Process for constructing a structural element that absorbs airborne sound
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United States of America Patent
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Jul 5, 1988
Grant Date -
N/A
app pub date -
May 13, 1987
filing date -
May 16, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The process makes it possible to determine for sound-absorbing structural elements made of a compact or foamed plastic with cup-shaped protuberances, the thickness and area size of the resonance surfaces that is required for an optimal sound aborption, as a function of the height of the protuberances and the endeavored resonance frequency. The use of this process also makes it possible to adapt the frequency response curve of the sound absorption coefficient of the structural element to the frequency response curve of the sound level of a noise source.
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