Aircraft landing control system
    2.
    发明授权
    Aircraft landing control system 失效
    飞机着陆控制系统

    公开(公告)号:US4357661A

    公开(公告)日:1982-11-02

    申请号:US123529

    申请日:1980-02-22

    CPC分类号: G05D1/0676

    摘要: Upon aircraft landing approach, flare path command signals of altitude, vertical velocity and vertical acceleration are generated as functions of aircraft position and velocity with respect to the ground. The command signals are compared with corresponding actual values to generate error signals which are used to control the flight path.

    摘要翻译: 在飞机着陆进近时,产生高程,垂直速度和垂直加速度的火炬路径指令信号,作为飞机相对于地面的位置和速度的函数。 命令信号与相应的实际值进行比较,以产生用于控制飞行路径的误差信号。

    Method of constructing mathematical representations of objects from reflected sonar signals
    3.
    发明授权
    Method of constructing mathematical representations of objects from reflected sonar signals 有权
    从反射声纳信号中构建物体的数学表示的方法

    公开(公告)号:US07466628B2

    公开(公告)日:2008-12-16

    申请号:US11504826

    申请日:2006-08-15

    申请人: Rolf Hansen

    发明人: Rolf Hansen

    IPC分类号: G01S15/89

    摘要: Data recorded by directing a single sonar beam pulse towards a surface, and recording the reflected sonar signals with a large plurality of detectors, is used to generate a mathematical representation of the surface. The mathematical representation of the surface is chosen to fit the recorded data according to a criterion such as a least squares fit of a plane to the recorded data points. A mathematical representation of on object is built up from a number of non-overlapping mathematical objects such as triangles, each triangle joined to adjoining triangles to form a continuous surface in three dimensions. Images of such mathematical representations are then presented to the observer.

    摘要翻译: 使用通过将单个声纳光束脉冲引导到表面并且用大量多个检测器记录反射的声纳信号而记录的数据被用于生成表面的数学表示。 选择表面的数学表示以根据诸如平面与记录的数据点的最小二乘拟合的标准来适应所记录的数据。 对象的数学表示是由多个不重叠的数学对象(如三角形)构成的,每个三角形连接到邻接的三角形以形成三维连续的表面。 然后将这种数学表示的图像呈现给观察者。

    Process of forming large crystalled 1,3,5-triaminotrinitrobenzene
    4.
    发明授权
    Process of forming large crystalled 1,3,5-triaminotrinitrobenzene 失效
    形成大型结晶1,3,5-三氨基硝基苯的方法

    公开(公告)号:US4439622A

    公开(公告)日:1984-03-27

    申请号:US340364

    申请日:1982-01-18

    IPC分类号: C06B25/04 C07C85/00

    CPC分类号: C07C209/10

    摘要: A process for the manufacture of 1,3,5-triaminotrinitrobenzene having a large crystal size by aminating 1,3,5-trichlorotrinitrobenzene with an agent at atmospheric pressure at a temperature of at least about 160.degree. C. with an antioxidant added to the reaction mixture.

    摘要翻译: 一种制备具有大晶体尺寸的1,3,5-三氨基硝基苯的方法,该方法是在大气压下,在至少约160℃的温度下,将1,3,5-三氯硝基苯与抗氧剂加入到 反应混合物。

    Wind turbine blade comprising vortex generators

    公开(公告)号:US10047720B2

    公开(公告)日:2018-08-14

    申请号:US14232108

    申请日:2012-07-20

    摘要: Disclosed is a wind turbine blade and a method for retrofitting a wind turbine blade, the wind turbine blade extending in a longitudinal direction along a pitch axis and having a tip end and a root end as well as a blade length, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow generating a lift, wherein the suction side of the wind turbine blade is provided with a plurality of vortex generators positioned along a mounting line having a proximal end point nearest the root end and a distal end point nearest the tip end, wherein the mounting line is a concave line seen from the trailing edge of the wind turbine blade.

    Method and apparatus for reducing false wind shear alerts
    6.
    发明授权
    Method and apparatus for reducing false wind shear alerts 失效
    减少假风切变警报的方法和装置

    公开(公告)号:US5493293A

    公开(公告)日:1996-02-20

    申请号:US803659

    申请日:1991-12-02

    IPC分类号: G05D1/06 G08B23/00

    CPC分类号: G05D1/0615

    摘要: A wind shear detection and alert system, compensated for the calibrated airspeed of the aircraft to minimize nuisance wind shear alerts. The wind shear detection and alert system (10) determines a reference airspeed as a function of flap position, with respect to a minimum maneuver airspeed signal (60) provided by a stall warning computer on the aircraft. The reference airspeed is subtracted from a calibrated airspeed signal (76) that has been filtered to remove minor variations in the signal using a Laplace filter (68). The differential airspeed is further filtered by another Laplace filter (78), producing a filtered differential airspeed signal (70), which the system uses to determine a delta threshold (48) to be applied in compensation for the aircraft airspeed to a wind shear alert reference signal. As the filtered differential airspeed increases, the delta threshold signal increases the absolute level of the wind shear alert threshold, reducing the likelihood of unnecessary wind shear alerts.

    摘要翻译: 风切变检测和报警系统,补偿飞机的校准空速,以最大限度地减少危害风切变警报。 风切变检测和警报系统(10)相对于由飞机上的失速警告计算机提供的最小机动空速信号(60),确定作为挡板位置的函数的参考空速。 从经过滤波的校准空速信号(76)中减去参考空速,以使用拉普拉斯滤波器(68)消除信号中的微小变化。 差分空速被另一拉普拉斯滤波器(78)进一步滤波,产生滤波后的差分空速信号(70),系统用于确定要用于将飞机空速补偿到风切变警报的增量阈值(48) 参考信号。 随着经滤波的差分空速增加,增量阈值信号增加了风切变警报阈值的绝对水平,从而降低了不必要的风切变警报的可能性。

    Method and apparatus for producing an aircraft flare path control signal
    7.
    发明授权
    Method and apparatus for producing an aircraft flare path control signal 失效
    用于制造飞机弹道路径控制信号的方法和装置

    公开(公告)号:US4354237A

    公开(公告)日:1982-10-12

    申请号:US162451

    申请日:1980-06-24

    IPC分类号: G05D1/06 G06G7/78 G05D1/12

    CPC分类号: G05D1/0676

    摘要: Aircraft altitude, ground velocity, and altitude rate signals are input to a computer which, using a unique control law, generates a pitch control surface command signal suitable for guiding an aircraft on its flare path to a specified runway touchdown point despite varying wind conditions.

    摘要翻译: 飞机高度,地面速度和高度速度信号被输入到计算机,该计算机使用独特的控制规律生成俯仰控制表面命令信号,该信号适合于将飞机在其火炬路径上引导到指定的跑道着陆点,尽管风力条件变化。

    WIND TURBINE BLADE COMPRISING VORTEX GENERATORS
    8.
    发明申请
    WIND TURBINE BLADE COMPRISING VORTEX GENERATORS 有权
    包含VORTEX发电机的风力涡轮机叶片

    公开(公告)号:US20140140856A1

    公开(公告)日:2014-05-22

    申请号:US14232108

    申请日:2012-07-20

    IPC分类号: F03D1/06 F03D1/00

    摘要: Disclosed is a wind turbine blade and a method for retrofitting a wind turbine blade, the wind turbine blade extending in a longitudinal direction along a pitch axis and having a tip end and a root end as well as a blade length, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow generating a lift, wherein the suction side of the wind turbine blade is provided with a plurality of vortex generators positioned along a mounting line having a proximal end point nearest the root end and a distal end point nearest the tip end, wherein the mounting line is a concave line seen from the trailing edge of the wind turbine blade.

    摘要翻译: 公开了一种风力涡轮机叶片和用于改装风力涡轮机叶片的方法,所述风力涡轮机叶片沿着俯仰轴线在纵向方向上延伸并且具有尖端和根端以及叶片长度,所述风力涡轮机叶片进一步 包括具有压力侧和吸力侧的轮廓轮廓,以及前缘和后缘,弦杆具有在被产生升力的入射气流撞击时在其间延伸的弦长,弦廓长度在其间延伸,其中, 风力涡轮机叶片的吸入侧设置有沿着安装线定位的多个涡流发生器,该安装线具有最靠近根端的近端点和最靠近末端的远端点,其中安装线是从 风力涡轮机叶片的后缘。

    Method and apparatus for an aircraft inner loop elevator control system
    9.
    发明授权
    Method and apparatus for an aircraft inner loop elevator control system 失效
    飞机内环电梯控制系统的方法和装置

    公开(公告)号:US4419732A

    公开(公告)日:1983-12-06

    申请号:US301911

    申请日:1981-09-14

    IPC分类号: G05D1/06 G06G7/78 G05D1/12

    CPC分类号: G05D1/0676

    摘要: An improved inner loop control is disclosed for use in an aircraft pitch axis control system. Signals representative of vertical acceleration and pitch rate are complementary filtered and summed to produce an "inner loop" damping signal which is combined with "outer loop" command signals to produce an elevator control signal. The improved approach provides higher outer loop control law gains and better system stability, resulting in higher control bandwidth and tighter command tracking, especially in turbulence.

    摘要翻译: 公开了一种用于飞机俯仰轴控制系统的改进的内环控制。 代表垂直加速度和俯仰速率的信号被互补滤波和相加以产生与“外环”指令信号组合以产生电梯控制信号的“内环”阻尼信号。 改进的方法提供更高的外环控制律增益和更好的系统稳定性,导致更高的控制带宽和更紧密的命令跟踪,特别是在湍流中。