Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/9958

Title: Damping of flexural vibrations in rectangular plates using the acoustic black hole effect
Authors: O'Boy, D.J.
Krylov, Victor V.
Kralovic, V.
Keywords: Acoustic black hole effect
Vibration damping
Rectangular plates
Numerical model
Issue Date: 2010
Publisher: © Elsevier Ltd.
Citation: O'BOY, D.J., KRYLOV, V.V. and KRALOVIC, V., 2010. Damping of flexural vibrations in rectangular plates using the acoustic black hole effect. Journal of Sound and Vibration, 329 (22), pp. 4672 - 4688
Abstract: The reduction of flexural vibration in plate structures has been investigated using the recently reported acoustic black hole effect for flexural wave reflection in plates with the local thickness varying according to h(x) = epsilon x(m) and m >= 2. Since sharp edges of such plates (wedges) are always truncated before x=0, the real reflection coefficients are relatively high, therefore the application of a small amount of damping is required to achieve large reductions in vibration amplitude. This paper presents a numerical model of a plate incorporating an acoustic black hole wedge, with predictions for vibration amplitudes. These are compared to equivalent experimental measurements for a range of applied damping layers. It is concluded that the above-mentioned power-law wedges can be used as effective vibration dampers in plate structures over a wide frequency range of interest. (C) 2010 Elsevier Ltd. All rights reserved.
Description: This article was published in the Journal of Sound and Vibration [© Elsevier Ltd.] and the definitive version is available at: http://dx.doi.org/10.1016/j.jsv.2010.05.019
Version: Submitted for publication
DOI: 10.1016/j.jsv.2010.05.019
URI: https://dspace.lboro.ac.uk/2134/9958
Publisher Link: http://dx.doi.org/10.1016/j.jsv.2010.05.019
ISSN: 0022-460X
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

Files associated with this item:

File Description SizeFormat
oboy3preprint.pdf781.97 kBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.