NEAR-MINIMUM TIME, CLOSED-LOOP SLEWING OF FLEXIBLE SPACECRAFT
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The near-minimum time single-axis slewing of a flexible spacecraft with simultaneous suppression of vibration of elastic modes is considered. The hyperbolic tangent (tahh) function is used as a smooth approximation to the discontinuous sgn function occurring in the rigid body "bang-bang" control. Variable structure control concepts are used to identify the necessary characteristics of the control switching line. Simulations of the rest-to-rest and tracking maneuvers indicate that the elastic energy can be reduced by several orders of magnitude with only a modest increase in the maneuver time. 1990 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS
author list (cited authors)
BYERS, R. M., VADALI, S. R., & JUNKINS, J. L.
complete list of authors
BYERS, RM||VADALI, SR||JUNKINS, JL