Mechanisms of active noise control by vibration sources

It is shown how vibration control sources can be effectively used in systems designed to actively control structural radiation. Two physical mechanisms are employed: a reduction in structural modal amplitude and/or an alteration in the relative amplitudes and phases of the structured modes. It is no...

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Bibliographic Details
Published inJournal of sound and vibration Vol. 147; no. 3; pp. 519 - 525
Main Authors Snyder, S.D., Hansen, C.H.
Format Journal Article
LanguageEnglish
Published London Elsevier Ltd 22.06.1991
Elsevier
Subjects
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Noise: its effects and control
Physics
Wave transmission
Vibration control
Acoustic enclosure
Active system
Noise reduction
Acoustic radiation
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Summary:It is shown how vibration control sources can be effectively used in systems designed to actively control structural radiation. Two physical mechanisms are employed: a reduction in structural modal amplitude and/or an alteration in the relative amplitudes and phases of the structured modes. It is noted that the importance of these two mechanisms is a function of various structural/acoustic system parameters. (K.K.)
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-460X
1095-8568
DOI:10.1016/0022-460X(91)90499-A