SHOCK ATTENUATION DEVICE WITH STACKED NONVISCOELASTIC LAYERS,申请号US201514918677-传众专利搜索

SHOCK ATTENUATION DEVICE WITH STACKED NONVISCOELASTIC LAYERS

申请公布号：US2017115108(A1)

申请号：US201514918677

申请日期：2015.10.21

申请公布日期：2017.04.27

申请人：

Raytheon Company

发明人：Kerns Keith A.;Lee Wayne Y.;Spilotro John J.

分类号：F42C15/34

主分类号：F42C15/34

地址：Waltham MA US

摘要：A shock attenuation device is used to reduce the effect of a blast shock by both disrupting the propagation of the shock and by spreading, deflecting, and/or redirecting the shock. The device includes multiple layers of different materials, having different shock transmission impedances, stacked in a direction in which the blast shock travels through the device. At least one of the layers includes a material that crumples in response to the shock, undergoing an inelastic deformation in response to the shock. Also, at least one of the layers includes a material that has a directional shock transmission impedance that provides different shock transmission impedance within different directions within the material. The directional shock transmission material may be oriented such that the preferred direction of shock transmission within the material is oriented away from the direction of in which the multiple layers of material are stacked.

主权项：1. A shock attenuation device comprising: a pair of stacked layers of nonviscoelastic shock-attenuation material in contact with one another; wherein the stacked layers include at least one layer of crushable material; wherein the layers have different shock transmission impedances; and wherein the layers have different directional shock transmission characteristics.