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公开(公告)号：US10197792B2
公开(公告)日：2019-02-05
申请号：US15050359
申请日：2016-02-22
申请人： Raytheon Company
发明人： Andrew L. Bullard
摘要： A reaction compensated steerable platform device is disclosed. The reaction compensated steerable platform device can include a base, a steerable platform movably coupled to the base, and a reaction mass movably coupled to the base. The reaction compensated steerable platform device can also include a primary actuator coupled to the steerable platform and the base to cause movement of the steerable platform. The reaction compensated steerable platform device can further include a secondary actuator coupled to the reaction mass and the base to cause movement of the reaction mass. In addition, the reaction compensated steerable platform device can also include a load sensor configured to provide feedback for actuation of the secondary actuator, such that the reaction mass moves to compensate for a load induced on a support structure by the movement of the steerable platform.
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公开(公告)号：US10139617B2
公开(公告)日：2018-11-27
申请号：US15050346
申请日：2016-02-22
申请人： Raytheon Company
发明人： Andrew L. Bullard
摘要： A reaction compensated steerable platform device is disclosed. The reaction compensated steerable platform device can include a base, a steerable platform movably coupled to the base, and a reaction mass movably coupled to the base. The reaction compensated steerable platform device can also include a primary actuator to cause movement of the steerable platform, and a trim actuator coupled to the reaction mass and the base. In addition, the reaction compensated steerable platform device can include a sensor configured to provide feedback for actuation of the trim actuator. The reaction mass can be configured to move by actuation independent of the trim actuator to compensate for a first portion of a load induced by the movement of the steerable platform. Actuation of the trim actuator can be controlled by the sensor, such that the reaction mass moves to compensate for a second portion of the load induced by the movement of the steerable platform.
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公开(公告)号：US20180252261A1
公开(公告)日：2018-09-06
申请号：US15448538
申请日：2017-03-02
申请人： Raytheon Company
发明人： Andrew L. Bullard
摘要： A flexural pivot is disclosed. The flexural pivot can include a plurality of flexure support members, each flexure support member having a plurality of flexure openings and a plurality of wells each in fluid communication with a respective flexure opening. The flexural pivot can also include at least one flexure to rotatably couple the plurality of flexure support members to one another. The at least one flexure can have first and second flexible blades arranged in a cross configuration. The first and second flexible blades can be disposed in the flexure openings of the flexure support members, and coupling material deposited in the flexure openings can couple the first and second flexible blades to the flexure support members.
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公开(公告)号：US20180128418A1
公开(公告)日：2018-05-10
申请号：US15344428
申请日：2016-11-04
申请人： Raytheon Company
发明人： Andrew L. Bullard , Shane E. Wilson
CPC分类号： F16M11/24 , F16F1/025 , F16F1/18 , F16F3/02 , F16F15/02 , F16F15/046 , F16F2228/066
摘要： A bi-directional spring member is mounted to a support platform, the bi-directional spring member being coupled to a payload. The bi-directional spring member includes a non-linear spring component having a rigid member enclosing at least a portion of a compliant planar member and a linear spring component. The compliant planar member flexes in a direction opposite a direction of low amplitude vibrational forces acting on the compliant planar member to reduce vibrational forces acting on the support platform and the linear spring member flexes to reduce high amplitude vibrational forces acting on the support platform.
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公开(公告)号：US20180128303A1
公开(公告)日：2018-05-10
申请号：US15346467
申请日：2016-11-08
申请人： Raytheon Company
发明人： Andrew L. Bullard
摘要： A lockable lateral adjuster mechanism comprises a platform with a channel carried by a base. A cam has an eccentric head that is pivotally disposed in the channel. The cam has a stem extending through the channel and into a counter bore in the base. The platform is laterally displaceable with respect to the base as the cam pivots. A countersunk interface is disposed between the eccentric head and the channel. A fastener extends through the cam to the base, and secures the cam, and thus the platform, to the base, and applies an axial load on the countersunk interface along an axis of rotation of the cam.
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公开(公告)号：US20170090178A1
公开(公告)日：2017-03-30
申请号：US14868955
申请日：2015-09-29
申请人： Raytheon Company
摘要： A triangular frame metering structure includes three side beams and three end pieces each connected between two of the side beams. Each end piece top and bottom is configured for connection of support loads, with all support loads connecting to the metering structure at the top or bottom of one of the end pieces. Secondary mirror focusing mechanisms mounted on the end piece tops support pairs of secondary mirror struts. Strut mounts on the end piece bottoms provide connections to pairs of primary mirror struts, base struts, and instrument struts. All support loads connected to the metering structure are thus connected only to the corners of the metering structure and are connected at a same radial distance from a central longitudinal axis. The metering structure has reduced mass with high stiffness for supporting large aperture telescopes.
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57.发明授权Frequency-matched cryocooler scaling for low-cost, minimal disturbance space cooling 有权频率匹配的低温冷却器缩放，用于低成本，最小的扰动空间冷却公开(公告)号：US09551513B2
公开(公告)日：2017-01-24
申请号：US14303036
申请日：2014-06-12
申请人： Raytheon Company
CPC分类号： F25B9/14 , F25B9/145 , F25B2309/001 , F25B2309/1411 , F25B2309/1423 , F25B2400/073 , F25B2500/13 , G01C19/02
摘要： Components within a cryocooler are scaled and/or configured for operation at a CMG operating frequency (e.g., 100 Hz) rather than at 30 to 70 Hz, matching the exported disturbances of control moment gyroscopes on the same platform and reducing line-of-sight jitter for electro-optic infrared focal plane array sensors. The smaller piston working volume and other reduced component sizes allow the cryocooler to be smaller and lighter than designs operating at lower frequencies. Combined with an advanced regenerator suitable for the higher frequency operation, the cryocooler has improved cooling efficiency over such lower frequency designs.
摘要翻译： 低温冷却器内部的部件按比例缩放和/或配置为在CMG工作频率（例如，100Hz）而不是在30至70Hz的条件下操作，与控制力矩陀螺仪在同一平台上导出的扰动相匹配，并减少视线 电光红外焦平面阵列传感器的抖动。 较小的活塞工作容积和其他减小的部件尺寸允许低温冷却器比在较低频率下工作的设计更小更轻。 结合先进的再生器适用于较高频率的操作，低温制冷机在这种较低频率设计中具有改进的冷却效率。
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公开(公告)号：US20160016678A1
公开(公告)日：2016-01-21
申请号：US14799636
申请日：2015-07-15
申请人： RAYTHEON COMPANY
发明人： Andrew L. Bullard
IPC分类号： B64G1/54
摘要： A solar rejection system includes an enclosure for housing a sensor, and a movable sunshade. The housing has an opening or aperture for admitting light to the sensor, and the sunshade is moved as needed to prevent harmful solar illumination of the sensor. The sunshade may be a flat panel. The sunshade panel is mounted to a hinge that is located on one side of a large diameter bearing that allows the shade to be rotated around the aperture of the sensor to always prevent the sun from illuminating the aperture. The hinge allows the shade to be tilted to either allow the sensor to see further off axis without obscuration or to block the sun when it moves in front of the sensor. Full closure of the sunshade on its hinge allows it to also function as an aperture door, blocking the opening or aperture.
摘要翻译： 太阳能排除系统包括用于容纳传感器的外壳和可移动的遮阳罩。 壳体具有用于将光引导到传感器的开口或孔，并且遮阳板根据需要移动以防止传感器的有害的太阳照射。 遮阳可以是平板。 遮阳板安装在铰链上，该铰链位于大直径轴承的一侧，允许遮光罩围绕传感器的孔旋转，以防止太阳照射孔。 铰链允许阴影倾斜，以允许传感器远离轴线而不会遮挡，或者在传感器前方移动时遮挡太阳。 遮阳板在其铰链上的完全关闭允许其还用作孔门，阻挡开口或孔。
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