Measurement and modelling of the reflection coefficient of an Acoustic Black Hole termination
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چکیده
منابع مشابه
Measurement and modelling of the reflection coefficient of an Acoustic Black Hole termination
The flexural waves propagating in a beam can be efficiently absorbed if one extremity is tapered with a power law profile and covered by a thin layer of additional damping material. Such a termination induces the so-called ”acoustic black hole effect” (ABH): if the thickness decreases locally, flexural waves slow down and the amplitude of the displacement field increases, leading to efficient e...
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چکیده ندارد.
Modal Overlap Factor of a beam with an acoustic black hole termination
Acoustic Black Hole (ABH) effect is a passive vibration reduction technique which takes advantage of properties of wave propagation in thin structures of varying thickness. A practical implementation of ABH on a uniform beam consists in an extremity whose thickness follows a power-law profile covered by a very thin layer of additional damping material. A modal analysis based on a High Resolutio...
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ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2015
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2015.03.043