B64G2004/005

IN-SPACE GRASPING SYSTEM AND METHOD OF OPERATION

A coupling system and a method of coupling two objects is provided. The coupling system including a passive unit having a first side and an opposing second side, the first side having a recess with a lip. The coupling system further having an active unit that includes an actuator, a cam mechanism and a plurality of capture rollers. The cam mechanism is operably coupled to the actuator, the cam mechanism being movable from a stowed position to a deployed position. The plurality of capture rollers is operably coupled to the cam mechanism to move from a first position to a second position in response to the cam mechanism moving from the stowed position to the deployed position, the plurality of capture rollers engaging the lip in the second position when the passive unit is in contact with the active unit.

APPARATUS AND METHODS FOR SPACECRAFT ATTITUDE CONTROL USING A SOLAR SAIL
20230322417 · 2023-10-12 ·

An attitude control module is described for providing propellant-free attitude control and momentum desaturation to a spacecraft. The attitude control module includes at least one solar sail comprising a reflective surface for reflecting solar photons; and at least one robotic arm coupled to the at least one solar sail, said at least one robotic arm comprising at least 4 degrees of freedom for positioning and orienting the at least one solar sail relative to the spacecraft. A corresponding method for operating the attitude control module to unload excess momentum from a spacecraft is also described.

INTERLOCKING, RECONFIGURABLE, RECONSTITUTABLE, REFORMABLE CELL-BASED SYSTEM WITH NESTED RING STRUCTURES
20230331401 · 2023-10-19 · ·

Cell-based space systems with nested-ring structures that interlock and can change configuration to support a mission are provided. The cells may self-assemble into a larger structure to carry out a mission. Multiple rotatable rings may be included in a cell, with a payload/control section in the center. The rings may provide power and/or data to trams that move about the rails. Trams may interlock with other cells, carry sensors or other devices, etc. Cells may be stowed in a cell stack that is deployable. Such cell-based systems may have various applications in space, on Earth, other celestial bodies, and underwater.

SEALING OF MULTI-LAYER INSULATION BLANKETS FOR SPACECRAFT

To facilitate on-orbit servicing, such as for a refueling operation, techniques are presented for a servicing satellite to cut through the multi-layer insulation blanket of a client satellite to provide access to the client satellite without releasing unacceptable quantities of foreign object debris from the multi-layer insulation. The serving satellite includes a sealing tool, such as a pair of heater rollers, that apply pressure and heat to the insulating blanket to melt the inner layers and seal the outer layers together. The servicing satellite can then use a cutting tool to cut the sealed region and access the client satellite.

REFUELING TOOL AND SYSTEM INCORPORATING THE REFUELING TOOL

The present disclosure relates to a robotically controlled satellite refueling tool and associated robotically controlled support and site preparation tools which facilitates on-orbit refueling by teleoperation of fill/drain valves of various designs and dimensions on satellites not originally prepared for on-orbit servicing, through the installation of quick connect safety valves, using vision-based feedback as well as feedback from sensors embedded in the refueling tool to operate a suite of adaptable and adjustable mechanisms. The refueling tool has an open architecture to allow a refueling tool vision system to see the fill/drain valve and the section of the refueling tool that is engaged with the fill/drain valve. The support tools include a blanket cutter tool, a blanket handler tool, a wire cutter tool, a gripper tool, and the site preparation tools include a B-nut removal tool and a crush seal removal tool. Each of these tools includes a common base structure which is interfaced to the end effector of the robotic arm for transmitting rotation and torque to the various tools.

GROUND SIMULATION DEVICE AND METHOD FOR ON-ORBIT MANIPULATION OF SPACE MANIPULATOR

A ground simulation device and method for an on-orbit manipulation of a space manipulator is provided. The ground simulation device includes: a dual-arm robot, configured to simulate the space manipulator operating a target object; a suspension device, including a fixed post and passive rods, where the passive rods are movably connected with a top end of the fixed post, and the target object is suspended to the passive rods; and a simulation platform, configured to fix the dual-arm robot and the suspension device thereon. The ground simulation device provides the passive rods on the suspension device and suspends the target object to the passive rods, thus overcoming the gravity of the target object. In addition, the passive rods can drive the target object to move under an influence of an external force, achieving a similar suspension effect to that in space, and providing a desired, safe, and reliable implementation effect.

SYSTEM AND METHOD FOR MANUFACTURING A SPACE-BASED COMPONENT
20230028055 · 2023-01-26 ·

A system and method for manufacturing a space-based component in space. The method includes collecting and capturing space debris directly from and suspended in space, heating the collected space debris using solar radiation in a manner that separately and independently melts different constituent elements and compounds in the space debris, collecting the different constituent elements and compounds as they are being separately melted, storing the elements and compounds in a molten, solid or vapor form, and fabricating the space-based component using the stored elements and compounds.

ELECTROSTATIC DEBRIS REMOVAL SYSTEM
20230365278 · 2023-11-16 ·

A system for collecting debris includes a collector configured to accumulate debris and retain an electrostatic charge; a deployment mechanism configured to move the collector into a path of the debris; an electrostatic charging array comprising one or more wires or plates operatively connected to the collector; and one or more processors operatively coupled to the collector, the deployment mechanism, and the electrostatic charging array. The one or more processors are configured to track debris in relation to the collector; control movement of the collector and the deployment mechanism; and regulate power to the electrostatic charging array.

Multi-arm Spacecraft Model Predictive Control Method Based on Mixture of Gaussian Processes, Equipment, and Medium
20230381956 · 2023-11-30 ·

The present disclosure provides a multi-arm spacecraft model predictive control method based on the mixture of Gaussian processes, equipment, and a medium. Model predictive control has excellent performance in dealing with complex nonlinear systems such as multi-arm spacecrafts with various constraints, and is widely applied to ground robots, unmanned aerial vehicles, autonomous driving and other practical scenarios. Therefore, a task space controller is designed based on the model predictive control in the present disclosure. Besides, in order to enhance the anti-interference capability of the present disclosure, an interference model is established and compensation is carried out in the model predictive control by utilizing the characteristics of small training data volume and high training speed in the mixture of Gaussian processes. Finally, a thrust distribution method is designed to complete platform control. The method provided by the present disclosure is convenient and intuitive in design and has relatively high practicability.

Robotic capture interface

A capture interface is provided. The capture interface is configured to be rigidly affixed to an external surface of a recovery object and captured by a capture device. The capture interface includes a matte ferromagnetic surface of flat disposition and geometric outline, configured to facilitate capture by the capture device. The ferromagnetic surface includes a capture interface identifier.