IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0636726
(2009-12-12)
|
등록번호 |
US-8448559
(2013-05-28)
|
발명자
/ 주소 |
- Hunn, David L.
- Lee, Sang J.
- Copp, James C.
|
출원인 / 주소 |
- Lockheed Martin Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
8 |
초록
▼
A vehicle hull includes a personnel compartment and an apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment. The apparatus is configured to redirect at least a portion of a blast wave resulting from an explosive blast. The apparatus defines a cavi
A vehicle hull includes a personnel compartment and an apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment. The apparatus is configured to redirect at least a portion of a blast wave resulting from an explosive blast. The apparatus defines a cavity in which a blast attenuator is disposed. The blast attenuator comprises a core defining a plurality of interconnecting pores defining a pore volume of the core, a shear thickening fluid disposed in the pore volume of the core, and an enclosure in which the core and the shear thickening fluid are disposed.
대표청구항
▼
1. A vehicle hull, comprising: a personnel compartment; andan apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment, the apparatus comprising: a central portion including a stiffening element and defining a radiused exterior surface, a central axis
1. A vehicle hull, comprising: a personnel compartment; andan apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment, the apparatus comprising: a central portion including a stiffening element and defining a radiused exterior surface, a central axis of and bisecting the central portion being substantially in a center of a bottom of the vehicle hull;a plurality of sides extending directly from opposing sides of the central portion to the personnel compartment; anda first transverse member extending between the plurality of sides above the radiused exterior surface;wherein the central portion and the plurality of sides are configured to redirect at least a portion of a blast wave resulting from an explosive blast. 2. The vehicle hull, according to claim 1, wherein the apparatus further comprises: a second transverse member extending between the plurality of sides, such that the first transverse member, the second transverse member, and the plurality of sides define a cavity; anda blast attenuator disposed in the cavity, the blast attenuator comprising: a core defining a plurality of interconnecting pores defining a pore volume of the core;a shear thickening fluid disposed in the pore volume of the core; andan enclosure in which the core and the shear thickening fluid are disposed. 3. The vehicle hull, according to claim 1, wherein the stiffening element extends between an outer skin and an inner skin of the central portion. 4. The vehicle hull, according to claim 1, wherein the apparatus is attached to or integral with the personnel compartment. 5. A vehicle hull, comprising: a personnel compartment; andan apparatus for inhibiting effects of an explosive blast operably associated with the personnel compartment, the apparatus configured to redirect at least a portion of a blast wave resulting from an explosive blast and defining a cavity in which a blast attenuator is disposed, the blast attenuator comprising: a core defining a plurality of interconnecting pores defining a pore volume of the core;a shear thickening fluid disposed in the pore volume of the core; andan enclosure in which the core and the shear thickening fluid are disposed. 6. The vehicle hull of claim 5, wherein the apparatus further comprises: a central portion including a stiffening element and defining a radiused exterior surface; anda plurality of sides extending from the central portion to the personnel compartment;wherein the central portion and the plurality of sides are configured to redirect at least a portion of a blast wave resulting from an explosive blast. 7. The vehicle hull of claim 6, wherein the apparatus further comprises: first and second transverse members extending between the plurality of sides;wherein the first transverse member, the second transverse member, and the plurality of sides define a cavity in which the blast attenuator is disposed. 8. The vehicle hull of claim 5, further comprising a crushable portion disposed in the cavity. 9. The vehicle hull of claim 6, wherein at least one of the plurality of sides forms an angle within a range of about 25 degrees to about 60 degrees with respect to a central axis bisecting the central portion. 10. The vehicle hull of claim 6, wherein the central portion exhibits a radius of at least 15 centimeters. 11. The vehicle hull of claim 6, wherein the central portion comprises: an outer skin; andan inner skin;wherein the stiffening element extends between the outer skin and the inner skin. 12. The vehicle hull of claim 11, wherein the stiffening element is a truss. 13. The vehicle hull of claim 6, wherein the central portion is formed using a superplastic forming process. 14. The vehicle hull of claim 5, wherein the vehicle hull forms a portion of a vehicle. 15. The vehicle hull of claim 5, wherein the apparatus comprises a material exhibiting a modulus of elasticity greater than about ten million pounds per square inch. 16. The vehicle hull of claim 5, wherein the core exhibits a compressive strength of at least about 400 kilopascals and a density of at least about 120 kilograms per cubic meter. 17. The vehicle hull of claim 5, wherein the core comprises an open celled metallic foam. 18. The vehicle hull of claim 5, wherein the shear thickening fluid comprises: ethylene glycol; anda plurality of silica particles disposed in the ethylene glycol. 19. The vehicle hull of claim 18, wherein the plurality of silica particles exhibit diameters of at least 200 nanometers. 20. The vehicle hull of claim 18, wherein the shear thickening fluid exhibits a volume fraction of the plurality of silica particles of at least about 0.4. 21. The vehicle hull of claim 5, wherein the shear thickening fluid comprises: one of a dispersion of cornstarch in water, a dispersion of a clay in water, a dispersion of titanium dioxide in water, and a dispersion of silica in water.
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