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TECHNICAL PAPERS

Coupled Helmholtz Resonators for Acoustic Attenuation

[+] Author and Article Information
Steve Griffin, Steve Huybrechts

Spacecraft Component Technologies Branch, Air Force Research Laboratory, 3550 Aberdeen Avenue, Kirtland AFB, NM 87117

Steven A. Lane

Jackson and Tull Engineering, 1900 Randolph Road, SE, Suite H, Albuquerque, NM 87106e-mail: steven.lane@kirtland.af.mil

J. Vib. Acoust 123(1), 11-17 (Aug 01, 2000) (7 pages) doi:10.1115/1.1320812 History: Received August 01, 1999; Revised August 01, 2000
Copyright © 2001 by ASME
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References

Figures

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A single Helmholtz resonator and a representative plot of the transmission loss
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Representative plot of the transmission loss of two dissimilar resonators
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Representative plot of the transmission loss of two similar resonators
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Illustration of a simple, coupled resonator system
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A schematic diagram for modeling a coupled resonator system mounted on a one-dimensional acoustic duct
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Simulation results for two equivalent resonators showing coupled and uncoupled systems
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Simulation results illustrating increased bandwidth of attenuation exhibited by the coupled resonator system
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Simulation results illustrating adaptability of the transmission loss by varying the piston stiffness, k3
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Diagram of the experimental setup used to measure the transmission loss of an actual coupled resonator system
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Predicted and experimentally measured transmission loss for the coupled resonator system
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Predicted and experimentally measured transmission loss for the coupled resonator system with additional mass attached to the membrane

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