Active system for early destruction of trailing vortices
    31.
    发明授权
    Active system for early destruction of trailing vortices 失效
    主动系统用于早期破坏尾涡

    公开(公告)号:US6082679A

    公开(公告)日:2000-07-04

    申请号:US964941

    申请日:1997-11-05

    摘要: An active control method and apparatus for encouraging the early destruction of trailing vortices formed by a lifting body having at least two control surfaces on each side and creating multiple vortex pairs is provided. The method includes actuating the control surfaces in a manner leading to the direct excitation of one or more of the Transient Growth Mechanism, the Short Wavelength Instability, the Long Wavelength Instability, and the Crow Instability to result in the accelerated breakup of the trailing vortices. A method of selecting control parameters in an active control system includes identifying the near-field vorticity distribution of the aircraft, selecting at least one amplification mechanism for distorting the trailing vortices, determining amplitudes and wavelengths for imposed vortex perturbations, simulating trailing vortex evolutions, determining effectiveness of perturbations and amplification mechanisms, determining vortex positions as a function of control surface deflections, and determining control parameters to govern the movement of the wing control surfaces.

    摘要翻译: 提供了一种主动控制方法和装置,用于鼓励早期破坏由每侧具有至少两个控制表面并且产生多个涡流对的提升体形成的尾部涡流的早期破坏。 该方法包括以导致直接激发瞬时生长机制,短波长不稳定性,长波长不稳定性和乌鸦不稳定性中的一种或多种的方式致动控制表面,以导致拖尾涡流的加速分解。 在主动控制系统中选择控制参数的方法包括识别飞行器的近场涡度分布,选择至少一个用于扭曲尾涡流的放大机构,确定施加的涡流扰动的振幅和波长,模拟尾涡流演化,确定 扰动和放大机制的有效性,确定作为控制表面偏转的函数的涡流位置,以及确定控制参数以控制机翼控制表面的运动。

    Method and apparatus for retaining wires in a cylindrical tube
    32.
    发明授权
    Method and apparatus for retaining wires in a cylindrical tube 失效
    用于将线保持在圆柱形管中的方法和装置

    公开(公告)号:US5942712A

    公开(公告)日:1999-08-24

    申请号:US954883

    申请日:1997-10-09

    申请人: Craig S. Mello

    发明人: Craig S. Mello

    摘要: A submarine signal launcher is disclosed for preventing pinched control ws therein. The submarine signal launcher includes a gas generator, an acoustic device countermeasure, a launch tube for housing the gas generator and the countermeasure, and a ram plate positioned between the gas generator and the countermeasure. A status cable is connected to the countermeasure and intermediately threaded through the ram plate and joined to the gas generator. A collapsible tube connected to the ram plate and to the gas generator. The status cable is confined within the collapsible tube. Securing members are formed on opposing ends of the collapsible tube for securing the collapsible tube to the ram plate and the gas generator, wherein upon assembly of the gas generator with the ram plate and the countermeasure within the launch tube, the collapsible tube will protect the cable from being pinched between joined ends of the ram plate and the gas generator.

    摘要翻译: 公开了一种用于防止其中的夹紧控制线的潜艇信号发射器。 潜艇信号发射器包括气体发生器,声学装置对策,用于容纳气体发生器的发射管和对策,以及位于气体发生器和对策之间的冲击板。 状态电缆连接到对策,并且中间螺纹穿过柱塞板并连接到气体发生器。 连接到柱塞板和气体发生器的可折叠管。 状态电缆被限制在可折叠管内。 固定构件形成在可折叠管的相对端部,用于将可折叠管固定到柱塞板和气体发生器,其中当气体发生器与压头板组装在发射管内时,可折叠管将保护 电缆被夹在压头板的接合端和气体发生器之间。

    Electromagnetically activated compliant wavy-wall
    33.
    发明授权
    Electromagnetically activated compliant wavy-wall 失效
    电磁激活柔顺波浪壁

    公开(公告)号:US5359574A

    公开(公告)日:1994-10-25

    申请号:US113378

    申请日:1993-08-27

    摘要: Electromagnets are disposed in an elastomeric coating affixed to a body esed to a fluid. Controllable magnetic forces created by the electromagnets produce a wavy-wall configuration in the surface of the coating which may be static, dynamic, or static in part and dynamic in part, and which interfaces with the fluid to controllably alter noise, turbulence and drag characteristics of the body mechanically. Electrodes may be fixed on the surface of the coating to produce electric force fields for interacting with the magnetic fields and the wavy-wall, to produce magnetohydrodynamically generated Lorentz forces which controllably further alter noise, turbulence and drag characteristics of the body.

    摘要翻译: 电磁体设置在固定到暴露于流体的主体的弹性体涂层中。 由电磁铁产生的可控磁力在涂层的表面产生波浪壁构造,其可以是静态的,动态的或部分静态的,部分动态的,并且与流体接触以可控地改变噪声,湍流和阻力特性 的身体机械。 电极可以固定在涂层的表面上以产生用于与磁场和波浪壁相互作用的电力场,以产生磁流体动力学产生的洛伦兹力,其可控地进一步改变身体的噪声,湍流和阻力特性。

    Method of operating submerged submarines and submarine
    35.
    发明授权
    Method of operating submerged submarines and submarine 失效
    运行潜艇和海员的方法

    公开(公告)号:US5143007A

    公开(公告)日:1992-09-01

    申请号:US602317

    申请日:1990-11-15

    IPC分类号: B63G8/34

    CPC分类号: B63G8/34

    摘要: A method for operating submerged submarines and a submarine are disclosed which are used to camouflage submerged submarines which, while submerged and travelling, draw a trail of heated cooling water behind themselves. In order to reduce the risk of detection of such submerged submarines by means of heat-sensitive detectors, either the density of the heated cooling water is increased through the introduction of additives, or, the heated cooling water is brought, by mechanical means, to a depth far below the submarine for preventing heated-up cooling water to rise up to the sea surface.

    摘要翻译: PCT No.PCT / DE90 / 00194 Sec。 371日期1990年11月15日 102(e)1990年11月15日日期PCT 1990年3月16日PCT PCT。 第WO90 / 10575号公报 1990年9月20日。一种用于操作潜艇和潜艇的方法被公开用于伪装潜水艇,潜艇在淹没和旅行的同时在其后面绘制一列加热的冷却水。 为了降低通过热敏检测器检测这种潜水艇的风险,通过引入添加剂来增加加热的冷却水的密度,或者通过机械方法将加热的冷却水带到 远远低于潜艇的深度,以防止加热的冷却水上升到海面。

    Method and apparatus for reducing acoustic emission from submerged
submarines
    36.
    发明授权
    Method and apparatus for reducing acoustic emission from submerged submarines 失效
    用于减少来自下级子午线的声发射的方法和装置

    公开(公告)号:US5130948A

    公开(公告)日:1992-07-14

    申请号:US602310

    申请日:1990-11-15

    摘要: A method and an apparatus are disclosed serving to reduce acoustic emission from submerged submarines in which vibrations from moving mechanical elements within an inner region are transmitted to an outer hull via a vibration transmission path. For decoupling the outer hull as completely as possible from the moving mechanical elements, for example periodically moving nuclear reactor control rods, the vibrations are actively damped. Means are provided for ascertaining the motion of the mechanical elements relative to the outer hull and for superimposing upon said motion of counter-motion of opposite direction.

    摘要翻译: PCT No.PCT / DE90 / 00192 Sec。 371日期1990年11月15日 102(e)1990年11月15日日期PCT 1990年3月16日PCT PCT。 出版物WO90 / 10926 1990年9月20日,公开了一种用于减少淹没潜艇的声发射的方法和装置,其中通过振动传播路径将来自内部区域内的移动机械元件的振动传递到外部船体。 为了尽可能完全地将外壳与移动的机械元件(例如周期性地移动的核反应堆控制杆)进行解耦,振动被积极地衰减。 提供了用于确定机械元件相对于外壳的运动并且用于在所述相反方向的反向运动的运动上叠加的装置。

    Application of coverings to surfaces
    37.
    发明授权
    Application of coverings to surfaces 失效
    覆盖层应用于表面

    公开(公告)号:US5106439A

    公开(公告)日:1992-04-21

    申请号:US466907

    申请日:1990-01-18

    摘要: Coverings are applied to a surface by means of a member capable of temporarily holding the covering and urging it against the surface with adhesive interposed between the covering and the surface. The covering may be held by the member by means of suction and be urged against the surface by air pressure. The member may be mounted on a first articulated arm whose movement can be controlled by an operator who may be situated on a working platform mounted on a second articulated arm. The covering may be an acoustic tile for application to the surface of a submarine hull.

    摘要翻译: 覆盖物通过能够临时保持覆盖物的部件施加在表面上,并且使用插入在覆盖物和表面之间的粘合剂将其推向表面。 覆盖物可以由构件通过吸力保持,并通过空气压力被推靠在表面上。 该构件可以安装在第一铰接臂上,该第一铰接臂的移动可以由可位于安装在第二铰接臂上的工作平台上的操作者控制。 覆盖物可以是用于施加到潜艇船体表面的声音瓦片。

    Noise making device
    38.
    发明授权
    Noise making device 失效
    制噪装置

    公开(公告)号:US4183008A

    公开(公告)日:1980-01-08

    申请号:US144513

    申请日:1961-10-11

    申请人: Ralph P. Crist

    发明人: Ralph P. Crist

    IPC分类号: B01J7/02 B63G8/34 H04B11/00

    CPC分类号: B63G8/34 B01J7/02 H04B11/00

    摘要: 4. An underwater noise generator comprising a thick-walled hollow cylindrl housing, said housing having continuous inner and outer cylindrical surfaces and at least one hollow portion between said inner and outer surfaces; a spindle rotatably mounted within said housing along the longitudinal axis thereof, means for rotating said spindle, and a roller mounted on said spindle and driven thereby in rolling contact with said inner surface of said housing, said roller having a plurality of grooves cut in the exterior surface thereof, whereby sound is produced as said rollers roll on said cylindrical housing.

    摘要翻译: 4.一种水下噪声发生器,包括厚壁中空圆柱形壳体,所述壳体具有连续的内部和外部圆柱形表面以及在所述内部和外部表面之间的至少一个中空部分; 主轴,其沿着其纵向轴线可旋转地安装在所述壳体内,用于使所述心轴旋转的装置和安装在所述心轴上并由此与所述壳体的所述内表面滚动接触的辊,所述辊具有切割在所述壳体中的多个槽 所述滚筒在所述圆柱形壳体上滚动,从而产生声音。

    Hull device
    40.
    发明授权

    公开(公告)号:US11634199B2

    公开(公告)日:2023-04-25

    申请号:US16765244

    申请日:2018-11-19

    申请人: NAVAL GROUP

    IPC分类号: B63G8/04 B63G8/34

    摘要: Disclosed is a hull device designed to be reversibly attached to an outer surface of a ferromagnetic structure of a marine or submarine system or vessel. The device includes at least one attachment surface suitable for attaching the device to the structure, and a plurality of permanent magnets arranged in the vicinity of the attachment surface in order to attach the device to the structure.