Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection
A recent elastic metamaterial study found that resonators that “clamp” a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study investigates whether the concept can...
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doaj-95d73bbe1afa4f6b98f64a3fdd40bdfb2020-11-24T21:52:49ZengMDPI AGApplied Sciences2076-34172019-01-019225710.3390/app9020257app9020257Clamping Resonators for Low-Frequency S0 Lamb Wave ReflectionChristopher Hakoda0Cliff J. Lissenden1Parisa Shokouhi2Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, PA, USADepartment of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, PA, USADepartment of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, PA, USAA recent elastic metamaterial study found that resonators that “clamp” a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study investigates whether the concept can be extended to S0 Lamb wave modes by designing resonators that can prohibit the propagation of S0 Lamb wave modes in a 1-mm aluminum plate waveguide at 50 kHz. The frequency-matched resonators did not reduce the transmitted signal, leading to the conclusion that the design concept of frequency-matched resonators is not always effective. On the other hand, the resonators designed to clamp the upper surface of the plate were very effective and reduced the transmitted signal by approximately 75%.http://www.mdpi.com/2076-3417/9/2/257metamaterialresonatorlow-frequencylamb wave |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Christopher Hakoda Cliff J. Lissenden Parisa Shokouhi |
spellingShingle |
Christopher Hakoda Cliff J. Lissenden Parisa Shokouhi Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection Applied Sciences metamaterial resonator low-frequency lamb wave |
author_facet |
Christopher Hakoda Cliff J. Lissenden Parisa Shokouhi |
author_sort |
Christopher Hakoda |
title |
Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection |
title_short |
Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection |
title_full |
Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection |
title_fullStr |
Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection |
title_full_unstemmed |
Clamping Resonators for Low-Frequency S0 Lamb Wave Reflection |
title_sort |
clamping resonators for low-frequency s0 lamb wave reflection |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2019-01-01 |
description |
A recent elastic metamaterial study found that resonators that “clamp” a plate waveguide can be used to create a frequency stop-band gap. The result was that the resonator array can prohibit the propagation of an A0 Lamb wave mode. This study investigates whether the concept can be extended to S0 Lamb wave modes by designing resonators that can prohibit the propagation of S0 Lamb wave modes in a 1-mm aluminum plate waveguide at 50 kHz. The frequency-matched resonators did not reduce the transmitted signal, leading to the conclusion that the design concept of frequency-matched resonators is not always effective. On the other hand, the resonators designed to clamp the upper surface of the plate were very effective and reduced the transmitted signal by approximately 75%. |
topic |
metamaterial resonator low-frequency lamb wave |
url |
http://www.mdpi.com/2076-3417/9/2/257 |
work_keys_str_mv |
AT christopherhakoda clampingresonatorsforlowfrequencys0lambwavereflection AT cliffjlissenden clampingresonatorsforlowfrequencys0lambwavereflection AT parisashokouhi clampingresonatorsforlowfrequencys0lambwavereflection |
_version_ |
1725874735571533824 |