Damping Characteristics of a Cantilever Plate Using Permanent Magnetic Constrained Layer Damping Strip Treatment

Ming Li; Hui Ming Zheng

doi:10.4028/www.scientific.net/AMR.450-451.466

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 450-451Damping Characteristics of a Cantilever Plate...

Damping Characteristics of a Cantilever Plate Using Permanent Magnetic Constrained Layer Damping Strip Treatment

Abstract:

Significant improvement of damping characteristics can be achieved by using the new class of magnetic constrained layer damping treatment (MCLD). This paper presents the damping properties of the first and second torsional mode for a five-layer cantilever rectangular plate treated with partial MCLD. The Rayleigh-Ritz method and Hamilton’s principle are employed in the analysis. We have chosen both single and segmented patches with different sizes. It can be observed that for the two modes single-patched MCLD treatment induces less improvement of damping characteristics especially for the short patch. The effects of calculation of parameters like placement strategies of discrete patches, the length of patches are analyzed and discussed. The results obtained from analytical show that the optimum location of the patch, for the torsional mode, is at edge of the plate. Favorable comparisons with the conventional passive constrained layer damping treatment (PCLD) on various special cases of the problem are obtained. The results demonstrate MCLD treatment still improvements over PCLD in damping structural vibrations.

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Periodical:

Advanced Materials Research (Volumes 450-451)

Pages:

466-471

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.450-451.466

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Online since:

January 2012

Authors:

Ming Li, Hui Ming Zheng

Keywords:

Cantilever Plate, Permanent Magnet, Vibration Control

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