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Flexible Multi-Body Spacecraft Simulator: Design, Construction, and Experiments.
| 题名： | Flexible Multi-Body Spacecraft Simulator: Design, Construction, and Experiments. |
| 作者： | Atwood, A. L. |
| 关键词： | Artificial satellites, Spacecraft, Simulators, Flight control systems, Physical properties, Momentum, Moment of inertia, Gas bearings, Dc motors, Steady state, Space systems, Software prototyping, Mathematical models, Bearings, Vibration, Robotics, Optimal control, Flexible space system, Multi-body |
| 摘要： | The aim of this thesis was to develop and construct a flexible multi-body spacecraft simulator for use in testing optimal control-based slew and maneuver designs. The simulator is modified from an earlier prototype, which had a flexible arm and actuated robotic arm on an aluminum plate atop an air bearing. The new simulator features enhanced capabilities, with an improved passive flexible appendage, a commercial-off-the-shelf (COTS) robotic arm, a reaction wheel momentum control system, a wireless flight control system, and a battery-powered electrical distribution system. The COTS robotic arm was modified to function with either flexible or rigid joints, and was used as a basis for initial experimentation. The simulators purpose is to test agile cooperative maneuvers designed using optimal control theory. A specific maneuver was developed and tested for the robotic arm in its flexible joint configuration. It is shown experimentally that maneuver time could be reduced by 50% as compared to a baseline (standard) maneuver, and that the optimal control-based solution significantly reduced post maneuver vibrations. |
| 报告类型： | 科技报告 |
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