The progressive wave model is applied to calculate transmission loss (TL) of triple layer panels. Theoretical values are then compared with impedance progressive model and experimental results. The triple layer panel comprises two solid layers with a middle layer of air or liquid. An impedance tube is employed to measure the TL values experimentally. The comparison of the two analytical models shows that the results of both models are relatively close. However, the progressive wave model leads to slightly larger values for a wide range of frequencies. Also, for the case of an air middle layer, a shift of the resonances to higher frequencies is observed in the results of the progressive wave model. Computational results also demonstrate that applying a liquid middle layer (replacing air) significantly improves the performance of the acoustic panel particularly at frequencies below 4000 rad/s (640 Hz). Shifting resonance frequencies to higher frequencies is another advantage of incorporating the liquid layer. Good agreement was also found between theoretical and experimental results.
Accepté le :
Publié le :
N. Mohammadi 1 ; M.J. Mahjoob 1
@article{CRMECA_2009__337_4_198_0,
author = {N. Mohammadi and M.J. Mahjoob},
title = {Transmission loss of multilayer panels containing a fluid using progressive wave model: {Comparison} with impedance progressive model and experiments},
journal = {Comptes Rendus. M\'ecanique},
pages = {198--207},
publisher = {Elsevier},
volume = {337},
number = {4},
year = {2009},
doi = {10.1016/j.crme.2009.05.001},
language = {en},
}
TY - JOUR AU - N. Mohammadi AU - M.J. Mahjoob TI - Transmission loss of multilayer panels containing a fluid using progressive wave model: Comparison with impedance progressive model and experiments JO - Comptes Rendus. Mécanique PY - 2009 SP - 198 EP - 207 VL - 337 IS - 4 PB - Elsevier DO - 10.1016/j.crme.2009.05.001 LA - en ID - CRMECA_2009__337_4_198_0 ER -
%0 Journal Article %A N. Mohammadi %A M.J. Mahjoob %T Transmission loss of multilayer panels containing a fluid using progressive wave model: Comparison with impedance progressive model and experiments %J Comptes Rendus. Mécanique %D 2009 %P 198-207 %V 337 %N 4 %I Elsevier %R 10.1016/j.crme.2009.05.001 %G en %F CRMECA_2009__337_4_198_0
N. Mohammadi; M.J. Mahjoob. Transmission loss of multilayer panels containing a fluid using progressive wave model: Comparison with impedance progressive model and experiments. Comptes Rendus. Mécanique, Volume 337 (2009) no. 4, pp. 198-207. doi : 10.1016/j.crme.2009.05.001. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2009.05.001/
[1] Sound transmission through multiple structures containing flexible blankets, Journal of the Acoustical Society of America, Volume 21 (1949) no. 4, pp. 419-428
[2] Acoustical properties of homogeneous, isotropic rigid tiles and flexible blankets, Journal of the Acoustical Society of America, Volume 19 (1947) no. 4, pp. 556-568
[3] Optimization of the mass distribution and the air spaces in multiple-element soundproofing structures, Journal of the Acoustical Society of America, Volume 35 (1963) no. 7, pp. 1023-1029
[4] Transmission loss of multiple panels in a random incidence field, Journal of the Acoustical Society of America, Volume 43 (1968) no. 6, pp. 1432-1435
[5] Transmission of reverberant sound through double walls, Journal of the Acoustical Society of America, Volume 22 (1950) no. 2, pp. 270-279
[6] The transmission loss of double panels, Journal of Sound and Vibration, Volume 6 (1967) no. 3, pp. 324-334
[7] Sound insulation provided by single and double panel walls—a comparison of analytical solutions versus experimental results, Applied Acoustics, Volume 65 (2004), pp. 15-29
[8] An investigation into the acoustic insulation of triple-layered panels containing Newtonian fluids: Theory and experiment, Applied Acoustics, Volume 70 (2009) no. 1, pp. 165-171
[9] Sound and Sources of Sound, Ellis Horwood Limited, England, 1983
[10] O. Olivieri, J.S. Bolton, T. Yoo, Measurement of transmission loss of materials using a standing wave tube, in: Proceedings NOISE-CON 2006, Honolulu, Hawaii, USA, 2006
[11] A transfer-matrix approach for estimating the characteristic impedance and wave numbers of limp and rigid porous materials, Journal of the Acoustical Society of America, Volume 107 (2000) no. 3, pp. 1131-1152
[12] Effect of circumferential edge constraint on the acoustical properties of glass fiber materials, Journal of the Acoustical Society of America, Volume 110 (2001) no. 6, pp. 2902-2916
[13] Prediction of transmission loss in mufflers by the finite-element method, Journal of the Acoustical Society of America, Volume 57 (1975) no. 1, pp. 144-148
[14] Theory of a two source-location method for direct experimental evaluation of the four-pole parameters of an aeroacoustic element, Journal of Sound and Vibration, Volume 141 (1990) no. 2, pp. 323-333
[15] Transmission loss measurement of consolidated granular media (L), Journal of the Acoustical Society of America, Volume 117 (2005) no. 5, pp. 2716-2719
Cité par Sources :
Commentaires - Politique