Article ID Journal Published Year Pages File Type
7152144 Applied Acoustics 2018 6 Pages PDF
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 2.0-6.3 kHz to a lower band of 0.5-1.6 kHz. The absorption ratio was increased by 60-100%, and the transmission loss was increased by 20-22 dB.
Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
Authors
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