Apparatus for the active suppression of noise radiated by a surface
    1.
    发明授权
    Apparatus for the active suppression of noise radiated by a surface 有权
    用于主动抑制由表面辐射的噪声的装置

    公开(公告)号:US06178246B1

    公开(公告)日:2001-01-23

    申请号:US09315770

    申请日:1999-05-20

    IPC分类号: A61F1106

    摘要: Noise generated by a noise radiating surface is actively suppressed by at least two axially sensitive noise sensors which produce a control signal for controlling a noise suppression actuator. The sensors integrate the sensed signal in an axially selective manner. The at least two sensors are sensing the signal in two directions which preferably cross each other orthogonally. The control signal activates the actuator in such a way that the actuator counteracts deflections or vibrations of the noise generating surface such as a vehicle body wall.

    摘要翻译: 由噪声辐射表面产生的噪声由至少两个轴向敏感的噪声传感器主动抑制,这些噪声传感器产生用于控制噪声抑制致动器的控制信号。 传感器将感测到的信号以轴向选择的方式进行集成。 至少两个传感器在两个方向上感测信号,这两个方向最好是正交地交叉。 控制信号激励致动器,使得致动器抵消噪声产生表面(例如车体壁)的偏转或振动。

    Device and method for monitoring the particle contamination in flowing hydraulic fluids
    2.
    发明授权
    Device and method for monitoring the particle contamination in flowing hydraulic fluids 有权
    用于监测流动液压油中颗粒污染的装置和方法

    公开(公告)号:US08184290B2

    公开(公告)日:2012-05-22

    申请号:US12519366

    申请日:2006-12-18

    IPC分类号: G01N15/02 G01N21/00

    摘要: A device for monitoring particle contamination in flowing hydraulic fluids includes a mechanism for particle counting and particle sizing. Further, a method for monitoring particle contamination in flowing hydraulic fluids: determines fluid flow velocity; counts particles in the hydraulic fluid passing the light barrier for a fixed period of time; and obtains particle size distribution by using a range of different trigger levels. The monitoring device is insertable into an A/C hydraulic system to enable an online-monitoring of degradation of fluid quality during normal flight operations or on the ground. The device and method help lower costs for A/C maintenance and increase A/C availability since necessary service actions can be scheduled strategically.

    摘要翻译: 用于监测流动液压流体中的颗粒污染的装置包括用于颗粒计数和颗粒尺寸的机构。 此外,用于监测流动液压流体中的颗粒污染的方法:确定流体流速; 计算通过光栅的液压流体中的颗粒一段固定的时间; 并通过使用不同触发电平的范围来获得粒度分布。 监控装置可插入A / C液压系统,以便在正常飞行操作或地面上进行在线监测流体质量下降。 该设备和方法有助于降低A / C维护的成本,并提高A / C可用性,因为可以策略性地调度必要的服务操作。

    HELICOPTER WITH CYCLOIDAL ROTOR SYSTEM
    3.
    发明申请
    HELICOPTER WITH CYCLOIDAL ROTOR SYSTEM 有权
    直升机与循环转子系统

    公开(公告)号:US20120256042A1

    公开(公告)日:2012-10-11

    申请号:US13440160

    申请日:2012-04-05

    IPC分类号: B64C27/82

    摘要: The invention is related to a helicopter (10) comprising a main rotor (12), a cycloidal rotor (14) and a rotating cylinder (18). The rotating cylinder (18) extends along a longitudinal axis of a tail boom (13). The cycloidal rotor (14) extends at least partly along said same tail boom (13) and rotates outside the rotating cylinder (18).

    摘要翻译: 本发明涉及包括主转子(12),摆线转子(14)和旋转圆筒(18)的直升机(10)。 旋转圆筒(18)沿尾梁(13)的纵向轴线延伸。 摆线转子(14)至少部分地沿着所述相同的尾部悬臂(13)延伸并旋转到旋转圆筒(18)的外部。

    Device and process for oscillation insulation in a transmission path
    4.
    发明授权
    Device and process for oscillation insulation in a transmission path 失效
    传输路径中振荡绝缘的装置和过程

    公开(公告)号:US08037981B1

    公开(公告)日:2011-10-18

    申请号:US10838233

    申请日:2004-05-05

    IPC分类号: F16F15/00

    CPC分类号: F16F15/005 B64C2027/003

    摘要: Device and process for oscillation insulation in a transmission path. The device includes a first body structured and arranged to undergo an oscillation movement, at least one rigid connection element, a second body connected to the first body via the at least one rigid connection element, and an actuator device attached to the at least one connection element. A sensor unit is arranged in an interface area of the at least one connection element, and a regulator unit, connected to the sensor unit, is arranged to control the actuator device to perform an elastic deformation equivalent to an oscillation movement of the first body. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

    摘要翻译: 传输路径中振荡绝缘的装置和过程。 该装置包括构造和布置成经历振荡运动的第一主体,至少一个刚性连接元件,经由至少一个刚性连接元件连接到第一主体的第二主体,以及附接到至少一个连接的致动器装置 元件。 传感器单元布置在所述至少一个连接元件的接口区域中,并且连接到所述传感器单元的调节器单元布置成控制所述致动器装置执行与所述第一主体的振荡运动相当的弹性变形。 本摘要既不旨在限定本说明书中公开的发明,也不旨在以任何方式限制本发明的范围。

    Helicopter with cycloidal rotor system
    5.
    发明授权
    Helicopter with cycloidal rotor system 有权
    直升机用摆线转子系统

    公开(公告)号:US08727265B2

    公开(公告)日:2014-05-20

    申请号:US13440160

    申请日:2012-04-05

    IPC分类号: B64C27/00 B64C27/82

    摘要: The invention is related to a helicopter (10) comprising a main rotor (12), a cycloidal rotor (14) and a rotating cylinder (18). The rotating cylinder (18) extends along a longitudinal axis of a tail boom (13). The cycloidal rotor (14) extends at least partly along said same tail boom (13) and rotates outside the rotating cylinder (18).

    摘要翻译: 本发明涉及包括主转子(12),摆线转子(14)和旋转圆筒(18)的直升机(10)。 旋转圆筒(18)沿尾梁(13)的纵向轴线延伸。 摆线转子(14)至少部分地沿着所述相同的尾部悬臂(13)延伸并旋转到旋转圆筒(18)的外部。

    Method and device for avoiding a collision of a rotating rotor blade of a rotary-wing aircraft with blade vortex
    6.
    发明授权
    Method and device for avoiding a collision of a rotating rotor blade of a rotary-wing aircraft with blade vortex 有权
    用于避免旋转翼飞机的旋转转子叶片与叶片涡流碰撞的方法和装置

    公开(公告)号:US06749152B2

    公开(公告)日:2004-06-15

    申请号:US10237419

    申请日:2002-09-09

    IPC分类号: B64C2757

    摘要: A method for avoiding a collision of a rotating rotor blade of a rotary-wing aircraft with a blade vortex, and a device for executing the method. An aerodynamic parameter of the rotor blade of a rotary-wing aircraft is controlled, (for example, variation of the angle of incidence of the blade or profile variation of the blade), using a signal processing device that includes at least one open-loop and/or closed-loop control device, in such a way that a collision of the rotor blade with blade vortices becomes avoidable. The frequency content from the signal of the sound-pressure sensors is rapidly and precisely found. The harmonics are progressively adapted. A lesser calculation requirement per step and increase accuracy, as compared with an FFT analysis, is provided.

    摘要翻译: 一种用于避免旋转翼飞行器的转子叶片与叶片涡流的碰撞的方法,以及用于执行该方法的装置。 旋转翼飞行器的转子叶片的空气动力学参数被控制(例如,叶片的入射角或叶片的轮廓变化的变化),使用包括至少一个开环的信号处理装置 和/或闭环控制装置,使得转子叶片与叶片涡流的碰撞变得可避免。 声压传感器信号的频率内容迅速精确。 谐波逐渐适应。 提供了与FFT分析相比,每步减少计算要求并提高精度。

    DEVICE AND PROCESS FOR OSCILLATION INSULATION IN A TRANSMISSION PATH
    7.
    发明申请
    DEVICE AND PROCESS FOR OSCILLATION INSULATION IN A TRANSMISSION PATH 失效
    传输路径振荡绝缘的装置和过程

    公开(公告)号:US20110266104A1

    公开(公告)日:2011-11-03

    申请号:US10838233

    申请日:2004-05-05

    IPC分类号: F16F7/00 F16F15/02 F16F15/00

    CPC分类号: F16F15/005 B64C2027/003

    摘要: Device and process for oscillation insulation in a transmission path. The device includes a first body structured and arranged to undergo an oscillation movement, at least one rigid connection element, a second body connected to the first body via the at least one rigid connection element, and an actuator device attached to the at least one connection element. A sensor unit is arranged in an interface area of the at least one connection element, and a regulator unit, connected to the sensor unit, is arranged to control the actuator device to perform an elastic deformation equivalent to an oscillation movement of the first body. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

    摘要翻译: 传输路径中振荡绝缘的装置和过程。 该装置包括构造和布置成经历振荡运动的第一主体,至少一个刚性连接元件,经由至少一个刚性连接元件连接到第一主体的第二主体,以及附接到至少一个连接的致动器装置 元件。 传感器单元布置在所述至少一个连接元件的接口区域中,并且连接到所述传感器单元的调节器单元布置成控制所述致动器装置执行与所述第一主体的振荡运动相当的弹性变形。 本摘要既不旨在限定本说明书中公开的发明,也不旨在以任何方式限制本发明的范围。

    DEVICE AND METHOD FOR MONITORING THE PARTICLE CONTAMINATION IN FLOWING HYDRAULIC FLUIDS
    8.
    发明申请
    DEVICE AND METHOD FOR MONITORING THE PARTICLE CONTAMINATION IN FLOWING HYDRAULIC FLUIDS 有权
    用于监测液体流体中颗粒污染的装置和方法

    公开(公告)号:US20100027006A1

    公开(公告)日:2010-02-04

    申请号:US12519366

    申请日:2006-12-18

    IPC分类号: G01N15/02 G01N21/00 G01F1/20

    摘要: A device for monitoring particle contamination in flowing hydraulic fluids includes a mechanism for particle counting and particle sizing. Further, a method for monitoring particle contamination in flowing hydraulic fluids: determines fluid flow velocity; counts particles in the hydraulic fluid passing the light barrier for a fixed period of time; and obtains particle size distribution by using a range of different trigger levels. The monitoring device is insertable into an A/C hydraulic system to enable an online-monitoring of degradation of fluid quality during normal flight operations or on the ground. The device and method help lower costs for A/C maintenance and increase A/C availability since necessary service actions can be scheduled strategically.

    摘要翻译: 用于监测流动液压流体中的颗粒污染的装置包括用于颗粒计数和颗粒尺寸的机构。 此外,用于监测流动液压流体中的颗粒污染的方法:确定流体流速; 计算通过光栅的液压流体中的颗粒一段固定的时间; 并通过使用不同触发电平的范围来获得粒度分布。 监控装置可插入A / C液压系统,以便在正常飞行操作或地面上进行在线监测流体质量下降。 该设备和方法有助于降低A / C维护的成本,并提高A / C可用性,因为可以策略性地调度必要的服务操作。

    Piezoelectric extension actuator
    9.
    发明授权
    Piezoelectric extension actuator 失效
    压电延长执行器

    公开(公告)号:US07453185B2

    公开(公告)日:2008-11-18

    申请号:US10398390

    申请日:2001-10-02

    IPC分类号: H01L41/08

    摘要: A piezoelectric expansion actuator for d33 piezoelements, which allows vibrations in structures to be suppressed. An expansion actuator (1) includes a piezoelectric stack (2), which consists of d33 piezoelectric elements and is arranged between output elements (4), which are attached to the surface of the structure (7). The invention applies to a piezoelectric extension actuator, which is used to control vibrations in structures. Alternatively, in order to damp vibrations between the main gearbox of a helicopter rotor and the cellular structure of the cockpit, a power application point of the output element (18, 19, 180, 190; 35, 36) is arranged at a distance from the corresponding end plate of the piezoelectric stack (22, 220; 31, 32, 33) in the axial direction (X).

    摘要翻译: 用于d33压电元件的压电膨胀致动器,其允许抑制结构中的振动。 膨胀致动器(1)包括由d33压电元件组成并且布置在输出元件(4)之间的压电叠层(2),其连接到结构(7)的表面。 本发明适用于压电延伸致动器,其用于控制​​结构中的振动。 或者,为了减轻直升机转子的主变速箱和驾驶舱的蜂窝结构之间的振动,输出元件(18,19,180,190,35,36)的功率施加点被布置在距离 在轴向(X)上的压电叠层(22,220; 31,32,33)的相应端板。