Optimal vibration control of flexible spacecraft during a minimum-time maneuver |
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Authors: | L Meirovitch Y Sharony |
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Institution: | (1) Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia;(2) Department of Electrical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia |
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Abstract: | This paper is concerned with the simultaneous maneuver and vibration control of a flexible spacecraft. The problem is solved by means of a perturbation approach whereby the slewing of the spacecraft regarded as rigid represents the zero-order problem and the control of vibration, as well as of perturbations from the rigid-body maneuver, represents the first-order problem. The zero-order control is to be carried out in minimum time, which implies bang-bang control. On the other hand, the first-order control is a time-dependent linear quadratic regulator including integral feedback and prescribed convergence rate.This research was sponsored by USAF/ASD and AFOSR Research Grant F33615-86-C-3233 monitored by Drs. A. K. Amos and V. B. Venkayya, whose support is greatly appreciated. |
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Keywords: | Maneuver and vibration control flexible spacecraft perturbation approach minimum-time control bang-bang control time-dependent linear quadratic regulator integral feedback prescribed convergence rate |
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