Flexible multi-body spacecraft simulator: design, construction, and experiments
Atwood, Adam L.
Ross, I. Michael
MetadataShow full item record
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 simulator's 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.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Kim, J.J.; Agrawal, B.N. (2008);This paper presents a slew maneuver control design of three-axis rotational flexible spacecraft. The focus of the work is to investigate the nonlinear effect of the three axis maneuver for a flexible spacecraft when a ...
Vibration Reduction for Flexible Spacecraft Attitude Control Using PWPF Modulator and Smart Structures Song, G.; Agrawal, B.N. (1999);This paper presents a new approach to vibration reduction of flexible spacecraft during attitude control by using Pulse Width Pulse Frequency (PWPF) Modulator for thruster firing and smart materials for active vibration ...
Experimental Verification of Attitude Control Techniques for Slew Maneuvers of Flexible Spacecraft Hailey, J.; Sortun, C.; Agrawal, B.N. (1992);This paper presents experimental verification of modern and classical control laws on flexible spacecraft structures. The Flexible Spacecraft Simulator at the Naval Postgraduate School is designed to test a variety of ...