METHOD FOR MITIGATING STRESS WAVES RESULTING FROM A BLAST OR IMPACT

A protective device and method of design to protect against blast and impact for use in any application in which a delicate target has to be protected. The protective device for mitigating a blast or impact frequency having a first layer having a first acoustic impedance and a second layer having a...

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Bibliographische Detailangaben
Hauptverfasser:	Thouless, Michael, Arruda, Ellen M, Waas, Anthony M, Rahimzadeh, Tanaz
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AMMUNITION ARMOUR ARMOURED OR ARMED VEHICLES ARMOURED TURRETS BLASTING HEATING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A protective device and method of design to protect against blast and impact for use in any application in which a delicate target has to be protected. The protective device for mitigating a blast or impact frequency having 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 and the second layer is joined to the first layer. The first layer and the second layer are chosen collectively to tune the blast or impact to one or more specific tuned frequencies. In some embodiments, a third layer having a critical damping frequency that matches at least one of the one or more specific tuned frequencies is provided and the third layer is joined to the second layer.