MODELLING THE EFFECT OF VIBRATION ON THE SOUND ABSORPTION PERFORMANCE OF GREEN SOUND ABSORBER USING WAVE PROPAGATION TECHNIQUE
Natural fibers (NF) have been known to have good acoustic performance and can potentially substitute the classical synthetic absorber materials which give negative impact for the environment. Commonly, the sound absorption model available for porous acoustic panel ignores the vibration of the p...
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| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Universiti Teknikal Malaysia Melaka
2012
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/8893/2/MODELLING_THE_EFFECT_OF_VIBRATION_ON_THE_SOUND.pdf http://eprints.utem.edu.my/id/eprint/8893/ http://icei2012.utem.edu.my |
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| Institution: | Universiti Teknikal Malaysia Melaka |
| Language: | English |
| Summary: | Natural fibers (NF) have been known to have
good acoustic performance and can potentially substitute
the classical synthetic absorber materials which give
negative impact for the environment. Commonly, the sound
absorption model available for porous acoustic panel
ignores the vibration of the panel. In this paper, the effect of
the vibration on the sound absorption of the NF panel
backed with a solid panel and air layer is modeled using
wave propagation method. It is shown that the model can be
adjusted into the case of an absorber panel backed with air
layer and rigid surface by increasing the impedance of the
solid panel. |
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