International Journal of Automation, Control and Intelligent Systems
Articles Information
International Journal of Automation, Control and Intelligent Systems, Vol.2, No.1, Jan. 2016, Pub. Date: Feb. 29, 2016
Experiments in Control of Rotational Mechanics
Pages: 9-22 Views: 630 Downloads: 463
Authors
[01] Timothy Sands, Mechanical Engineering, Stanford University, Stanford, USA.
[02] Jae Jun Kim, Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, USA.
[03] Brij N. Agrawal, Mechanical and Aerospace Engineering, Naval Postgraduate School, Monterey, USA.
Abstract
This paper evaluates controlling rotational mechanics by examining the contributions of individual components of one common adaptive control algorithm used for spacecraft attitude control. Feedforward and feedback controls are briefly introduced for context, then parameter adaptation and reference trajectories are applied individually to feedforward and feedback controls. The effects of noise are also examined. The various control schemes are simulated to heuristically display the impacts of reference trajectories versus desired trajectories, adaptation versus non-adaptive, and also the effects of adaptation and control gains in addition to sensor noise. The simulations are validated by experimental results on a free-floating three-axis spacecraft simulator actuated by non-redundant single-gimbal control moment gyroscopes.
Keywords
Rotational Mechanics, Newton-Euler, Euler’s Moment Equations, Automatic Control, Adaptive Systems, Reference Trajectory
References
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