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Showing 1 to 2 of 2 for “"Reaction Wheel Pyramid"”.
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Analysis, Simulation, and Measurement of Micro-Vibrations in Reaction Wheels for High-Performance Imaging Missions
… degraded by micro-vibrations originating from reaction wheels, which are the primary attitude actuators. These vibrations, resulting from mechanical unbalance, torque ripple, and bearing imperfections, propagate through the satellite structure and induce line-of-sight (LoS) jitter. This thesis …
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Adaptive Control Applied to the Cal Poly Spacecraft Attitude Dynamics Simulator
… bearing spacecraft simulator controlled by four reaction wheels in a pyramidal arrangement. Tests were performed to determine the effectiveness of the two adaptive control theories under nominal operating conditions, a “plug-and-play” spacecraft scenario, and under simulated actuator damage. …