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A New Two Degrees-of-Freedom Actuator Used for Vibration Control of Large Space Structures
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English
Abstract
For large space structures (LSS), the interaction between control system and structural vibration is a major problem. In this paper, the authors will show a new two Degrees-of-Freedom actuator called “Super precision Positioning Device (SPD)” (1)∗ which converts rotational motion to translational motion without cams or link mechanism, and experimental results of active vibration control to large space structures using the actuator as an active damping enhancer.
In the experiment, the SPD is mounted to a rigid base to which a flexible structure model is attached. The structure is a free standing flexible frame type structure and it has multi-dimensional vibration modes to simulate a real structure. The movement of the SPD is controlled to damp three dimensional vibration by sensing moments of the structure.
The experimental results in this paper shows that the SPD is capable of reducing multi-dimensional structural vibration.
Authors
- Osamu Okamoto - National Aerospace Lab. Japan
- Teruomi Nakaya - National Aerospace Lab. Japan
- Seizo Suzuki - National Aerospace Lab. Japan
- Kenji Ogimoto - Kawasaki Heavy Industries, Ltd. Japan
- Yasuaki Taniguchi - Kawasaki Heavy Industries, Ltd. Japan
- Hajime Sakamoto - Kawasaki Heavy Industries, Ltd. Japan
- Goji Iba - Nachi-Fujikoshi Corp. Japan
- Sotomitsu Hara - Nachi-Fujikoshi Corp. Japan
- Makoto Hamada - Nachi-Fujikoshi Corp. Japan
Topic
Citation
Okamoto, O., Nakaya, T., Suzuki, S., Ogimoto, K. et al., "A New Two Degrees-of-Freedom Actuator Used for Vibration Control of Large Space Structures," SAE Technical Paper 912000, 1991, https://doi.org/10.4271/912000.Also In
References
- Nakaya T. et al. Superprecision Positioning Device 1988
- Okamoto O. et al. Docking and Active Damping Device for Space Structures 1991
- Balas M. J. Direct Velocity Feedback Control of Large Space Structures J. Guidance and Control 2 3 May-June 1979 252 253