TY - GEN
T1 - Membrane-type acoustic resonator for sound control applications
AU - Yu, Xiang
AU - Cui, Fangsen
AU - Lu, Zhenbo
AU - Tan, Sze Tiong
AU - Yao, Kui
PY - 2016
Y1 - 2016
N2 - Acoustic resonators are widely used to control sound field inside an enclosure or attenuate a tone from the incident noise in a duct. Traditional resonator designs having fixed geometries and components are only effective at a single narrow frequency band. One shortcoming is that they can hardly provide the tuning ability needed for sound control at varying frequencies, e.g., to deal with blower or engine exhaust noise with changing fan or engine speed. In this study, the use of membrane-type acoustic resonator is investigated, focusing on the fundamental effect of introducing membrane structural resonances into the structure-acoustic coupling. The possible tuning of the resonator for a controllable acoustic performance is also explored. For illustration purpose, an active membrane making use of a pre-stretched dielectric elastomer is incorporated into the resonator design. Results show that the proposed resonator can be tuned with an altering applied voltage for different attenuation characteristics, which may inspire the future development of sound control applications such as novel noise reduction windows or acoustic silencers.
AB - Acoustic resonators are widely used to control sound field inside an enclosure or attenuate a tone from the incident noise in a duct. Traditional resonator designs having fixed geometries and components are only effective at a single narrow frequency band. One shortcoming is that they can hardly provide the tuning ability needed for sound control at varying frequencies, e.g., to deal with blower or engine exhaust noise with changing fan or engine speed. In this study, the use of membrane-type acoustic resonator is investigated, focusing on the fundamental effect of introducing membrane structural resonances into the structure-acoustic coupling. The possible tuning of the resonator for a controllable acoustic performance is also explored. For illustration purpose, an active membrane making use of a pre-stretched dielectric elastomer is incorporated into the resonator design. Results show that the proposed resonator can be tuned with an altering applied voltage for different attenuation characteristics, which may inspire the future development of sound control applications such as novel noise reduction windows or acoustic silencers.
UR - http://www.scopus.com/inward/record.url?scp=84987888642&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:84987888642
T3 - ICSV 2016 - 23rd International Congress on Sound and Vibration: From Ancient to Modern Acoustics
BT - ICSV 2016 - 23rd International Congress on Sound and Vibration
PB - International Institute of Acoustics and Vibrations
T2 - 23rd International Congress on Sound and Vibration, ICSV 2016
Y2 - 10 July 2016 through 14 July 2016
ER -