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Control of spin ambiguity during reorientation of an energy dissipating bodyA quasi-rigid body initially spinning about its minor principal axis and experiencing energy dissipation will enter a tumbling mode and eventually reorient itself such that stable spin about its major principal axis is achieved. However, in this final state the body may be spinning in a positive or negative sense with respect to its major axis and aligned in a positive or negative sense with the inertially fixed angular momentum vector. This ambiguity can be controlled only through an active system. The associated dynamical formulations and simulations of uncontrolled reorientations are presented. Three control schemes are discussed and results offered for specific examples. These schemes include displacement of internal masses, spinning up of internal inertia, and reaction jets, all of which have demonstrated the ability to control spin ambiguity.
Document ID
19740033961
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kaplan, M. H.
Cenker, R. J.
(Pennsylvania State University University Park, Pa., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1973
Publication Information
Publication: Journal of Spacecraft and Rockets
Volume: 10
Subject Category
Space Vehicles
Accession Number
74A16711
Funding Number(s)
CONTRACT_GRANT: NGR-39-009-162
Distribution Limits
Public
Copyright
Other

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