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Broadband passive distributed tuned vibration and acoustic absorber for modally dense structures

Image Number 9 for United States Patent #8025124.

A passive distributed vibration absorber that utilizes multiple discrete mass elements and a viscoelastic layer and that effectively attenuates vibration in modally dense structures excited by a broadband input noise excitation. and is tunable to multiple natural frequencies in such modally dense vibrating structures including low frequencies.

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