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- W193957029 abstract "A helmholtz resonator has been widely used for the purpose of suppressing the low frequency noises propagated from various heat and fluid machineries. However, the conventional resonator has demerits that the effective absorption bandwidth is narrow and the absorption performance is not so outstanding in the only limited configurations of neck and cavity as well. In order to overcome these problems, in this paper, a resonator with perforated neck is proposed. The absorption performances of the resonator are measured by two-microphone method and estimated by transfer matrix method. The measured values of normal absorption coefficients agree well with the estimated values. By introducing the perforated plates at the neck of a resonator, it is shown that the absorption performance have been significantly improved." @default.
- W193957029 created "2016-06-24" @default.
- W193957029 date "2008-01-20" @default.
- W193957029 modified "2023-09-24" @default.
- W193957029 title "A Study on the Acoustic Absorption Performance of a Helmholtz Resonator" @default.
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- W193957029 doi "https://doi.org/10.5050/ksnvn.2008.18.1.071" @default.
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