Spacecraft attitude testbed

• Published in: Advances in space research 2024-09, Vol.74 (5), p.2239-2269
• Main Authors: Stromecki, Michael, Bani Younes, Ahmad
• Format: Article
• Language: English
• Subjects: Attitude control; Attitude testbed; Helmholtz coils; Magnetic torquer; Reaction wheels
• ISSN: 0273-1177; 1879-1948
• DOI: 10.1016/j.asr.2024.05.069

•Designed affordable 3DOF attitude simulator.•In–house built 3-axis Helmholtz coil cage.•Identified CubeSat demonstrator parameters.•Demonstrated CubeSat self-actuation & detumbling. Spacecraft attitude determination and control systems (ADCS) stand as a pivotal factor for ensuring the success of missions. As satellite sizes continue to decrease, the need for more intelligent and efficient control algorithms becomes increasingly pronounced. In response to this imperative, we propose the development of a scaled-down testbed specifically designed for evaluating satellites (ACDS). This testbed will demonstrate effective control of a CubeSat through the use of Helmholtz coils, magnetic torquer solenoids, reaction wheels and inexpensive student-made components and available components off the shelf (COTS) in the San Diego State University SPACE Lab. Referred to as the Spacecraft Attitude Testbed (SAT), this custom-designed 3-DoF experimental attitude platform replicates the conditions experienced by a weightless satellite in space. The objective of this research paper is to improve the understanding of how to manufacture a testbed and components like those within this paper, expose some of the issues encountered and improve the outcomes for future academic testbeds. Within this study, the testbed employs torque application to magnetic torquers and reaction wheels to regulate attitude. In summary, this research endeavors to establish a comprehensive and cost-effective testbed platform dedicated to the assessment of spacecraft attitude control and determination systems. It not only seeks to enhance our understanding of advanced control algorithms but also aims to contribute valuable insights into fault detection and adaptive control strategies, ultimately bolstering the efficiency and robustness of satellite operations.