Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31318
Title: Dynamic vibration absorbers for vibration control within a frequency band
Authors: Yang, C
Li, D
Cheng, L 
Issue Date: 2011
Publisher: Academic Press
Source: Journal of sound and vibration, 2011, v. 330, no. 8, p. 1582-1598 How to cite?
Journal: Journal of sound and vibration 
Abstract: The use of dynamic vibration absorbers to control the vibration of a structure in both narrow and broadbands is discussed in this paper. As a benchmark problem, a plate incorporating multiple vibration absorbers is formulated, leading to an analytical solution when the number of absorbers yields one. Using this analytical solution, control mechanisms of the vibration absorber in different frequency bandwidths are studied; the coupling properties due to the introduction of the absorber into the host structure are analyzed; and the control performance of the absorber in different control bandwidths is examined with respect to its damping and location. It is found that the interaction between the plate and the absorber by means of the reaction force from the absorber plays a dominant role in a narrow band control, while in a relatively broadband control the dissipation by the absorber damping governs the control performance. When control bandwidth further enlarges, the optimal locations of the absorbers are not only affected by the targeted mode, but also by the other plate modes. These locations need to be determined after establishing a trade-off between the targeted mode and other modes involved in the coupling. Finally, numerical findings are assessed based on a simply-supported plate and a fair agreement between the predicted and measured results is obtained.
URI: http://hdl.handle.net/10397/31318
ISSN: 0022-460X
EISSN: 1095-8568
DOI: 10.1016/j.jsv.2010.10.018
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