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TITLE |
Jitter suppression experiment active damping system design considerations |
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著者 |
Frank, G.J.; Olson, S.E.; Drake, M.L. Dayton Univ. Res. Inst., Dayton, OH, USA |
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発表誌と |
Proceedings of the SPIE - The International Society for Optical Engineering vol.2190 p.802-12, 1994 |
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要旨 |
The NASA IN-STEP experiment entitled Jitter Suppression Experiment (JSX) will demonstrate a combined active/passive vibration control system on an actual full-scale space structure. The authors present various mechanical considerations in the design of the active control system. This includes evaluating different sensor and actuator types and evaluating applicable control theories and control implementations. Actuators examined for use included electro-mechanical actuators, memory metals, piezoelectric (PE) ceramics and films, electro-strictive materials, and magneto-strictive materials. Sensors examined included strain gages, accelerometers, and PE ceramics and films. Control theory and control implementation analysis included evaluating various algorithms for controlling the system; evaluating actuator/sensor systems such as self-sensing actuator/sensor systems, collocated actuator/sensor systems, and nearly collocated actuator/sensor systems; and evaluating control theory implementations such as single-input single-output (SISO), local multiple-input multiple-output (MIMO), or global MIMO methods. The system chosen and selection criteria are discussed. (5 Refs) |