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    • 8. 发明申请
    • BLAST COMPRESSION WAVE ABSORBING DEVICE
    • BLAST压缩波吸收装置
    • US20060027419A1
    • 2006-02-09
    • US10349141
    • 2003-01-23
    • Vladimir PonomarevIryna Ponomaryova
    • Vladimir PonomarevIryna Ponomaryova
    • B64F1/26
    • B64D37/32B64D2037/325F42D5/045
    • A blast compression wave absorbing device comprises a container filled with gas or air under pressure below ambient pressure (under vacuum). The device is positioned close to the facility or structure being protected, in atmosphere or under water. When a blast compression wave reaches the device, in accordance with various embodiments of the invention, the container collapses, ruptures, or its interior is being connected to the environment through rupturable diaphragm or fast-actuating valve. The ambient air starts to fill the internals of the container generating a negative pressure wave, which interferes with blast compression wave and produces a resulting pressure wave with reduced pressure and impulse affecting the facility or structure to be protected. The device can be used in a counter-terrorism operations, to protect high-risk facilities (nuclear and military installations, petrochemical plants, embassies), submerged structures, or to protect personnel in tunnels and bunkers from shock waves of fuel-air explosives.
    • 喷射压缩波吸收装置包括在低于环境压力(真空)的压力下填充有气体或空气的容器。 该设备靠近在大气中或水下受保护的设施或结构。 当爆炸压缩波到达装置时,根据本发明的各种实施例,容器崩溃,破裂或其内部通过可破裂膜片或快速致动阀连接到环境。 环境空气开始填充容器的内部,产生负压波,其干扰鼓风压缩波,并且产生产生的压力波,其中减压和冲击影响待保护的设施或结构。 该设备可用于反恐行动,保护高风险设施(核能和军事设施,石油化工厂,大使馆),淹没结构,或保护隧道和沙坑中的人员免受燃料空气爆炸物的冲击波。
    • 9. 发明授权
    • Baffle for a liquid tank
    • 挡板为液体罐
    • US06220472B1
    • 2001-04-24
    • US09457265
    • 1999-12-09
    • David TownsendSerguei T ZavtrakRognvald S McEwen
    • David TownsendSerguei T ZavtrakRognvald S McEwen
    • B60P300
    • B64D37/08B64D37/32B64D2037/325
    • A baffle (1) for reducing hydraulic ram pressure in a liquid in a tank (5,9) in which it is located resulting from impact of a projectile on an external surface (6,10) of the tank, includes at least two outer walls (2) spaced apart to define therebetween at least one cavity (3) and a compressible gas or gaseous mixture at reduced, atmospheric or enhanced pressure contained in the cavity (3). The baffle outer walls (2) are sufficiently strong to withstand the pressure of the gas or gaseous material contained in the cavity (3) are sufficiently strong to resist the hydrostatic pressure of liquid in a tank (5,9), when the baffle (1) is located in the liquid in the tank (5,9), and are spaced apart by an amount sufficient to provide the cavity with a volume sufficient to allow a shock wave or waves in the liquid resulting from compression of the liquid by impact of a projectile on the tank external surface (6) to be reduced by expansion of the compressed liquid into the cavity volume. The gas or gaseous mixture has a density sufficiently different from the density of the liquid to provide substantially total reflection within the baffle (1) of the shock wave or waves impinging on the baffle.
    • 一种用于减少其中由喷射器撞击在罐体的外表面(6,10)上而定位的罐(5,9)中的液体中的液压柱塞压力的挡板(1)包括至少两个外部 间隔开的壁(2)在其间限定至少一个空腔(3)以及包含在空腔(3)中的减小的,大气压或增强压力的可压缩气体或气体混合物。 挡板外壁(2)足够坚固以承受包含在空腔(3)中的气体或气体材料的压力足够强以抵抗罐(5,9)中的液体的静水压力,当挡板 1)位于罐(5,9)中的液体中,并且间隔开足以使空腔具有足以允许由冲击压缩液体导致的液体中的冲击波或波浪的量的量 通过将压缩液体膨胀到空腔体积中来减少罐外表面(6)上的射弹。 气体或气体混合物具有与液体密度充分不同的密度,以在冲击波或波浪撞击在挡板上的挡板(1)内提供基本全反射。
    • 10. 发明授权
    • Passive dynamic structure damage control in a hydraulic ram environment
    • 液压油缸环境中的被动动力结构损伤控制
    • US5934618A
    • 1999-08-10
    • US566344
    • 1995-12-01
    • Stuart E. KariGerould K. Young
    • Stuart E. KariGerould K. Young
    • B64D37/06B64D37/32
    • B64D37/06B64D37/32B64D2037/325
    • An aircraft fuel tank construction for providing enhanced fuel tank survivability and aircraft structural integrity when the fuel tank is penetrated by an exploding projectile, utilizes selective placement of low density, fluid-displacing material to create a low shock impedance region which decouples protected fuel tank structure from the destructive effects of a shock wave. The low shock impedance region may be formed using closed cell foam, or using isolators comprising bladders inflated with a compressible, inert gas. Such bladders should have a wedge shape and a wedge angle of at least 15 degrees. Precise shape is less important with closed cell foam. Polymethylacrilimide has been shown to be particularly effective for this purpose. Finite element analysis is useful in tuning the design of actual low shock impedance regions for actual aircraft designs. This construction is especially useful in fuel tanks manufactured from composite materials where tank wall pull-off from internal spars and stiffeners is the primary mode of catastrophic structural failure.
    • 一种飞机燃料箱结构,用于在燃料箱被爆炸的弹丸穿透时提供增强的燃料箱生存性和飞机结构完整性,利用低密度流体置换材料的选择性放置以产生低阻抗区域,其将保护的燃料箱结构 从冲击波的破坏性影响。 低震动阻抗区域可以使用闭孔泡沫形成,或者使用包括用可压缩惰性气体充气的气囊的隔离器形成。 这种气囊应具有至少15度的楔形和楔角。 闭孔泡沫时,精确的形状不太重要。 已经显示聚甲基丙烯酰亚胺对于此目的特别有效。 有限元分析可用于调整实际飞机设计中实际的低震动阻抗区域的设计。 这种结构在由复合材料制造的燃料箱中特别有用,其中从内部翼梁和扶强材的槽壁拉出是灾难性结构故障的主要模式。