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Wednesday, July 10 • 11:50 - 12:10
THE MEASUREMENT OF ACOUSTIC ABSORPTION PROPERTIES OF BASALT FIBER

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The sound absorption properties of basalt fiber were measured by impedance tube. The sound absorption performance of basalt fiber at different bulk density was measured and compared respectively. It was found that with the increase of bulk density, the low frequency sound absorption performance of the material was getting better and better. Meanwhile, the sound absorption properties of the same thickness of glass fiber were measured, and compared with the sound absorption property of basalt fiber close to bulk density, it was found that its performance is close. While the basalt fiber made by the anechoic chamber wedge shape, made of the same size and fibre glass wedge were measured the sound absorption performance of the standing wave tube, the result is very close to the same. This proves that the basalt fiber for construction of anechoic chamber sound material wedge is feasible.

Moderators
FA

francesco Asdrubali

Full Professor, Università Roma Tre - Department of Engineering
TD

Thomas Dupont

Associate Professor, École de Technologie Supérieure (ÉTS)
PL

Philippe Leclaire

Prof., ISAT - University of Burgundy
avatar for Raymond Panneton

Raymond Panneton

Ing., Ph.D., GAUS, Université de Sherbrooke
Raymond Panneton is a professor-researcher in the Department of Mechanical Engineering at the Université de Sherbrooke since 1998. His research program focuses on the modeling, characterization and optimization of porous acoustic media. More specifically, he explores the relationships... Read More →

Authors

Wednesday July 10, 2019 11:50 - 12:10 EDT
St-Laurent 5
  T08 Mat. for noise & vibr. cntrl., SS01 Pasv snd absorb & insul mtrl