Journal
PHYSICS LETTERS A
Volume 382, Issue 5, Pages 241-247Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2017.11.023
Keywords
Transverse wave; Low-frequency gap; Ultra-wide bandwidth; Inertial amplification
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Funding
- National Natural Science Foundation of China [11635004]
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Low-frequency transverse wave propagation plays a significant role in the out-of-plane vibration control. To efficiently attenuate the propagation of transverse waves at low-frequency range, this letter proposed a new type phononic beam by attaching inertial amplification mechanisms on it. The wave propagation of the beam with enhanced effective inertia is analyzed using the transfer matrix method. It is demonstrated that the low-frequency gap within inertial amplification effects can possess much wider bandwidth than using the local resonance method, thus is more suitable for designing applications to suppress transverse wave propagation. (C) 2017 Elsevier B.V. All rights reserved.
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