| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Locally Resonant Gaps of Phononic Beams Induced by Periodic Arrays of Resonant Shunts |
| CHEN Sheng-Bing**, WEN Ji-Hong, WANG Gang, HAN Xiao-Yun, WEN Xi-Sen
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Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073
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| Cite this article: |
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CHEN Sheng-Bing, WEN Ji-Hong, WANG Gang et al 2011 Chin. Phys. Lett. 28 094301 |
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Abstract Periodic arrays of shunted piezoelectric patches are employed to control the propagation of elastic waves in phononic beams. Each piezo-patch is connected to a single resistance-inductance-capacitance shunting circuit. Therefore, the resonances of the shunting circuits will produce locally resonant gaps in the phononic beam. However, the existence of locally resonant gaps induced by resonant shunts has not been clearly proved by experiment so far. In this work, the locally resonant gap in a piezo-shunted phononic beam is investigated theoretically and verified by experiment. The results prove that resonances of shunting circuits can produce locally resonant gaps in phononic beams.
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| Keywords:
43.20.+g
43.40.+s
02.60.-x
77.65.-g
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Received: 18 February 2011
Published: 30 August 2011
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