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contributor authorChen, J. S.
contributor authorHuang, Y. J.
date accessioned2017-05-09T01:34:45Z
date available2017-05-09T01:34:45Z
date issued2016
identifier issn1048-9002
identifier othervib_138_04_041008.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/162925
description abstractA new sandwich beam with embedded multiresonators is presented. Two continuum Timoshenko beam models are adopted for modeling sandwich beams. Numerical results show that multiple resonators can lead to multiple resonanttype bandgaps with remarkable wave attenuation. The effective mass is found to become negative for frequencies in the bandgaps where the wave is greatly attenuated. With two identical resonators connected in parallel, only one single bandgap can be found. If two resonators with equal masses and springs are connected in series, the central frequency of the second bandgap is approximated twice of the central frequency of the first gap. For the beam with seriesconnected resonators, a simple two degreesoffreedom system is proposed and used for predicting the initial frequencies of the bandgaps while for the beam with resonators in parallel, two separate single degreeoffreedom systems are introduced.
publisherThe American Society of Mechanical Engineers (ASME)
titleWave Propagation in Sandwich Structures With Multiresonators
typeJournal Paper
journal volume138
journal issue4
journal titleJournal of Vibration and Acoustics
identifier doi10.1115/1.4033197
journal fristpage41009
journal lastpage41009
identifier eissn1528-8927
treeJournal of Vibration and Acoustics:;2016:;volume( 138 ):;issue: 004
contenttypeFulltext


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