Extensible Hook System for Rendezvous and Docking of Cubesat Swarm

Core Concepts

Proposing an extensible hook system for cubesat swarms to enhance cooperation and save fuel.

Abstract

Cubesats are miniaturized satellites used for various missions. Cubesat swarms offer scalability and robustness in operations. Challenges in guidance, navigation, and control (GNC) for cubesat swarms. Proposed extensible hook system based on a scissor boom structure. Simulation results show the feasibility of the proposed system. Importance of advanced GNC architecture for successful cubesat swarm operations. Future work includes developing the GNC stack for cubesat swarm connectivity.

Stats

The proposed system allows a cubesat swarm to be connected from a 10m distance. The system can be extended up to 5m, accommodating four extensible hook systems in a 16U cubesat. The EHS joint friction is 0.01 N s/m. Cubesat longitudinal max. force is 0.1 N. EHS joint max. torque is 200 mNm.

Quotes

"The proposed concept has been designed and evaluated from a mechanical and dynamic point of view." "The proposed system was simulated using Matlab Simscape Multibody, obtaining meaningful information about the required forces and torques."

Key Insights Distilled From

Extensible Hook System for Rendesvouz and Docking of a Cubesat Swarm

by Carl... at arxiv.org 03-28-2024

https://arxiv.org/pdf/2403.18376.pdf

Deeper Inquiries

How can the extensible hook system impact the future of cubesat swarm missions?

The extensible hook system proposed in the context above can significantly impact the future of cubesat swarm missions in several ways. Firstly, it offers a solution to the challenging tasks of formation flight, rendezvous, and docking within a cubesat swarm. By utilizing the extensible hook system, cubesats can connect and cooperate without the need for excessive fuel consumption, thus reducing mission costs and complexity. This system enables cubesats to maintain alignment and connectivity during formation flight, essential for various applications like Active Debris Removal (ADR) and Space-Based Solar Power (SBSP). The extensible hook system facilitates orbital rendezvous and docking operations, crucial for assembling structures in space or capturing debris, enhancing the versatility and capabilities of cubesat swarms.

What are the potential drawbacks or limitations of using magnetic fields for docking cubesats?

While using magnetic fields for docking cubesats presents several advantages, such as simplicity and ease of connection, there are potential drawbacks and limitations to consider. One significant limitation is the interference magnetic fields can have on cubesat sensors, particularly magnetometers used for navigation. The presence of strong magnetic fields during docking could disrupt sensor readings, affecting the cubesat's ability to navigate accurately. Additionally, the reliance on magnetic fields for docking may limit the flexibility of the system, as it may not be suitable for all mission scenarios or environments. Magnetic docking systems may also pose challenges in controlling the docking process precisely, especially in scenarios where fine adjustments are required. Ensuring the compatibility of magnetic docking systems with cubesat sensor systems and addressing potential interference issues are crucial considerations when implementing this technology.

How can the proposed GNC architecture be adapted for other space applications beyond cubesat swarms?

The proposed Guidance, Navigation, and Control (GNC) architecture designed for cubesat swarms can be adapted and applied to various other space applications beyond cubesats. The three-tiered navigation system, combining Global Navigation Satellite Services (GNSS), vision-based navigation, and electromagnetic field-based localization, can be utilized in larger spacecraft or satellite constellations for precise positioning and maneuvering. For instance, in satellite constellations for Earth observation or communication, a similar GNC architecture can enhance the accuracy of satellite positioning and coordination. The motion planning algorithms and control strategies developed for cubesat swarms can be extended to autonomous spacecraft assembly, space infrastructure construction, or even planetary exploration missions. By incorporating advanced control techniques like Model Predictive Control (MPC) and gain scheduling, the GNC architecture can improve the efficiency and autonomy of various space missions, ensuring precise maneuvering and coordination in complex space environments.