Thick-Panel Origami Inspired Single-Loop 7R Mechanism for Reconfiguration Satellite Systems

Modular reconfigurable satellites have emerged as a promising solution for on-orbit servicing, as they enable flexible mission adaptation by dynamically adjusting multiple functional modules. However, conventional reconfiguration strategies primarily depend on the physical separation and reconnection of modules, which often require a large number of actuators. Such extensive inter-module connections not only increase system complexity but also compromise overall reliability, highlighting the need for more efficient reconfiguration approaches. This paper presents the design of reconfigurable satellite systems designed to achieve the desired functionality by incorporating a novel single-loop 7R mechanism, inspired by thick-panel origami, is introduced to facilitate multiconfiguration transformations. In addition, the configuration of the actuators was analyzed and optimized, and the driving schemes for five reconfigurable paths were calculated to enhance the operational efficiency. The principled sample machine was experimentally validated by successfully reconfiguring the satellite system into four distinct shapes: plane, cuboid, rhomboid, and triangular prism. Notably, this was accomplished using only three actuators, showcasing both the system's efficiency and adaptability. This work advances the design of reconfigurable satellite systems by introducing novel mechanisms and structures, while optimizing actuator configurations, offering new architectural possibilities for future on-orbit servicing and exploration missions.