Green materials are becoming a valid alternative to traditional synthetic materials for sound absorption. In this paper are reported the measurement of the acoustic properties of the broom plants. The broom plants grow up on hills and mountains. The materials were cut and then were shredded. Test specimens were made of suitable thickness and the acoustic characteristics were measured. The absorption coefficeint of samples of the materials with different thicknesses was measured in the frequency range from 200 Hz to 2000 Hz with a tube of ”Kundt”; the flow resistance was also measured
Acoustic properties of broom fibres
IANNACE, Gino;NARDINI, Sergio
2016
Abstract
Green materials are becoming a valid alternative to traditional synthetic materials for sound absorption. In this paper are reported the measurement of the acoustic properties of the broom plants. The broom plants grow up on hills and mountains. The materials were cut and then were shredded. Test specimens were made of suitable thickness and the acoustic characteristics were measured. The absorption coefficeint of samples of the materials with different thicknesses was measured in the frequency range from 200 Hz to 2000 Hz with a tube of ”Kundt”; the flow resistance was also measuredFile in questo prodotto:
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