TY - GEN
T1 - Improving the attenuation of micro-perforated panels by partitioning the connecting air space
AU - Liu, J.
AU - Herrin, D. W.
PY - 2008
Y1 - 2008
N2 - The sound attenuation performance of a micro-perforated panel (MPP) with adjoining air space is demonstrated for a plenum. The study compares the sound field inside of a plenum for two cases. In the first case, the plenum was treated with an MPP and adjoining air cavity without any partitioning. For the second case, the adjoining air cavity is partitioned into a number of subcavities. The resulting sound pressure fields indicate that partitioning the adjoining air cavity increases the overall attenuation due to the MPP by approximately 4 dB. The explanation for this phenomenon was investigated by measuring the sound pressure level in a plane anterior to the MPP.
AB - The sound attenuation performance of a micro-perforated panel (MPP) with adjoining air space is demonstrated for a plenum. The study compares the sound field inside of a plenum for two cases. In the first case, the plenum was treated with an MPP and adjoining air cavity without any partitioning. For the second case, the adjoining air cavity is partitioned into a number of subcavities. The resulting sound pressure fields indicate that partitioning the adjoining air cavity increases the overall attenuation due to the MPP by approximately 4 dB. The explanation for this phenomenon was investigated by measuring the sound pressure level in a plane anterior to the MPP.
UR - https://www.scopus.com/pages/publications/84870035484
UR - https://www.scopus.com/pages/publications/84870035484#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:84870035484
SN - 9781605605401
T3 - Institute of Noise Control Engineering of the USA - 23rd National Conference on Noise Control Engineering, NOISE-CON 08 and Sound Quality Symposium, SQS 08
SP - 763
EP - 770
BT - Institute of Noise Control Engineering of the USA - 23rd National Conference on Noise Control Engineering, NOISE-CON 08 and Sound Quality Symposium, SQS 08
T2 - 23rd National Conference on Noise Control Engineering, NOISE-CON 2008 and 3rd Sound Quality Symposium, SQS 2008
Y2 - 28 July 2008 through 31 July 2008
ER -