyk feedforwardcontrolofdoublepanelcasingforactivereductionofdevicenoise