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    • 81. 发明申请
    • ACTUATOR WITH TRANSFER OF ANGULAR MOMENTUM FOR THE ATTITUDE CONTROL OF A SPACECRAFT
    • 具有转移角度的运动员用于空间的姿态控制
    • US20100314499A1
    • 2010-12-16
    • US12744174
    • 2008-11-18
    • Jean Sperandei
    • Jean Sperandei
    • B64G1/28
    • B64G1/283B64G1/28B64G1/285B64G1/286
    • An attitude control actuator of a spacecraft includes a first momentum wheel driven in rotation by a motor and a second momentum wheel. Both momentum wheels are movable in rotation about an axis and are mechanically coupled by coupling means imposing between a rotation speed ω1 of the first momentum wheel and a rotation speed ω2 of the second momentum wheel a ratio R=ω2/ω1, negative on the one hand and continuously modifiable by the coupling means in response to a command on the other hand so as to modify the total angular momentum of the actuator while the total kinetic energy of the wheels are kept constant. In one embodiment, both momentum wheels have the same inertia and are coupled through a toroidal variator, where ratio R varies between −3 and −1/3. The motor drives the momentum wheels and operates as a generator for braking the momentum wheels.
    • 航天器的姿态控制致动器包括由马达和第二动量轮旋转驱动的第一动量轮。 两个动量轮可以围绕轴线旋转运动,并且通过在第一动量轮的旋转速度ω1和第二动量轮的转速ω2之间的耦合装置机械耦合,比率R =ω2/ω1为负的 响应于另一方面的命令,通过联接装置可连续地修改,以便在轮的总动能保持恒定的同时修改致动器的总角动量。 在一个实施例中,两个动量轮具有相同的惯性,并且通过环形变换器耦合,其中比率R在-3和-1/3之间变化。 电动机驱动动量轮并作为用于制动动量轮的发电机运行。
    • 83. 发明申请
    • Torquer Apparatus
    • 手套装置
    • US20100007303A1
    • 2010-01-14
    • US12296096
    • 2007-03-28
    • Olivier Chételat
    • Olivier Chételat
    • H02K1/27H02K1/12H02P6/18H02K29/10H02P6/08
    • G01C19/30B64G1/28H02K16/00H02K21/12H02K41/031H02K2201/03H02K2201/18Y10T74/1254
    • A torquer apparatus generally comprises a reaction-gyro sphere consisting of a concentric assembly of a substantially spherical rotor and a substantially spherical stator. This is implemented in the present invention as a rotor with magnetic poles such that, when radially projected on a concentric octahedron, the same symmetrical pattern is obtained on all faces of said octahedron, the polarity of the poles projected on two adjacent faces of said octahedron being opposite and a stator with at least twenty poles magnetized with coils and such that, when radially projected on a concentric icosahedron, the same symmetrical pattern is obtained on all faces of said icosahedron, said stator being-in nominal position-concentric with said rotor. Real-time measurements, or equivalent information, of the position of the rotor with respect to the stator are obtained together with exported torque from the stator, or the orientation of the rotor with respect to the stator. A controller controls the current in the coils of the stator poles based on said measurements, or said equivalent information, such that the rotor is magnetically held in said nominal position, and that the desired torque is exported.
    • 矫正装置通常包括由基本上球形的转子和基本上球形的定子的同心组件组成的反作用陀螺仪球体。 这在本发明中被实现为具有磁极的转子,使得当径向地突出在同心八面体上时,在所述八面体的所有面上获得相同的对称图案,所述八极八面体的两个相邻面上的极性极性 相对的定子和具有线圈磁化的至少二十个极的定子,并且当径向地突出在同心二十面体上时,在所述二十面体的所有面上都获得相同的对称图案,所述定子位于与所述转子同心的标称位置 。 获得转子相对于定子的位置的实时测量或等效信息,以及来自定子的输出扭矩或转子相对于定子的取向。 控制器基于所述测量或所述等效信息来控制定子极线圈中的电流,使得转子被磁力地保持在所述标称位置,并且输出期望的扭矩。
    • 85. 发明申请
    • ACTIVE CONTROL OF SOFT HYBRID ISOLATION SYSTEMS
    • 软混合隔离系统的主动控制
    • US20080228332A1
    • 2008-09-18
    • US11687551
    • 2007-03-16
    • Timothy A. HindleBrian J. HamiltonLouis R. Jackson
    • Timothy A. HindleBrian J. HamiltonLouis R. Jackson
    • B64G1/24G05B13/02
    • B64G1/641B64G1/26B64G1/28B64G1/283B64G1/286B64G1/32B64G1/36B64G1/407
    • Apparatus, Systems, and Methods are provided for controlling motion of a spacecraft. One apparatus includes a non-contacting actuator and a passive mechanical system coupled in parallel with one another. A system includes a payload, a bus, and a hybrid actuator including a non-contacting actuator and a passive mechanical system coupled in parallel, and coupled between the bus and the payload. The system also includes an inertial actuator configured to maneuver the bus to maintain a relative position and/or attitude of the bus with respect to the payload. One method includes receiving a signal instructing a first controller to change the position and/or attitude of a payload and utilizing a hybrid system to change the position and/or attitude of the payload. The method also includes receiving the signal at a second controller and utilizing a system to change a position and/or attitude of the bus independent of the payload.
    • 提供装置,系统和方法来控制航天器的运动。 一种装置包括彼此并联连接的非接触致动器和被动机械系统。 一种系统包括有效载荷,总线和包括非接触致动器和并联耦合的无源机械系统并且耦合在总线和有效载荷之间的混合致动器。 该系统还包括惯性致动器,其构造成操纵总线以保持总线相对于有效载荷的相对位置和/或姿态。 一种方法包括接收指示第一控制器改变有效载荷的位置和/或姿态并利用混合系统来改变有效载荷的位置和/或姿态的信号。 该方法还包括在第二控制器处接收信号,并且利用系统来独立于有效载荷来改变总线的位置和/或姿态。
    • 87. 发明授权
    • Shaftless gyrostabilizer for aerial platforms
    • 用于高空作业车的无轴陀螺稳定器
    • US07343829B1
    • 2008-03-18
    • US11036492
    • 2005-01-14
    • William E. Inman
    • William E. Inman
    • G01C19/30G01C19/46G01C19/34
    • G01C21/18B64G1/28Y10T74/1243Y10T74/1289
    • Gyrostabilizer methods and apparatus having simultaneously counter-revolving masses that do not require physical shafts or axles. The stabilizer can have dual counter-revolving concentric rings, or tracks filled with weights such as spherical balls, that are propelled in orbital fashion by fluid pressure or electromagnet propulsion. The rings can include rigid contiguous rings, such as metal, plastic, composites, and the like. Additionally, the rings can include liquids and/or gasses. Still furthermore, the rings can include flexible, bendable contiguous materials, such as chains and ropes. The concentric ring diameters can be a few inches to more than ten (10) feet. Without an axle or shaft the weight of the gyrostabilizer is shifted to the perimeter where most of the momentum is generated at a fraction of the weight of gyrostabilizers that spin on an axle. The gyrostabilizer can dampen unsteadiness such as tremors, vibrations, sway, pitch, roll, and yaw.
    • 具有同时具有不需要物理轴或轴的反向旋转质量的Gyrostabilizer方法和装置。 稳定器可以具有双重反向旋转的同心环或充满重量(例如球形球)的轨道,其通过流体压力或电磁推进以轨道方式推进。 环可以包括刚性连续的环,例如金属,塑料,复合材料等。 另外,环可以包括液体和/或气体。 此外,环可以包括柔性的,可弯曲的连续材料,例如链条和绳索。 同心环直径可以是几英寸到十(10)英尺。 在没有轴或轴的情况下,陀螺稳定器的重量被转移到周边,其中大部分动量是在旋转轴上的陀螺仪的重量的一部分产生的。 陀螺稳定器可以抑制震动,振动,摇摆,俯仰,滚动和偏航等不稳定性。
    • 89. 发明申请
    • SPACECRAFT METHODS AND STRUCTURES WITH ENHANCED ATTITUDE CONTROL THAT FACILITATES GYROSCOPE SUBSTITUTIONS
    • 具有增强姿态控制的补充方法和结构,有助于取代GYROSCOPE
    • US20030171855A1
    • 2003-09-11
    • US10039488
    • 2001-10-28
    • BOEING COMPANY
    • Rongsheng LiJeffrey A. KurlandAlec M. DawsonYeong-Wei A. WuDavid S. Uetrecht
    • G05D001/00G06F007/00
    • G05D1/0883B64G1/26B64G1/28B64G1/285B64G1/288B64G1/32B64G1/36G05B13/024
    • Methods and structures are provided that enhance attitude control during gyroscope substitutions by insuring that a spacecraft's attitude control system does not drive its absolute-attitude sensors out of their capture ranges. In a method embodiment, an operational process-noise covariance Q of a Kalman filter is temporarily replaced with a substantially greater interim process-noise covariance Q. This replacement increases the weight given to the most recent attitude measurements and hastens the reduction of attitude errors and gyroscope bias errors. The error effect of the substituted gyroscopes is reduced and the absolute-attitude sensors are not driven out of their capture range. In another method embodiment, this replacement is preceded by the temporary replacement of an operational measurement-noise variance R with a substantially larger interim measurement-noise variance R to reduce transients during the gyroscope substitutions.
    • 提供了通过确保航天器的姿态控制系统不将其绝对姿态传感器驱动到其捕获范围之外来增强陀螺仪替换期间的姿态控制的方法和结构。 在方法实施例中,卡尔曼滤波器的操作过程 - 噪声协方差Q被临时过程噪声协方差Q临时替换。该替换增加了给予最近姿态测量的重量并加速了姿态误差的降低,并且 陀螺偏置误差。 取代陀螺仪的误差效应降低,绝对姿态传感器不会被驱赶出其捕获范围。 在另一方法实施例中,该替换之前是临时替换具有相当大的临时测量噪声方差R的操作测量噪声方差R,以减少在陀螺仪替换期间的瞬变。
    • 90. 发明授权
    • Shaftless gyrostabilizer
    • 无轴陀螺稳定器
    • US06568291B1
    • 2003-05-27
    • US09680495
    • 2000-10-05
    • William E. Inman
    • William E. Inman
    • G01C1902
    • B64G1/285B64G1/28B64G1/286Y10T74/1221Y10T74/1229Y10T74/125Y10T74/1296
    • A gyrostabilizer without a physical shaft or axle is constructed. The stabilizer has dual counter-revolving concentric rings filled with weights such as spherical balls that are propelled in orbital fashion by fluid pressure or electromagnet propulsion. The diameter of the concentric ring can vary from a few inches to more than ten (10) feet. Without an axle or shaft the weight of the gyrostabilizer is shifted to the perimeter where most of the momentum is generated at a fraction of the weight of gyrostabilizers that spin on an axle. Also without an axle or shaft the space between the center of revolution and the revolving balls is usable or void. When properly mounted in a vehicle or structure unsteadiness such as tremors, vibrations, sway, pitch, roll, yaw can be dampened.
    • 没有物理轴或轴的陀螺稳定器被构造。 稳定器具有双重反向旋转的同心环,其中装有诸如通过流体压力或电磁推进以轨道方式推进的球形球的重量。 同心环的直径可以从几英寸到十(10)英尺不等。 在没有轴或轴的情况下,陀螺稳定器的重量被转移到周边,其中大部分动量是在旋转轴上的陀螺仪的重量的一部分产生的。 也没有轴或轴,旋转中心和旋转球之间的空间可用或无效。 当正确地安装在车辆或结构中时,诸如震颤,振动,摇摆,俯仰,滚动,偏航的不稳定性可以被抑制。