2019
DOI: 10.1115/1.4045456
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Acoustic-Structure Interaction in an Adaptive Helmholtz Resonator by Compliance and Constraint

Abstract: The acoustic energy attenuation capabilities of traditional Helmholtz resonators are enhanced by various methods, including by coupled resonators, absorbing materials, or replacement of rigid walls with flexible structures. Drawing from these concepts to envision a new platform of adaptive Helmholtz resonator, this research studies an adaptive acoustic resonator with an internal compliant structural member. The interaction between the structure and acoustic domain is controlled by compression constraint. By ap… Show more

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Cited by 5 publications
(3 citation statements)
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“…Two common approaches used for tuning the resonant frequencies are incorporating multiple Helmholtz resonators in parallel and series, 45,47 and using a flexible plate at the end of Helmholtz cavity. [48][49][50][51] The former, however, is not applicable in miniature designs because it requires more space. Thus, in the current study, we use our method for modeling the fluid-structure interaction to design a miniature Helmholtz resonator with a flexible end-plate, applicable in small volume spaces.…”
Section: Choice Of Penalty Factor and Formulationmentioning
confidence: 99%
See 1 more Smart Citation
“…Two common approaches used for tuning the resonant frequencies are incorporating multiple Helmholtz resonators in parallel and series, 45,47 and using a flexible plate at the end of Helmholtz cavity. [48][49][50][51] The former, however, is not applicable in miniature designs because it requires more space. Thus, in the current study, we use our method for modeling the fluid-structure interaction to design a miniature Helmholtz resonator with a flexible end-plate, applicable in small volume spaces.…”
Section: Choice Of Penalty Factor and Formulationmentioning
confidence: 99%
“…Helmholtz resonator attenuates the acoustic energy over a certain frequency band that corresponds to its resonant frequencies. Two common approaches used for tuning the resonant frequencies are incorporating multiple Helmholtz resonators in parallel and series, 45,47 and using a flexible plate at the end of Helmholtz cavity 48‐51 . The former, however, is not applicable in miniature designs because it requires more space.…”
Section: Numerical Experimentsmentioning
confidence: 99%
“…In addition, Cui and Harne [22] leveraged a flexible structural member in an adaptive HR to control structural-acoustic coupling via controlled elastic buckling phenomena. While previous studies have illustrated the potential of HR with a compliant membrane for broadband absorption of sound in the condition of low pressure amplitude, i.e., linear regime [3,20,21], the assessment of amplitude-dependent dynamic response of compliant-walled HR is lacking.…”
Section: Introductionmentioning
confidence: 99%