- 期刊
- OpenAccess
Simulation of a Refined Passive Attitude Determination and Control System (ADCS) for a 1U CubeSat Using Permanent Magnets and Hysteresis Dampers
摘要
This study proposes a passive Attitude Determination and Control System (ADCS) for a 1U CubeSat to address the challenges in maintaining orbital stability. The research focused on selecting key passive components, including permanent magnets and hysteresis dampers, and involved theoretical analysis and MATLAB simulations to optimise design parameters like mass and magnetic strength for effective stabilisation in space. The simulation results showed that the CubeSat stabilised in 45 minutes, much faster than UiTMSAT-1, which took 120 minutes. This improvement is due to the optimised use of 28 magnets and 2 hysteresis dampers, compared to UiTMSAT-1's 16 magnets and 2 dampers. A key challenge in passive ADCS is achieving stabilisation without active components; magnets must provide enough torque to align with Earth's magnetic field without causing oscillations, and dampers must efficiently dissipate rotational energy without adding disturbances. Balancing these components requires precise tuning to adapt to the varying magnetic conditions in space, minimising detumbling time, and ensuring stable orientation. The study highlights the effectiveness of optimised design parameters in enhancing stabilisation efficiency. Future work should include testing a CubeSat prototype with the complete ADCS system to validate the simulation results, advancing CubeSat technology for space exploration.