Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7152144 | Applied Acoustics | 2018 | 6 Pages |
Abstract
A new approach to the design of sound-absorbing materials was experimentally investigated. Improved acoustic properties were obtained in a wider frequency range through the impregnation of nanoporous grit into foam pores. Using this approach, the range of efficiency of these materials was extended from high frequencies of 2.0-6.3â¯kHz to a lower band of 0.5-1.6â¯kHz. The absorption ratio was increased by 60-100%, and the transmission loss was increased by 20-22â¯dB.
Keywords
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
S.P. Bardakhanov, C.-M. Lee, V.N. Goverdovskiy, A.P. Zavjalov, K.V. Zobov, M. Chen, Z.H. Xu, I.K. Chakin, D.Yu. Trufanov,