Blast/impact frequency tuning and mitigation

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United States of America Patent

PATENT NO 9958238
SERIAL NO

15036293

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Abstract

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A protective device and method of design to protect against multiple blast and impact events for use in any application in which a delicate target has to be protected. The protective device for mitigating the effects of blast or impact employs a first layer having a first acoustic impedance and a second layer having a second acoustic impedance. The second acoustic impedance is different than the first acoustic impedance. The second layer is proximate to the first layer. The first layer and the second layer are chosen collectively to tune the stress waves from the blast or impact events to one or more specific tuned frequencies. A third layer of a visco-elastic material is employed having a critical damping frequency that matches one or more specific tuned frequencies to dissipate the stress waves of the blast and impact event. The third layer is proximate to the second layer.

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Patent Owner(s)

Patent OwnerAddress
THE REGENTS OF THE UNIVERSITY OF MICHIGAN1600 HURON PARKWAY 2ND FLOOR ANN ARBOR MI 48109-2590

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arruda, Ellen M Ann Arbor, US 18 146
Rahimzadeh, Tanaz Ann Arbor, US 4 2
Thouless, Michael Ann Arbor, US 6 35
Waas, Anthony M Ann Arbor, US 10 32

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