Flexural wave propagation in beams with periodically attached vibration absorbers: Band-gap behavior and band formation mechanisms

2013 ◽  
Vol 332 (4) ◽  
pp. 867-893 ◽  
Author(s):  
Yong Xiao ◽  
Jihong Wen ◽  
Dianlong Yu ◽  
Xisen Wen
Keyword(s):  
Wave Propagation ◽  
Band Gap ◽  
Flexural Wave ◽  
Formation Mechanisms ◽  
Vibration Absorbers ◽  
Band Formation ◽  
Flexural Wave Propagation

scholarly journals Low-frequency broadband vibration attenuation of sandwich plate-type metastructures with periodic thin-wall tube cores

2021 ◽  
pp. 146134842110355
Author(s):  
Huan Zi ◽  
Yinggang Li
Keyword(s):  
Wave Propagation ◽  
Band Gap ◽  
Sandwich Plate ◽  
Low Frequency ◽  
Flexural Wave ◽  
Wave Band ◽  
Thin Wall ◽  
Vibration Attenuation ◽  
Flexural Wave Propagation ◽  
Plate Type

Sandwich structures are widely applied in modern industry such as aerospace, automobile as well as marine structures. However, the vibroacoustic properties of sandwich structures are adversely influenced by low effective mass. In this study, the flexural wave propagation characteristics and vibration mitigation performances of the periodic sandwich plate-type metastructures are investigated. The proposed sandwich plate-type metastructures are constituted of a sandwich plate with periodic thin-wall circular tube cores and periodically attached local stepped resonators. A finite element method combining Solid-Shell coupling numerical method and Bloch theory is presented to calculate the dispersion relations and the displacement fields of the eigenmodes of the infinite periodic sandwich plate-type metastructures. In addition, the acceleration frequency responses and vibration attenuation performances of finite periodic sandwich plate-type metastructures are numerically investigated and compared with the experimental measurements. Furthermore, the influences of geometric parameters on flexural wave band gaps are conducted. Results show that the sandwich plate-type metastructures can yield a low-frequency broad flexural wave band gap, in which the flexural wave propagation is conspicuously suppressed, resulting in significant flexural vibration attenuation. The flexural wave band gap and vibration attenuation performances can be effectively manipulated by designing geometric parameters of the sandwich plate-type metastructures.

scholarly journals Flexural Wave Propagation in Beam with Dispersion

1984 ◽  
Vol 27 (231) ◽  
pp. 2008-2015 ◽  
Author(s):  
Kenzou NONAMI ◽  
Noboru TOMINARI ◽  
Takayoshi TOTANI
Keyword(s):  
Wave Propagation ◽  
Flexural Wave ◽  
Flexural Wave Propagation

scholarly journals Modeling of Flexural Wave Propagation in a Plate with Contacting Interfaces

2010 ◽  
Vol 4 (8) ◽  
pp. 1186-1197 ◽  
Author(s):  
Shiro BIWA ◽  
Satoshi KISHIWADA ◽  
Claude INSERRA ◽  
Eiji MATSUMOTO
Keyword(s):  
Wave Propagation ◽  
Flexural Wave ◽  
Flexural Wave Propagation
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