scholarly journals Acoustic vibration problem for dissipative fluids

2018 ◽  
Vol 88 (315) ◽  
pp. 45-71
Author(s):  
Felipe Lepe ◽  
Salim Meddahi ◽  
David Mora ◽  
Rodolfo Rodríguez
Keyword(s):  
Acoustic Vibration ◽  
Vibration Problem ◽  
Dissipative Fluids

scholarly journals Approximation of a structural acoustic vibration problem by hexahedral finite elements

2006 ◽  
Vol 26 (2) ◽  
pp. 391-421 ◽  
Author(s):  
A. Bermúdez ◽  
P. Gamallo ◽  
M. R. Nogueiras ◽  
R. Rodríguez
Keyword(s):  
Finite Elements ◽  
Acoustic Vibration ◽  
Vibration Problem

scholarly journals A virtual element method for the acoustic vibration problem

2016 ◽  
Vol 136 (3) ◽  
pp. 725-763 ◽  
Author(s):  
Lourenço Beirão da Veiga ◽  
David Mora ◽  
Gonzalo Rivera ◽  
Rodolfo Rodríguez
Keyword(s):  
Acoustic Vibration ◽  
Virtual Element Method ◽  
Vibration Problem ◽  
Virtual Element ◽  
Element Method

scholarly journals Tunable characteristics of low-frequency bandgaps in two-dimensional multivibrator phononic crystal plates under prestrain

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hai-Fei Zhu ◽  
Xiao-Wei Sun ◽  
Ting Song ◽  
Xiao-Dong Wen ◽  
Xi-Xuan Liu ◽  
...  
Keyword(s):  
Phononic Crystal ◽  
Real Life ◽  
Low Frequency ◽  
Acoustic Vibration ◽  
Crystal Plate ◽  
Frequency Noise ◽  
Two Dimensional ◽  
The Matrix ◽  
Noise Frequency ◽  
Realtime Control

AbstractIn view of the influence of variability of low-frequency noise frequency on noise prevention in real life, we present a novel two-dimensional tunable phononic crystal plate which is consisted of lead columns deposited in a silicone rubber plate with periodic holes and calculate its bandgap characteristics by finite element method. The low-frequency bandgap mechanism of the designed model is discussed simultaneously. Accordingly, the influence of geometric parameters of the phononic crystal plate on the bandgap characteristics is analyzed and the bandgap adjustability under prestretch strain is further studied. Results show that the new designed phononic crystal plate has lower bandgap starting frequency and wider bandwidth than the traditional single-sided structure, which is due to the coupling between the resonance mode of the scatterer and the long traveling wave in the matrix with the introduction of periodic holes. Applying prestretch strain to the matrix can realize active realtime control of low-frequency bandgap under slight deformation and broaden the low-frequency bandgap, which can be explained as the multiple bands tend to be flattened due to the localization degree of unit cell vibration increases with the rise of prestrain. The presented structure improves the realtime adjustability of sound isolation and vibration reduction frequency for phononic crystal in complex acoustic vibration environments.

An equivalent NVH model of vehicle door seal strip and its application in door vibration problem

2021 ◽  
Vol 179 ◽  
pp. 108063
Author(s):  
Erli Xia ◽  
Ziming Chen ◽  
Zhigang Xue ◽  
Sawei Qiu ◽  
Congchang Xu ◽  
...  
Keyword(s):  
Vibration Problem

Acoustic-vibration analysis of the gear-bearing-housing coupled system

2021 ◽  
Vol 178 ◽  
pp. 108024
Author(s):  
Jiyuan Han ◽  
Yang Liu ◽  
Shuanghe Yu ◽  
Siyao Zhao ◽  
Hui Ma
Keyword(s):  
Vibration Analysis ◽  
Coupled System ◽  
Acoustic Vibration

Nanoparticle–Fluid Interactions at Ultrahigh Acoustic Vibration Frequencies Studied by Femtosecond Time-Resolved Microscopy

ACS Nano ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 1833-1840
Author(s):  
Kuai Yu ◽  
Yang Yang ◽  
Junzhong Wang ◽  
Gregory V. Hartland ◽  
Guo Ping Wang
Keyword(s):  
Acoustic Vibration ◽  
Vibration Frequencies ◽  
Time Resolved ◽  
Fluid Interactions
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