Rotor blade construction for circulation control aircraft
    1.
    发明授权
    Rotor blade construction for circulation control aircraft 失效
    用于循环控制飞机的转子叶片结构

    公开(公告)号:US4770607A

    公开(公告)日:1988-09-13

    申请号:US43058

    申请日:1987-04-27

    Abstract: A circulation control aircraft rotor blade of advanced composite material having a spanwise Coanda surface 16 and a plurality of spanwise extending flexible panels 18 cooperating with the Coanda surface to define slots for the discharge of compressed air from a duct 14 within the blade with each panel having flexure means 34 associated with attaching means 24 and limiting means 38 for establishing a slot opening preload and a slot maximum opening and with limiting means 38 providing structural equilibrium and reduced bending moments in the inboard corners of the air duct.

    Abstract translation: 具有先导复合材料的循环控制飞机转子叶片,其具有翼展方向柯恩达表面16和多个翼展方向延伸的柔性板18,其与柯恩达表面协作以限定用于从叶片内的管道14排出压缩空气的狭槽,每个板具有 与安装装置24相关联的挠曲装置34和用于建立开槽预加载槽和槽最大开口的限制装置38,以及限制装置38,其提供空气管道的内侧角落中的结构平衡和减小的弯矩。

    Virtual Monitoring of Aircraft Fleet Loads
    2.
    发明申请
    Virtual Monitoring of Aircraft Fleet Loads 有权
    飞机机队负载虚拟监​​测

    公开(公告)号:US20110112878A1

    公开(公告)日:2011-05-12

    申请号:US12939596

    申请日:2010-11-04

    Abstract: A computer-implemented method, system, and computer program product for virtual monitoring of aircraft fleet loads are provided. The method includes calculating virtual load data associated with an aircraft from a set of orthogonal waveforms. The method also includes calculating a set of coefficients as a function of parametric data and high frequency data associated with an aircraft. The method further includes storing the set of coefficients on the aircraft and transmitting the set of coefficients to a ground-based system configured to reproduce the virtual load data based on a copy of the set of orthogonal waveforms and the received set of coefficients in order to perform aircraft fleet management.

    Abstract translation: 提供了一种用于虚拟监控飞机机队负载的计算机实现的方法,系统和计算机程序产品。 该方法包括从一组正交波形计算与飞行器相关联的虚拟负载数据。 该方法还包括计算作为参数数据和与飞行器相关联的高频数据的函数的一系列系数。 该方法还包括将该系数集合存储在飞行器上,并将该系数集合发送到基于地面的系统,该地面系统被配置为基于该组正交波形的副本和所接收的一系列系数再现虚拟负载数据,以便 执行飞机机队管理。

    Aircraft health and usage monitoring system with comparative fleet statistics
    3.
    发明授权
    Aircraft health and usage monitoring system with comparative fleet statistics 有权
    飞机健康与使用监测系统与比较舰队统计

    公开(公告)号:US07984146B2

    公开(公告)日:2011-07-19

    申请号:US11417465

    申请日:2006-05-04

    CPC classification number: G06Q50/30 G06Q10/06 G08G5/0013 H04L67/02 H04L67/125

    Abstract: A Health and Usage Monitoring System (HUMS) utilizes a common architecture which permits OEM and rotorcraft operators to view and trend HUMS data for an entire aircraft fleet independent of aircraft model, HUMS vendor, or raw data format. The system operates through a web portal that provides users with comparative information on HUMS parameters relative to fleet statistics. The user may view HUMS data for the entire fleet or drill down to a particular HUMS acquisition on a specific flight. The web based format also facilities display and communication of warnings in a timely manner.

    Abstract translation: 卫生和使用监测系统(HUMS)利用一种通用架构,允许OEM和旋翼航空器运营商独立于飞机模型,HUMS供应商或原始数据格式来查看和趋势整个飞机机队的HUMS数据。 该系统通过门户网站进行操作,为用户提供有关HUMS参数相对于车队统计信息的比较信息。 用户可以查看整个车队的HUMS数据,或者查看特定航班上的特定HUMS采集。 基于网络的格式还可以及时显示和通知警告。

    Drive train assembly for a rotor assembly having ducted, coaxial
counter-rotating rotors
    4.
    发明授权
    Drive train assembly for a rotor assembly having ducted, coaxial counter-rotating rotors 失效
    用于转子组件的传动系组件,其具有导管的同轴反转转子

    公开(公告)号:US5226350A

    公开(公告)日:1993-07-13

    申请号:US903066

    申请日:1992-06-22

    Abstract: A drive train assembly for a rotor assembly having ducted, coaxial counter-rotating rotors includes a sprag clutch, an engine coupling subassembly, a transmission coupling subassembly, and a drive shaft mechanically interconnected at the ends thereof to the engine and transmission coupling subassemblies, respectively. The drive train assembly is design optimized to maximize the functional capability of the sprag clutch, the engine coupling subassembly including an external crown spline coupling, internal spline coupling combination that is mounted in combination with the sprag clutch so that loads transmitted through the external crown spline coupling react through the center of the sprag clutch. Further, the drive train assembly is design optimized to maximize allowable axial, angular, and/or parallel misalignments between the engine and the rotor assembly as a result of the mechanical interconnection of the drive shaft to the external crown spline coupling, internal spline coupling combination of the engine coupling subassembly and to the external crown spline coupling, gear spline coupling combination of the transmission coupling subassembly. The drive shaft is configured as a torque tube having inside and outside diameters sized to provide torsionally soft drive shaft such that the drive shaft functions as a torsional spring to isolate spline coupling teeth, the sprag clutch, transmission gearing, and the rotor assembly from vibratory torque generated by the engine.

    Abstract translation: 用于具有管道式同轴反向旋转转子的转子组件的传动系组件包括分离离合器,发动机联接子组件,变速器联轴器组件和在其端部机械相互连接到发动机和变速器联轴器组件的驱动轴 。 传动系组件被设计优化,以最大限度地发挥起落架离合器的功能能力,发动机联轴器组件包括外部花键联轴器,内部花键联接组合,与楔形离合器组合安装,使得通过外部冠状花键传递的载荷 联轴器通过楔形离合器的中心反作用。 此外,传动系组件被设计优化以使得由于驱动轴与外冠花键联轴器,内花键联接组合的机械互连而使发动机和转子组件之间的允许的轴向,角度和/或平行的不对准最大化 的发动机联轴器组件和外部花键联轴器,齿轮花键联轴器组合的变速器联轴器组件。 驱动轴被构造为具有内径和外径的扭矩管,扭矩管的尺寸设置成提供扭转软的驱动轴,使得驱动轴用作扭转弹簧以将花键联接齿,楔形离合器,传动齿轮传动装置和转子组件从振动 发动机产生的转矩。

    Progressive engagement clutch
    5.
    发明授权
    Progressive engagement clutch 失效
    渐进接合离合器

    公开(公告)号:US5048652A

    公开(公告)日:1991-09-17

    申请号:US440824

    申请日:1989-11-24

    CPC classification number: F16D43/14

    Abstract: A progressive clutch includes a centrifugal clutch 10 attached to a drive shaft and inserted into a clutch housing assembly 16 to engage with clutch material 28 during low rpm operation. As the rpm of the input drive shaft 2 increases, the centrifugal force on pellets 32 overcomes the force of compression springs 34, and extension springs 40 pull a pin engagement assembly 30 towards the clutch housing assembly 16 thus engaging pins 38 into elongated holes 42 to provide positive drive from the drive shaft 2 to the driven shaft 21.

    Snubber assembly for a rotor assembly having ducted, coaxial
counter-rotating rotors
    6.
    发明授权
    Snubber assembly for a rotor assembly having ducted, coaxial counter-rotating rotors 失效
    用于转子组件的缓冲组件,其具有导管的同轴反转转子

    公开(公告)号:US5340279A

    公开(公告)日:1994-08-23

    申请号:US903063

    申请日:1992-06-22

    Abstract: A snubber assembly for a rotor assembly having ducted, coaxial counter-rotating rotors that is design optimized to facilitate utilization of a self-aligning bearing and for installation inboard of the corresponding flexbeam-to-rotor hub attachment joint, thereby enhancing accessibility and reducing maintenance costs. The rotor hub of the rotor assembly is design optimized for securing the snubber assembly in combination therewith and includes a plurality of arms, each arm forming an outboard clevis for attaching the rotor assembly flexbeam to the rotor hub. Inboard of the clevis, each rotor hub arm includes an outboard internal bulkhead having a bolt hole therethrough and an inboard internal bulkhead having a bolt hole therethrough. The inboard and outboard internal bulkheads in combination define a bearing cavity and an internal cavity for securing the snubber assembly in combination with the rotor hub. The snubber assembly includes a spherical self-aligning bearing, a bearing bolt, a locking nut, a snubber bracket secured in combination with the spherical bearing, and securing bolts. The spherical bearing, snubber bracket combination is rotatably mounted within the bearing cavity utilizing the bearing bolt. The bearing bolt is secured in combination with the rotor hub utilizing the locking nut, which is threaded onto the bearing bolt in the internal cavity to jam against the inboard internal bulkhead. The securing bolts are utilized to secure the snubber bracket in combination with the corresponding integrated torque tube/spar member of the rotor assembly.

    Abstract translation: 一种用于转子组件的缓冲组件,其具有导管同轴的反向旋转转子,其设计优化以便于利用自对准轴承并安装在对应的挠性梁至转子轮毂附接接头的内侧,从而增强可接近性并减少维护 费用 转子组件的转子轮毂被设计为优化用于将缓冲器组件与其组合固定并且包括多个臂,每个臂形成用于将转子组件挠性束附接到转子毂的外侧U形夹。 在U形夹的内侧,每个转子轮毂臂包括具有穿过其中的螺栓孔的外侧内部隔板和具有穿过其中的螺栓孔的内侧内部隔板。 内侧和外侧的内部舱壁组合地限定了轴承腔和用于将缓冲器组件与转子毂组合固定的内部空腔。 缓冲组件包括球形自调心轴承,轴承螺栓,锁紧螺母,与球面轴承组合固定的缓冲支架和固定螺栓。 球轴承,缓冲支架组合使用轴承螺栓可旋转地安装在轴承腔内。 轴承螺栓利用锁定螺母与转子毂组合固定,该锁定螺母被拧到内部空腔中的轴承螺栓上以卡在内侧内部舱壁上。 紧固螺栓用于将缓冲支架与转子组件的相应的集成扭矩管/翼梁构件组合固定。

    Composite flexbeam joint
    7.
    发明授权
    Composite flexbeam joint 失效
    复合弹性接头

    公开(公告)号:US4466774A

    公开(公告)日:1984-08-21

    申请号:US413029

    申请日:1982-08-30

    CPC classification number: B64C27/33 B64C27/32

    Abstract: A helicopter rotor system using composite flexbeams for connecting a rotor blade to the rotor hub, each flexbeam being of C-section and having a web section made up of 0.degree. and .+-.45.degree. plies and top and bottom flanges made up of low angle plies in the direction of their length with their ends being connected by an arc of plies so that the top and bottom flange plies are continuous with an attachment fitting encased at the ends of the flexbeams.

    Abstract translation: 一种直升机转子系统,使用复合柔性梁将转子叶片连接到转子轮毂上,每个柔性梁为C形截面,并具有由0°和+/- 45°层组成的腹板部分,顶部和底部凸缘由低 角度在它们的长度方向上,其端部通过一层叠层连接,使得顶部和底部凸缘层与包围在柔性梁的端部的附接配件连续。

    Method of reducing a nose-up pitching moment on a ducted unmanned aerial vehicle
    8.
    发明授权
    Method of reducing a nose-up pitching moment on a ducted unmanned aerial vehicle 失效
    减少管道式无人驾驶飞行器上的起搏俯仰力矩的方法

    公开(公告)号:US06170778B2

    公开(公告)日:2001-01-09

    申请号:US09296716

    申请日:1999-04-22

    Abstract: A method for reducing a nose-up pitching moment in an unmanned aerial vehicle during forward flight. The unmanned aerial vehicle includes counter-rotating rotor assemblies that are mounted within a duct. Each rotor assembly includes a plurality of rotor blades. The method involves adjusting the rotor blades to have substantially zero pitch. Then rotating the rotor assemblies to produce a virtual plane across the duct. The virtual plane is operative for substantially deflecting air passing over the fuselage away from the duct. In one embodiment of the invention, the method involves the further step of obstructing at least a portion of the bottom of the duct to inhibit air that is flowing across the bottom of the duct from passing into the duct.

    Abstract translation: 一种用于在远程飞行期间减少无人驾驶飞行器中的起搏俯仰力矩的方法。 无人驾驶飞行器包括安装在管道内的反向旋转转子组件。 每个转子组件包括多个转子叶片。 该方法包括调整转子叶片以使其基本上为零。 然后旋转转子组件以在管道上产生虚拟平面。 虚拟平面可操作用于使穿过机身的空气基本上偏转远离管道。 在本发明的一个实施例中,该方法包括阻碍管道底部的至少一部分的进一步的步骤,以阻止流过管道底部的空气进入管道。

    Unmanned VTOL ground surveillance vehicle
    9.
    发明授权
    Unmanned VTOL ground surveillance vehicle 失效
    无人驾驶直升机地面监视车

    公开(公告)号:US5575438A

    公开(公告)日:1996-11-19

    申请号:US239645

    申请日:1994-05-09

    Abstract: An unmanned aerial vehicle (UAV) has a toroidal fuselage and a rotor assembly having a pair of counter-rotating rotors secured in fixed coaxial combination with the toroidal fuselage to provide a vertical takeoff and landing (VTOL) capability for the UAV. One embodiment of the VTOL UAV is especially configured for ground surveillance missions by the inclusion of an externally mounted, remotely controllable stowable sensor subsystem that provides an azimuthal scanning capability and a predetermined elevation/depression scanning capability to accomplish the ground surveillance mission and a foldable landing gear subsystem to facilitate landing of the VTOL UAV at unprepared ground surveillance sites.

    Abstract translation: 无人飞行器(UAV)具有环形机身和转子组件,其具有与环形机身固定的同轴组合的一对反向旋转转子,以为无人机提供垂直起飞和着陆(VTOL)能力。 VTOL UAV的一个实施例通过包括外部安装的远程可控的可收缩传感器子系统特别地配置用于地面监视任务,其提供方位扫描能力和预定的仰角/凹陷扫描能力以完成地面监视任务和可折叠着陆 齿轮子系统,以便于在未准备的地面监视场所着陆无人机。

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