2021
DOI: 10.1016/j.apacoust.2021.108257
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An acoustic structure design supported by shear thickening fluid for sound absorption

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Cited by 3 publications
(7 citation statements)
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“…The composite structure filled with 58.8 vol% STFs has the lowest SAC within the region of 950-1600 Hz. The frequency at the maximal SAC value decreases with the increase of fluid viscosity, which is consistent with the literature [34]. As shown in the figure 5(b), the STL of the structure filled with PEG400 is comparable to that of the structure without fluids.…”
Section: Sac and Stl Of Compositessupporting
confidence: 90%
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“…The composite structure filled with 58.8 vol% STFs has the lowest SAC within the region of 950-1600 Hz. The frequency at the maximal SAC value decreases with the increase of fluid viscosity, which is consistent with the literature [34]. As shown in the figure 5(b), the STL of the structure filled with PEG400 is comparable to that of the structure without fluids.…”
Section: Sac and Stl Of Compositessupporting
confidence: 90%
“…The SAC was calculated from the surface impedance obtained by measuring the specimens. In the measurement setup, a loudspeaker that produced noise with its amplifier located at one end of the tube and a specimen at the other end [34], as shown in the figure 1(a). The normal incidence STL of specimens was determined by utilising a fourmicrophone impedance tube according to the ASTM E 2611 [35].…”
Section: Methodsmentioning
confidence: 99%
“…The upward motion of piston is restricted by an endstop within the gas-cavity. The maximum gas volume when the piston is at the bottom-end of the cavity is 2.00 dm 3 . When piston is at the top-end of the cylinder, the gas volume is 0.80 dm 3 .…”
Section: Gas Resonator 41 Construction Of the Gas Resonatormentioning
confidence: 99%
“…The maximum gas volume when the piston is at the bottom-end of the cavity is 2.00 dm 3 . When piston is at the top-end of the cylinder, the gas volume is 0.80 dm 3 . Hence, the gas-cavity has an operational volumetric range of 1.20 dm 3 .…”
Section: Gas Resonator 41 Construction Of the Gas Resonatormentioning
confidence: 99%
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